The cation's ground-state electron configuration in Co(C₂H₃O₂)₂.4H₂O is the correct option is D) [Ar] 3d.
The compound is : Co(C₂H₃O₂)₂.4H₂O
The cation is Co²⁺
The anion is 2Co(C₂H₃O₂)⁻
The atomic number of Co = 29
The electronic configuration of Co = [Ar] 3d⁷ 4s²
The Co²⁺ ion means that the two electrons have removed from the element cobalt. The electrons are removed from the the outer shell. Therefore the electrons will removed from the 4s orbital.
The ground-state electron configuration of the Co²⁺ = [Ar] 3d⁷
The 3d orbital is of the higher energy as compared to the 4s orbital. so, first we remove the electrons from the 4s orbitals.
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How much water would have to be added to 135 mL of 3.00 M H2SO4 to prepare a 1.25 M H2SO4 solution? (Hint: What must the volume of the final solution be?)
The amount of water would be added to 135 mL of 3.00 M H₂SO₄ to prepare a 1.25 M H₂SO₄ solution is 324 L.
The initial volume H₂SO₄, V1 = 135mL = 0.135 L
The initial concentration H₂SO₄, M1 = 3 M
The final concentration H₂SO₄, M2 = 1.25
The final volume H₂SO₄, V2 ?
The dilution law is expressed as :
M1 V1 = M2 V2
V2 = M1 V1 / M2
V2 = (3 × 0.135 ) / 1.25
V2 = 0.324 mL
V2 = 324 L
The volume of the solution is 324 L with the concertation of the 1.25 M.
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How many mole of glucoe can be burned biologically when 10 mol of oxygen i available?
When 10 moles of oxygen are available, 1.67 moles of glucose can be burned biologically.
This can be calculated by balancing the equation for the reaction between glucose and oxygen: C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l). This means that for every 6 moles of oxygen, 1 mol of glucose will be consumed. Therefore, 10 moles of oxygen will consume 1.67 moles of glucose.
This reaction is important in biochemical processes, as it is the basis of respiration and energy production in cells. During respiration, glucose and oxygen are broken down in a series of chemical reactions, which release energy that can be used by the cell.
This energy is used to power a variety of cellular processes, such as muscle contraction and the synthesis of macromolecules. Therefore, it is essential for the production of energy in cells, and for the functioning of the cell as a whole.
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Which of the following is NOT true about an ionic compound?
is mostly soluble in water
is formed from nonmetal elements
has extended structures
is formed from oppositely charged particles
Answer:
its formed from non metal elements- i think
Explanation: its formed from non-metals and metals.
not sure tho
the element boron has two stable isotopes: boron-10 (10.0129 u) and boron-11 (11.0093 u). the periodic table reports a mass for boron as 10.811. what is the natural abundance of each boron isotope?
The natural abundance of 10B = 80.09 % and The natural abundance of 11B = 19.91%
The natural abundace can be calculated as follows:There are two naturally occurring isotopes of boron.
The mass of 10B is 10.0129 u.
The mass of 11B is 11.0093 u.
Average atomic mass of Boron = 10.811
10B has an abundance of X %
11B has an abundance of Y %
X+ Y = 1
X = 1 - Y
10.811 = 10.0129 x (1 - Y) + 11.0093*Y
10.811 = 10.0129 - 10.0129Y + 11.0093Y
0.7981 = 0.9964Y
Y = 0.8009 = 80.09 %
X = 1.0 - 0.8009 = 0.1991 = 19.91%
10.0129*0.1991+ 11.0093*0.8009 = 1.994 +8.817= 10.811
The natural abundance of 10B = 80.09 %
The natural abundance of 11B = 19.91%
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Our un i a tar that i fueled by a pecific type of nuclear reaction. Which type of nuclear reaction i thi
Our sun is a star that is fueled by a specific type of nuclear reaction. The type of nuclear reaction is Fusion.
When two atoms collide to create a heavier atom, such as when two hydrogen atoms combine to create one helium atom, this process is known as fusion. The Sun is a main-sequence star, and thus generates its energy by nuclear fusion of hydrogen nuclei into helium.
This process generates enormous amounts of energy, many times more than fission, and powers the sun. Furthermore, it doesn't generate radioactive fission products.
Scientists are studying fusion processes, but they are challenging to maintain for extended periods of time due to the extreme pressure and temperature required to fuse the nuclei together.
