The density of a gaseous compound of nitrogen and oxygen is 4.11 g/l at stp . the most likely formula of this gas would be N2O4.
What do you mean by density?
The substance's mass per unit of volume is known as its density (volumetric mass density or specific mass). Although the Latin letter D may also be used, the sign most frequently used for density is (the lower case Greek letter rho). The formula for density is mass divided by volume:
p = m/v
where m is the mass, V is the volume, and is the density. Density is sometimes loosely defined as weight per unit volume[2], though this is incorrect scientifically; this quantity is more precisely known as specific weight. An example of this is in the US oil and gas industry.
The density of a pure substance is equal to its mass concentration in numbers.
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The characteristics of two different types of reactions are shown below:
Reaction A: An atom loses electrons during the reaction. Reaction
B: An atom loses protons and neutrons during the reaction. Which statement is true about the two reactions?
A. Both reactions retain the identity of the elements.
B. Both reactions change the identity of the elements.
C. Reaction A produces more energy than Reaction B.
D. Reaction B produces more energy than Reaction A.
The statement that is true about the two reactions is that: Reaction A produces more energy than Reaction B (option C).
What is a chemical reaction?Chemical reaction is a process, typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.
A chemical reaction involves the conversion of substances called reactants to other substances called products usually as a result of bond breaking.
According to this question, two reactions occur as described below:
Reaction A: An atom loses electrons during the reactionReaction B: An atom loses protons and neutrons during the reactionIf an atom loses electrons, it becomes positively charged, hence, releasing energy into surroundings. On the other hand, an atom loses protons and neutrons in reaction B, this means that the identity of the atom will be changed because the proton number will be changed.
Therefore, it can be said that reaction A will synthesize more energy than reaction B because electrons are lost in the former.
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What is the strongest type of intermolecular force between solute and solvent in the following solution:
CH3Cl(g) in CH3OCH3(g)
A. metallic bonding
B. dipole-dipole
C. dipole-induced dipole
D. hydrogen bonding
E. ion-dipole
F. dispersion forces
B. dipole-dipole
The strongest type of intermolecular force between solute and solvent in the following solution CH3Cl(g) in CH3OCH3(g) is dipole - dipole.
The positive end of one polar molecule and the negative end of another polar molecule are attracted to one another by dipole-dipole forces. Strengths of dipole-dipole forces per mole range from 5 kJ to 20 kJ.
Examples of polar compounds that interact dipole-dipole include hydrogen chloride (HCl), carboxylic acids (such as acetic acid), and amino acids. A polar molecule's positive end will pull another molecule's negative end and change the other molecule's location.
Hence, dipole dipole is the strongest type of intermolecular force between solute and solvent in the following solution CH3Cl(g) in CH3OCH3(g) .
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the following three organic compounds have a similar molar mass. place them in order of increasing boiling point (boiling point depends on the type of imf). formaldehyde methanol ethane h2c
Formaldehyde is a colorless, combustible gas that has a strong, pungent smell when it is at room temperature. Formaldehyde has a - 19.1 °C boiling point. 37% unrestrained
Explain about the Formaldehyde?A wide range of industries employ formaldehyde. It is used in labs, building materials, textiles, embalming, disinfectants, glues and resins, dyes, and other products.
The throat, nose, eyes, and skin can all become irritated by formaldehyde. Certain cancer types may be brought on by high exposure levels. Learn more about the harm exposure to formaldehyde can do to your health from the Agency for Toxic Substances and Disease Registry.
Formaldehyde has been linked to myeloid leukaemia and a number of uncommon malignancies, including those of the paranasal sinuses, nasal cavity, and nasopharynx, according to studies of individuals exposed to high doses of the chemical, such as industrial employees and embalmers.
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What is irony bring out the elements of irony in the story?.
Irony: a situation in which there is a contrast between expectation and reality.Irony can take many different forms.
The verbal irony, dramatic irony, and situational irony are the three types .Irony occurs in literature AND in life whenever a person says something or does something that departs from what they (or we) expect them to say or do.
Irony in the story 'Dusk':
Ironically, the main character, who thinks he is a good character judge, is duped by the young man who sat next to him on the park seat.
According to Gortsby, darkness is a time when dejected and shady people emerge.
The term irony has its roots in the Greek comic character Eiron, a clever underdog who by his wit repeatedly triumphs over the boastful character Alazon. The Socratic irony of the Platonic dialogues derives from this comic origin.
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Consider the insoluble compound nickel(II) hydroxide, Ni(OH)_2. The nickel ion also forms a complex with cyanide ions. Write a balanced net ionic equation to show why the solubility of Ni(OH)_2 (s) increases in the presence of cyanide ions and calculate the equilibrium constant for this reaction. For Ni(CN)_4^2-, K_f = 1.0 Times 10^31. Use the pull-down boxes to specify states such as (aq) or (s).
The pull-down boxes to specify states such as (aq) or (s) conclude that equilibrium constant for this reaction is 2.8*10¹⁵.
The following chemical reaction equation results in the formation of the nickel cyanide complex.
Ni(OH)(s)+4CN=={Ni(CN)²₄]+2OH
We know that,
K = Kf.Ksp
We are given that, Kf=1*10³¹
and, Ksp=2.8*10⁻¹⁶
K = Kf.Ksp
K = (1*10³¹)*(2.8*10⁻¹⁶)
= 2.8*10¹⁵
Thus, we can conclude that equilibrium constant for this reaction is 2.8*10¹⁵.
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would the root-mean-square (rms) speed of a hydrogen molecule be equal to that of an oxygen molecule in a gas at 300 k? g
At 300 k, the root-mean-square (rms) speed of a hydrogen molecule in a gas is equal to that of an oxygen molecule. the hydrogen molecule is 18.75 K in temperature.
Any molecule's root mean square velocity can be determined using the formula below:
μrms=√3RT/M
Since the RMS speed of two oxygen and hydrogen molecules is the same, equation (I) can be expressed as follows:
√3RT1/M1=√3RT2/M2
√T1/M1=√T2/M2
The molar mass. of oxygen molecule is 32.00 g/mol,
The molar mass. of hydrogen molecule. is 2.00 g/mol.
Substitute the known values in equation .
√300K/32.00g/mol=√T2/2.00g/mol
Squaring both the sides
T2=18.75k
The most basic molecule is a hydrogen molecule. Electrostatic forces hold together its two protons and two electrons, which are held together. Similar to atomic hydrogen, the assemblage can exist at various energies. The hydrogen atom H is one. One hydrogen molecule, H2, consists of two hydrogen atoms. Two hydrogen atoms make up the symbol 2H.
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calculate the volume of 3.00m naoh (the more concentrated solution) needed to prepare 300. ml of 0.100m naoh (the more dilute solution).
We know that,
1000 ml = 1 L
Molar mass of NaOH = (1 x 22.990 + 1x 16.0 + 1 x 1.008) = 39.998 g/mol
Preparation of solution
The solubility of NaOH in water at 25 deg. C is 1000 g/L or 1 g/ml.
First, we have to know the amount of NaOH required for the preparation of the solution.
To do that, we calculate the number of moles in 300 ml of 0.100 M NaOH solution = (volume in L x Molarity of solution) = (0.3 L x 1 M) =0.3 mol.
Next, by definition, moles of solute = (mass of solute/molar mass of solute).
That is, 0.3 mol = (mass of NaOH/39.998 g/mol).
Therefore, mass of NaOH required for the preparation of solution = (0.3 mol x 39.998 g/mol)= 11.994 g
Thus, you weigh out 11.994 g of NaOH in a clean and dry glass beaker quickly in a fine balance. This is to prevent the water vapour and CO2 of the atmosphere from contaminating the NaOH as it is hygroscopic in nature.
Dissolve it in the beaker with 25 ml of distilled or deionized water.
Stir the solution with a clean glass rod to dissolve it further and allow it to cool down before any further dilution.
Transfer the solution carefully to a 300 ml volumetric flask.