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Help me in chemistry pls
Last exercise
Ionic salt does not dissolve in mineral oil because Group of answer choicesa, solvent-solvent interactions are much larger than solute-solvent or solute-solute interactions.b, solute-solute interactions are much larger than solvent-solvent or solute-solvent interactions.c, solute-solvent interactions are similar to solvent-solvent and solute-solute interactions.d, solute-solvent interactions are much larger than solvent-solvent or solute-solute interactions.
Ionic salt does not dissolve in mineral oil because solute-solvent interactions are similar to solvent-solvent and solute-solute interactions.
Ionic salts are unable to dissolve in mineral oil due to the nature of the interactions between solute and solvent. Specifically, solute-solvent interactions are very similar to both solvent-solvent and solute-solute interactions.
Thus, when the ionic salt and mineral oil come in contact, they do not interact strongly enough for the salt to dissolve. Additionally, the solubility of ionic salts in mineral oil is extremely low due to the difference in the polarity of the two components. Therefore, when dealing with ionic salt and mineral oil, the salt does not dissolve in the oil.
Hence, the correct option is "C".
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Use a periodic table to answer the following questions.
a. Fluorine gas consists of diatomic molecules of uorine (F2). How many molecules of uorine are in one mole of uorine?
b. What is the mass of 1 mole of uorine gas?
c. How many atoms of uorine are in this sample? Show your work.
One mole of fluorine gas consists of Avogadro's number (6.022 x 10^23) of fluorine molecules. Each molecule of fluorine consists of two atoms of fluorine, so there are a total of 2 x 6.022 x 10^23 = 1.204 x 10^24 atoms of fluorine in one mole of fluorine gas.
Calculate the mass of 1 mole of fluorine gas?The atomic mass of fluorine is 19.00 g/mol, so one mole of fluorine gas has a mass of 19.00 g.
How many fluorine atoms are in this sample?To find the number of atoms in a sample of fluorine gas, we need to know the number of moles of fluorine in the sample. If the sample has a mass of m grams, then the number of moles of fluorine in the sample is m/19.00. The number of atoms in the sample is then given by the number of moles multiplied by Avogadro's number.
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____________ in our food are broken down into smaller pieces
Answer:
digestion.
Explanation:
14.18 explain how you would distinguish between each pair of compounds using mass spectrometry.
Mass spectrometry (MS) is a technique used to identify and quantify the composition of a sample based on its mass-to-charge ratio.
The following is a general explanation of how you would distinguish between pairs of compounds using mass spectrometry:
Ethanol and dimethyl ether: Both compounds have similar molecular weights, but they have different fragmentation patterns in the mass spectrometer. Ethanol will produce a series of peaks corresponding to its molecular ion and various fragment ions, while dimethyl ether will produce a different set of peaks.
Methane and ethane: Both compounds have similar molecular weights and are both composed of only carbon and hydrogen. However, ethane has one more carbon atom than methane, which results in a different fragmentation pattern in the mass spectrometer. Methane will produce a series of peaks corresponding to its molecular ion and various fragment ions, while ethane will produce a different set of peaks.
Propane and butane: Both compounds are composed of three and four carbon atoms, respectively, and have similar molecular weights. However, they have different fragmentation patterns in the mass spectrometer due to their different carbon skeletons. Propane will produce a series of peaks corresponding to its molecular ion and various fragment ions, while butane will produce a different set of peaks.
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The given question is incorrect. The correct question is given as:
Explain how you would distinguish between each pair of compounds using mass spectrometry. A) Ethanol and dimethyl ether B) Methane and ethane C) Propane and butane.
a cylinder contains 3.00 mol of an ideal gas. by moving a piston inside the cylinder, the volume of the gas is reduced to one-fourth its initial value, while the temperature is held constant. how many moles of the gas must be allowed to escape the cylinder, so that the pressure of the gas does not change?
The number of moles of gas that must be allowed to escape the cylinder is 2.25 moles, in order for the pressure of the gas not to change.
The problem asks us to determine the number of moles of gas that must be allowed to escape a cylinder in order to maintain constant pressure, given that the volume of the gas has been reduced to one-fourth of its initial value while the temperature is held constant.