Rinse the beaker and the glass rod with 15 ml of distilled or deionized water and transfer it to the flask.
Top up the flask carefully to the mark with more distilled or deionized water.
Stopper the flask and mix well.
This is your 300 ml of 0.100 M NaOH solution.
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a 7.14-g sample of a diprotic acid requires 109.5 ml of a 0.750 m naoh solution for complete neutralization. determine the molar mass of the acid.
Molar Mass of the Acid = 117.7gm
Number of milli moles of NaOH in 109.5 ml of 0.750 M solution = 109.5 x 0.750 =82.125
Since the acid is a diprotic acid 82.125 moles of NaOH will be neutralized by (82.125/2) = 41.06moles of the (Diprotic acid).
H2X + 2NaOH ===> Na2X + 2 H2O
Therefore 41.06 moles = 4.9 g
1000moles of the Diprotic acid = 4.9x (1000/41.06)
Molar Mass of the Acid = 117.7gm
A proton is a positively charged hydrogen atom, while an acid is a compound that releases a proton. Acids that are able to release more than a single proton are known as polyprotic acids. Let's take a moment to break down that term: The root '-prot-' is derived from the word 'proton,' and the prefix 'poly-' is Greek for 'many.' Thus, polyprotic acids have many protons.
One particular kind of polyprotic acid is diprotic acid. If we break down the term 'diprotic' the same as before, the prefix '-di' is Greek for 'two.' Thus, just as the prefix suggests, diprotic acids have two protons to donate. Sulfuric acid, hydrogen sulfide, carbonic acid, chromic acid, and oxalic acid are all examples of diprotic acids.
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1. The function of a buffer is to:
A) change color at the end point of a titration
B) maintain a neutral pH
C) maintain the pH of a solution
D) act as a strong acid
E) be a strong base
A buffer solution is used to maintain the pH of a solution. Buffer solution has a constant pH and it does not taking part in any reaction directly. Thus, option C is correct.
What is pH?pH of a solution is the concentration of H+ ions in the solution. It measures how acidic or basic the solution is. The solution of pH 7 is neutral and solution with pH below 7 is acidic. Basic solutions has the pH above 7.
A buffer solution is used to maintain the pH of a solution in a constant either in acidic or basic range. There are two types of buffer solutions acidic buffer and basic buffers.
An acidic buffer is made by mixing a weak acid with its salt and a basic buffer is made by mixing a weak base with its salt. A buffered solution will change its pH up on the addition of an acid or base. Hence, option C is correct.
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while he is moving a container of a radioactive liquid, some of the liquid splashed onto the technician's arm. this situation is best be described as:
while he is moving a container of a radioactive liquid, some of the liquid splashed onto the technician's arm is Primary contamination.
Ionizing radiation is the kind of energy that emanates from radioactive materials. Radiation energy may be absorbed by the body when it comes into touch with a person. The following substances are naturally occurring radioactive elements in earth.
When some radioactive elements decay or break down, an energy known as alpha radiation is emitted. Examples of naturally occurring radioactive elements in the Earth's crust include uranium and thorium. These two substances progressively alter over billions of years, yielding decay byproducts including radon and radium. Energy is discharged throughout this process. Alpha radiation is one manifestation of this energy.
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A compound compoed of only carbon and hydrogen i 7. 743% hydrogen by ma. Propoe a Lewi tructure for the compound
Due to the hydrogen atom's single valence electron, it is represented as H.
What does hydrogen's Lewis structure look like?Due to the hydrogen atom's single valence electron, it is represented as H. Lewis electron-dot structures can be used to represent the structures of molecules that are joined by covalent bonds.
A hydrogen ion is the nucleus of a hydrogen atom that has lost contact with its electron in orbit. A proton, or a particle with a single positive electric charge, is the building block of hydrogen. So a single hydrogen ion, denoted by the symbol H+, is typically used to represent a proton.
It's marked H+. The name of the hydrogen cation varies depending on the isotope: The term "hydron" refers to any hydrogen isotope's positive ion (H+). 1H+ for proton (i.e. the cation of protium)
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Dr. Metallica wants to change the property of an alloy? How could she do this?
She could do any of the above.
She could change the metal(s) used in the alloy.
She could change the nonmetal (s) used in the alloy.
She could change the percentages of the elements used in the alloy.
Dr. Metallica can change the property of an alloy by changing metal or non metal and their respective percentage in alloy.
The meaning of an alloy is a material created by combining two or more metals. Additionally, alloys can be created by combining metals with other elements. Alloys frequently display characteristics that vary greatly from those of their constituent parts. It is usual for alloys to be harder and stronger than pure metals. Copper and zinc are two metals that are mixed to make brass. A metallic element (iron) and a trace amount (up to 2%) of a non-metallic element are alloyed to form steel (carbon). Copper and tin are combined to make bronze. It is frequently used in medals, coins, trophies, heavy tools, electrical components, and gears. Bronze typically contains copper (Cu) in the range of 75% and tin (Sn) up to 12%.
Hence, property of alloy can be changed through constituent element and their percentage.
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if you have 0.200 mol of a compound in a 0.275 m solution, what is the volume (in l) of the solution?
TRUE/FALSE the first step of a direct-marketing program is to determine which markets to target through the use of a mailing list or a marketing database.
The statement 'the first step of a direct-marketing program is to determine which markets to target through the use of a mailing list or a marketing database' is false.
In the field of business, such a strategy by which a company or organization directly reaches out to its customers or potential buyers of products, rather than including any third party is referred to as direct marketing.
The first step in direct marketing is to recognize your target market. The target market is recognized by fully researching about the market and its aspect. A mailing list or a marketing database is not used for this purpose. Rather fully detailed research analytics into the insight is used. Hence, the statement is false.
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How does the setting influence characterization in the text?.
The environment can distinguish your character. Characters with uncommon backgrounds will always be seen as strange, whether or not they actually are.
What influence does chemistry have on our lives?Chemistry provides for all of our basic needs, including food, clothing, shelter, health, energy, and clean air, water, and soil. Chemical technologies provide new solutions to problems with hygiene, resources, especially energy usage, which enhance our quality of life in many ways.
What does the word "influence" mean?The term in current usage often refers to the capacity to influence someone or something, particularly the capacity to bring about changes without exerting direct pressure.
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why does the simple distillation of liquids such as pentane, hexane show broad range of boiling point
If the components have boiling points that are significantly different from one another (by more than 100 °C), a simple distillation is utilized.
What is simple distillation?If the components have boiling points that are significantly different from one another (by more than 100 °C), a simple distillation is utilized. However, if a straightforward distillation is performed on a mixture where the constituents have boiling points that are more similar to one another (less than a 100 °C difference in boiling points), it will not be able to thoroughly purify the mixture.If the components of a mixture have considerably different boiling points, distillation, a procedure for purifying liquids, can separate the components. In a distillation, a liquid is heated in a "distilling flask," after which the vapors move to another area of the device and are captured.To learn more about simple distillation refer to:
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calculate the concentration of a. sodium phosphate in a 20.5 ml aliquot sample that is added to 75.0 ml of water
The concentration should be about [tex]$1 / 6$[/tex] of the original [tex]$(1 / 6 \times 4.2=0.7)$[/tex]
What is meant by concentration of molecule?A chemical's concentration in a solution describes how many of its molecules are dispersed throughout a relatively small volume of the solution. The amount of solute that has been dissolved in a specific volume of solvent or solution is measured by the solution's concentration. A solution that contains a significant amount of dissolved solute is said to be concentrated. The mass of the solute in a given volume of solution or the number of moles of the solute in a given volume of solution are the two fundamental methods for reporting the concentration of a solute in a solvent.The most common way to solve this problem is to use the formula
[tex]$$c_1 V_1=c_2 V_2$$[/tex]
In this problem,
[tex]&c_1=4.2 \mathrm{~mol} / \mathrm{L} ; V_1=45.0 \mathrm{~mL} \\[/tex]
[tex]&c_2=? ; V_2=250 \mathrm{~mL} \\[/tex]
[tex]&c_2=c_1 \times \frac{V_1}{V_2}=4.2 \mathrm{~mol} / \mathrm{L} \times \frac{45.0 \mathrm{~mL}}{250 \mathrm{~mL}}=0.76 \mathrm{~mol} / \mathrm{L}[/tex]
You are increasing the volume by a factor of about 6 , so the concentration should be about [tex]$1 / 6$[/tex] of the original [tex]$(1 / 6 \times 4.2=0.7)$[/tex]
The complete question is,
What would be the concentration of a solution made by diluting 45.0 mL of 4.2 M KOH to 250 mL?