We can use the Ideal Gas Law to solve this problem: PV = nRT, where
P is the pressureV is the volumen is the number of molesR is the ideal gas constantT is the temperatureSince the temperature is constant, we can write the initial pressure and final pressure as:
Initial pressure, P1 = nRT/V1 Final pressure, P2 = nRT/V2Since the pressure does not change, P1 = P2, so we can equate the two expressions for pressure:
nRT/V1 = nRT/V2
Dividing both sides by nRT, we get:
V1/V2 = n1/n2 where,
n1 is the initial number of moles n2 is the final number of moles.We know that V2 = V1/4 and n1 = 3.00 mol, so we can substitute these values into the equation:
V1/V2 = n1/n2
4 = n1/n2
n2 = n1/4
n2 = 3.00 mol / 4
n2 = 0.75 mol
So the final number of moles in the cylinder is 0.75 mol, which means that 2.25 mol of gas must be allowed to escape from the cylinder in order to maintain constant pressure.
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if you have 16.9 g of frozen water, what amount of energy is required to melt it? δhfus = 6.01 kj/mol
The amount of energy required to melt 16.9 g of frozen water is 5.63 KJ. Water exists as frozen, solid ice. Cold weather frequently causes lakes, rivers, and the ocean to freeze.
When liquid or gaseous water freezes, it turns into ice, a solid substance. At temperatures below 0 °C (32 °F), water vapor transforms into frost at ground level and snowflakes (each of which is made up of a single ice crystal) in clouds.
The heat of fusion for frozen water (ice) = 6.01 KJ/mol
The no. of moles of ice = 16.9 g/18 g mol-1 = 0.93889 mol
Therefore, the amount of energy required to melt 16.9 g of frozen water = 6.01 KJ/mol * 0.93889 mol = 5.643 KJ
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An object has a mass of 5.4g and is 2.2cm long 1.7cm high and 0.8 cm wide what is the density will it float on water:
The density of an object is its mass divided by its volume. To find the volume of the object, we can use the formula for the volume of a rectangular prism:
V = l * w * h
Where:
V = Volume
l = length
w = width
h = height
In this case:
V = 2.2cm * 0.8cm * 1.7cm = 2.976 cm^3
To convert the mass from grams to grams per cubic centimeter, we need to convert the volume from cubic centimeters to cubic meters.
1cm^3 =10^-6 m^3. so 2.976cm^3 = 2.976*10^-6 m^3
So the density of the object is:
density = mass/volume = 5.4g / 2.976*10^-6 m^3 = 1817.5 kg/m^3
Now we can compare the density of the object to the density of water which is 1000 kg/m^3.
Since the density of the object is greater than the density of water, the object will not float on water.
when devising a solution, you should consider what kind of undesirable results the proposed solution might have. what can you create to reverse your c
When you've found a solution you'd like to use, you should take the necessary measures to make a rollback plan, which enables you to revert back to the situation before the solution was used, just in case.
Saving all network device configuration files, documenting and backing up workstation settings, and documenting wire closet configurations are all possible components of a rollback strategy.
Because it reduces collisions and frame retransmissions, full-duplex Ethernet is faster than half-duplex. The separation of sending and receiving operations results in a system with maximum data capacity in both directions. Half-duplex, on the other hand, can be utilized to save bandwidth.
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Which Of The Following Acids Can Be Oxidized To Form A Stronger Acid? H3PO4 HNO3 H2CO3 H3BO3 H2SO3
HNO3 (Nitric Acid) can be oxidized to form a stronger acid, HNO4 (nitrate ion). Nitric acid completely ionizes into nitrate (NO₃⁻) and hydronium (H₃O⁺) ions in aqueous solutions.
Nitric acid, which has the inorganic chemical formula HNO3, is a material. It is an exceedingly corrosive mineral acid. The material has no discernible colour, however older samples frequently have a yellowish tint due to the breakdown into nitrogen oxides. The volume of water in the nitric acid that is for sale on the market is 68%. If the concentration of HNO3 in the solution exceeds 86%, it is referred to as "fuming nitric acid." Nitric acid that fumigates can also be categorized as red-fuming nitric acid at concentrations above 86% or white-fuming nitric acid at concentrations over 95%. Based on the concentration of nitrogen dioxide, this differentiation is made.
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Lithium stearate (octadecanoate) is made by neutralising stearic acid (octadecanoic
acid) with lithium hydroxide.
CH,(CH₂) 16COO Li* + H₂O
LiOH + CH,(CH₂) 16COOH
It is used as a component of low melting point greases that can be used down to
-60°C. In an experiment, 0-048 mole of stearic acid was neutralised by a lithium
hydroxide solution of concentration 0-64 mol dm
Calculate the volume of this lithium hydroxide solution needed to neutralise the
0-048 mole of stearic acid.
[2]
0.048 mole of
Stearic acid
Conc of LOH = 0.64 moi dm
-3
R = 1:1
:: 0.048 =
(1
clu
0.048
0.64
LOH Mole
=
0.075 dm-3
0.075
Explanation:
Yes, that is correct. The formula weight of a compound is the sum of the atomic weights of all the atoms in the compound's chemical formula. To determine the percentage by mass of an element in a compound, you can use the molar mass of that element and divide it by the formula weight of the compound, then multiply by 100. In the case of a hydrated compound, the mass of the water molecules will dilute the percentage of the other elements, resulting in a lower percentage for the element of interest.
How do you write the electron configuration for Ni^(+2)?
The electron configuration for Ni^(+2) is written as follows: 1s^2 2s^2 2p^6 3s^2 3p^6 3d^8
What are the three principles for arranging electrons?When writing electronics setup, there are three guidelines to follow: the Aufbau idea, The Pauli exclusion rule, and Hound's Law.
What determines an element's electron configuration?The scattering of electrons in an element's atomic orbitals is represented by the element's electron configuration. Atomic electron configurations adhere to a standard notation in which all atomic subshells that contain electrons are organized in a sequence with the number of electrons they individually hold given in superscript.
What are KLMN and SPDF?The KLMN and SPDF differ in that K represents for the first shell or energy level, L for the second shell, M for the third shell, and so on. In other words, each main quantum number in the KLMN notation simply represents the amount of electrons that an atom carries. Each shell is separated into its subshells according to the SPDF notation.
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Which of the following is the definition of the base peak of a mass spectrum? a. the peak corresponding to the most abundant ion b. the peak corresponding to the ion with lowest m/e c. the peak corresponding to the molecular ion peak d. the peak corresponding to the ion arising to loss of a proton from the molecular ion
The definition of the base peak of a mass spectrum is "the peak corresponding to the most abundant ion". So the correct option is "a".
In a mass spectrum, the base peak is the peak that corresponds to the most abundant ion. It is the highest peak in the spectrum and represents the most abundant species of ion in the sample being analyzed.
A mass spectrum is a graphical representation of the distribution of ions by their mass-to-charge (m/e) ratios. The m/e ratio is the ratio of the mass of an ion to its charge, and is used to identify different ions in a sample.
The base peak is an important feature of the mass spectrum as it provides information on the identity and relative abundance of the most abundant species in the sample.
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The chemical safety board does not have the authority. True or False
False. The Chemical Safety Board (CSB) does have the authority.
The CSB is an independent federal agency that was established in 1998 to investigate industrial chemical accidents. The CSB has the authority to investigate chemical incidents and accidents involving industrial chemicals, and it is charged with determining the root causes of these incidents and making recommendations to prevent similar incidents in the future.
The CSB has the authority to gather information, interview witnesses, and review documents and other evidence in order to complete its investigations. It also has the authority to issue findings and recommendations, which are widely distributed and widely used by industry, labor, government, and other stakeholders to improve the safety of industrial chemical processes.
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what is the highlighted 2 in this portion of a chemical reaction called? 3h20
The "2" in the chemical formula "3H2O" is called the coefficient.
In a chemical reaction, the coefficients indicate the number of molecules or atoms of a particular element that are involved in the reaction. In this case, the coefficient "2" in front of the "H2O" in the chemical formula "3H2O" indicates that there are two water molecules (H2O) in the reaction.
Coefficients play an important role in chemical reactions because they help to balance the equation, ensuring that there is the same number of atoms of each element on both the reactant and product sides of the equation. They also help to indicate the relative amounts of each substance involved in the reaction.
In conclusion, the "2" in "3H2O" is a coefficient, which helps to describe the number of water molecules involved in a chemical reaction, and to balance the equation. Understanding the role of coefficients in chemical reactions is important for correctly interpreting chemical formulas and reactions and for understanding the underlying principles of chemistry.
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what is the rms speed of nitrogen molecules contained in an 8.2- m3 volume at 3.9 atm if the total amount of nitrogen is 2000 mol ?