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which of the following correctly explains why car tires may appear more deflated in winter than in summer? A) Atmospheric pressure outside is higher as colder air moves in during winter. B) As temperature decreases, the gas particles inside the tire move slower, collide less frequently with the walls of your tire's inner tube, and exhibit a lower pressure. C) As temperature decreases, the gas particles inside the tire move faster, collide more frequently with the walls of your tire's inner tube, and exhibit a lower pressure. D) The humidity in the air inside the tires decreases as temperatures approach freezing; below freezing, the volume occupied by the water vapor is lost when ice microcrystals form
The air compresses as it cools. Additionally, fewer molecules travel around in colder air. Less pressure will be applied to the tire walls by the air molecules. As a result, your tires appear to be flat.
Why do tires on cars lose air in the winter?Many drivers will notice a low-pressure warning light on their dashboard as winter approaches, or they may just notice that their tires don't appear to be quite as full as they should. The temperature decline is primarily to blame for this since colder air is denser and requires less tire pressure.
Why do vehicle tires lose pressure?In the winter, your tires lose air for the same physiological reason that medical professionals advise you to apply ice to an injury: cold temperatures promote contraction. Let's examine a closer examination of the science Warmer molecules travel more quickly. These swiftly moving molecules take up more room and disperse farther apart.
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What hypothesis did the Miller-Urey experiment support?.
The Miller-Urey experiment provides evidence that the nucleotide base adenine can be created by combining hydrogen cyanide and ammonia in water. Many further experiments were sparked by this one.
Joan Oro discovered in 1961 that mixing ammonia and hydrogen cyanide in water might produce the nucleotide base adenine. His work resulted in a significant amount of adenine, whose molecules were created from 5 molecules of HCN. Additionally, under these circumstances, a large number of ammonia atoms is produced from HCN and ammonia.
The chemical compound hydrogen cyanide, often known as prussic acid, has the formula HCN. It boils just a little bit over room temperature and is a colourless, incredibly deadly, combustible liquid.
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why do nonmetals near the right side of the periodic table tend to form diatomic molecules with themselves, like cl2 or o2?
Answer: I think because their is metals on the left side of the peridoic table
Explanation:
Part A Identify each of the following substances as a strong acid, a weak acid, a strong base, a weak base or a salt. Drag the appropriate substances to their respective bins. Reset Help H,SO CH,COOH LIOH NH K PO, KCI strong acid weak acid strong base weak base salt
COOH, SOCH, NH are the acids among compounds.
Any substance that, when dissolved in water, imparts an acidic flavor, can change the color of some indicators (such as blue litmus paper turning red), can react with some metals to release hydrogen, can interact with bases to form salts, and can quicken various chemical processes (acid catalysis). Acids are examples of both inorganic compounds known as mineral acids, such as sulfuric, nitric, hydrochloric, and phosphoric acids, as well as organic molecules that belong to the carboxylic acid, sulfonic acid, and phenol families. These substances have one or more hydrogen atoms, which when in solution are released as positively charged hydrogen ions (see Arrhenius theory).
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What is the hot holding temperature for fried rice?.
The hot holding temperature for fried rice is 135°F or above.
Rice, pasta, and other plant-based foods that are intended for hot holding must be cooked to at least 135°F. When food is discovered to be below the recommended safe cooking temperatures: - Continue cooking the meal until the required temperature is reached.
Foods stored at hazardous temperatures encourage the growth of bacteria and other germs that can lead to food-borne illness. The practice of "hot holding" refers to keeping hot food prepared for public consumption. When food is kept at high temperatures, hot holding inhibits the growth of bacteria. This reduces the possibility that someone will become ill after consuming food.
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propose two different combinations of bonding features to account for an ihd of 5 in a molecule consisting of c and h atoms and one o atom only
Intermolecular forces are the forces that exist between molecules. These forces are responsible for the interactions between molecules, and they determine the physical and chemical properties of matter. Without intermolecular forces, matter would not exist as we know it.
Intermolecular forces are classified into four main types: dispersion forces, dipole-dipole forces, hydrogen bonding, and ion-dipole forces. Dispersion forces are the weakest of the four, but they are also the most common. Dispersion forces exist between all molecules, and they are responsible for the forces of attraction between molecules. Dipole-dipole forces are slightly stronger than dispersion forces, and they exist between molecules that have dipoles. Hydrogen bonding is the strongest of the intermolecular forces, and it exists between molecules that have hydrogen atoms bonded to nitrogen or oxygen atoms. Ion-dipole forces are the strongest of the intermolecular forces, and they exist between molecules that have an ionic charge.
Intermolecular forces are important because they determine the physical and chemical properties of matter. Without these forces, matter would not exist as we know it.
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Refer to the figure below. Which of the following statements is TRUE for a sample moving from point A to point B on the diagram?
Choose one:
A. The sample heats up.
B. The sample begins to melt due to decompression.
C. The sample stays at the same depth within the Earth.
D. The sample does not change its physical state because its temperature has not changed.
Answer: D
According to the given statement The sample begins to melt due to decompression.
The correct option is B.
What is temperature called?The thawing and boiling extremes of water serve as the foundation for the two most popular test temperatures, Celsius (C) and Fahrenheit (F). There are 100 steps between the two locations on the Celsius scale and 180 on the Fahrenheit scale. Additionally, scientists employ the Kelvin units of the International System (K).
How is temperature gauged?Thermometers are used to measure the air's temperature. Common thermometers have a glass rod inside of which is a very thin tube. A liquid is delivered to the tube from a storage, or "bulb," at the thermometer's base.
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A reaction is shown. 4 F e plus 3 O subscript 2 forms 2 F e subscript 2 O subscript 3.
Using the chemical equation provided, identify which of the following are the coefficients of the reactants.
Select all that apply:
7
4
3
2
Reactants are located to the left of the arrow, and coefficients are represented by the full numbers to the left of compounds. The reactants in this reaction have coefficients of 4 and 3.
What is a reactant in chemistry?A component that is available at the outset of a biochemical reaction is known as a reactant. Products are the material(s) to the side of the arrow. A substance that remains after a chemical reaction is complete is known as a product. These are referred to as the reactants in a chemical reaction. The results of a process are called the outputs. These are referred to as the products in a chemical reaction.
Which side is the product and reactant?The reactants (everything you start with) are transformed into products in a chemical process (what you end with). An arrow separates the reaction mixture, which are displayed on the left side of an equation, from the outputs, which are displayed on the right.
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The complete question is -
A reaction is shown. Using the chemical equation provided, identify which of the following are the coefficients of the reactants.
4Fe+3O2⟶2Fe2O3
Select all that apply:
7
4
3
2
84 mL of 0.060 M NaF is mixed with 28 mL of 0.15 M Sr(NO3)2. Calculate the concentration of Sr2+ in the final solution. Assume volumes can be added. (Ksp for SrF2 = 2.0 × 10-10)
A. 0.038 M
B. 0.00012 M
C. 0.015 M
D. 0.045 M
E. 0.075 M
84 mL of 0.060 M NaF is mixed with 28 mL of 0.15 M Sr(NO3)2. the concentration of Sr2+ in the final solution is 0.015 M.
NaF = 84 mL = 0.084 L
Concentration = 0.060 M
Sr(NO₃)₂ = 28 mL = 0.028 L
molarity = 0.15 M.
molarity of NaF = mole / total volume
= (0.084 × 0.060) / 0.112
= 0.045 M
molarity of Sr(NO₃)₂ = mole / total volume
= (0.028 × 0.15) / 0.112
= 0.0375 M
the equation is given as :
Sr²⁺ + 2F⁻ ----> SrF₂
ksp = [Sr²⁺ ] [ F⁻]²
2 × 10⁻¹⁰ = (0.037 + x)(0.045 +2x)²
Sr²⁺ = x + 0.0375 = 0.015 M
The concentration of Sr²⁺ = 0.015 M.
Thus, 84 mL of 0.060 M NaF is mixed with 28 mL of 0.15 M Sr(NO3)2. the concentration of Sr2+ in the final solution is 0.015 M.
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Can you discount alcohol in Texas?.
According to TABC laws on alcohol use, it is illegal to sell alcohol in many places in texas thus no you can't discount alcohol in Texas.
Alcohol is prohibited in many parts of Texas thus anyone under the age of 21 may not be sold alcohol, including adults. Beer and wine may be purchased from licensed establishments Monday through Friday from 7:00 a.m. to midnight. On Saturday, they may sell them from 7:00 a.m. until 1:00 p.m. Additionally, they may sell on Sundays from noon to midnight. Only liquor stores, nevertheless, are allowed to sell distilled alcohol. On Sundays before noon, restaurants are allowed to serve alcoholic beverages with food. On the other hand, it is prohibited to sell any alcoholic beverages with a volume of more than 17% on Sunday (ABV). On Thanksgiving Day, New Year's Day, or Christmas Day, no establishment may offer any alcoholic beverages. Alcohol from a single producer cannot be sold by a restaurant or other retailer. And alcohol cannot be sold by food trucks.
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What is the formula to add values from cell A2 to A4?.
The values in cells A2 and A20 are added using the Excel notation =SUM(A2:A4).
The values in a range (a group of cells) can be added simply with a formula, however the SUM function is more user-friendly when working with bigger numbers. =SUM(A2:A6) is less likely to contain typographical errors than =A2+A3+A4+A5+A6.
In order to form the equation:
Put =SUM and the opening parenthesis in a cell ().
Enter the first formula range, commonly known as an argument, by typing A2:A4 (a piece of information required for the formula to function).
Type a comma to separate the first and second arguments (,).
The next argument to type is C2:C3.
Type a closing parenthesis, then press Enter.
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Does hydrogen and oxygen form an ionic bond?.
FALSE; water's hydrogen-oxygen bond is a covalent one. This is due to the insufficiency of the difference in electronegativity between these two elements.
What is electronegativity, and what is an example?The capacity of an atom to draw in an electron binding pair determines its electronegativity. The Pauling scale is the most often used. With a value of 4.0 given to fluorine, cesium and francium are really the least electronegative elements, with a value of 0.7.
What is electronegativity so why is it significant?An atom's propensity to draw electrons of electron density to itself is measured by its electronegativity. It determines that how shared electrons are allocated among the two atoms in some kind of a bond. The bigger an atom's electronegativity, the more strongly it is attracted toward the atoms in its bonds.
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How do scientists think the Grand Canyon was formed?.
Scientists think the Grand Canyon was formed when the Colorado River began to cut a channel through layers of rock.
The Grand Canyon is a one-kilometer-deep canyon in northern Arizona. Scientists estimate that the canyon may have formed 5 to 6 million years ago when the Colorado River began to channel itself through the rock formations. Humans have lived in the canyon and surrounding areas since the last Ice Age.
Paleozoic strata contain many fossils that help scientists learn more about the geological history of North America. Most of the fossils are sea creatures, which tells us that what is now central Arizona was once a sea. Here are some of the most common fossils found in the Grand Canyon. Canyons are formed by erosion. Over thousands of years, the flow of rivers erodes and erodes soil and rocks forming valleys.
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