Answer: 91910212823932
Explanation:
What is an example of making an inference to support comprehension? In three to five sentences, explain your answer.
For example, a student looking at the picture of the baby could state the obvious by saying the baby is crying. However, a correct inference might include that the baby is tired or hungry. Using background knowledge of why babies cry, combined with the details in the picture makes this a plausible inference
What is inference ?An inference is a conclusion that has been drawn using logic and supporting data. For instance, you can conclude that someone does not like their lunch if you see them making a disgusted expression after they've eaten it.
The process of selecting the hypothesis or theory that best explains the information given is known as inference to the best explanation. One explanation may be superior to another based on its depth, completeness, simplicity, and uniting force.
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A tablet weighing 0.940 g was dissolved in dilute sulphuric acid made up to 250cm^3 with water. 25.0 cm^3 of this solution was titrated with 0.00160m K2Cr2O7 requiring 32.5 cm^3 of the K2Cr 2O7. Calculate the percentage by mass of Fe2+ inthe tablet
The percentage by mass of Fe2+ in the tablet is approximately 28.4%.
To calculate the percentage of Fe2+ in the tablet, you will first need to determine the number of moles of Fe2+ present in the 25 cm^3 of solution. This can be done using the balanced equation for the reaction between Fe2+ and K2Cr2O7:
Fe2+ + K2Cr2O7 + H2SO4 → Fe2(SO4)3 + K2SO4 + Cr2(SO4)3 + H2O
From this equation, you can see that for every mole of Fe2+ present in the solution, one mole of K2Cr2O7 is required for complete reaction. Thus, the number of moles of Fe2+ present in the solution can be calculated as follows:
n (Fe2+) = n (K2Cr2O7) = 32.5 cm3 × 0.00160 mol/cm3 = 0.0520 mol
Next, you need to determine the mass of Fe2+ present in the solution. This can be done using the molar mass of Fe2+ (55.85 g/mol) and the number of moles calculated above:
mass (Fe2+) = n (Fe2+) × molar mass (Fe2+) = 0.0520 mol × 55.85 g/mol = 2.9107 g
Finally, you can calculate the percentage by mass of Fe2+ in the tablet as follows:
percentage (Fe2+) = (mass (Fe2+) / mass (tablet)) × 100% = (2.9107 g / 0.940 g) × 100% = approximately 28.4%.
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how would you make 1.5 ml of a 20 mg/ml solution of bromophenol blue (m.w. = 373.9 g/mol
To make bromophenol blue, we need to add 0.03 g of bromophenol blue to 1.5 ml of solvent and mix until the bromophenol blue is fully dissolved.
To make 1.5 ml of a 20 mg/ml solution of bromophenol blue, you need to dissolve 20 mg of bromophenol blue in 1.5 ml of solvent. Here is a detailed solution:
1. Calculate the amount of bromophenol blue needed:
20 mg/ml x 1.5 ml = 30 mg
2. Convert the amount from milligrams to grams:
30 mg / 1000 = 0.03 g
3. Weigh out the necessary amount of bromophenol blue using a analytical balance:
0.03 g of bromophenol blue
4. Transfer the weighed bromophenol blue to a clean, sterile vial.
5. Add the desired volume of solvent (e.g. water, buffer, etc.) to the vial containing the bromophenol blue.
6. Use a micropipette to accurately measure 1.5 ml of solvent.
7. Add the 1.5 ml of solvent to the vial containing the bromophenol blue.
8. Close the vial and mix the contents well to ensure that the bromophenol blue is fully dissolved. You can use a vortex mixer or pipette the solution up and down a few times.
9. Store the solution at the desired temperature (e.g. room temperature or 4°C) and in the dark if needed.
Note: If the bromophenol blue does not dissolve fully, you can try heating the solution or adding more solvent. The final solution should be clear and not contain any visible particles.
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how many moles of perchlorate ions are in 81.1 ml of 1.647 m magnesium perchlorate? enter to 4 decimal places.
The approximately 0.1344 moles of perchlorate ions in 81.1 mL of 1.647 M magnesium perchlorate solution. (Rounded to 4 decimal places).
The perchlorate ions are in 81.1 ml of 1.647 m
To find the number of moles of perchlorate ions in 81.1 mL of 1.647 M magnesium perchlorate solution, we can use the formula:
A mole is defined as the mass of the substance which consists of the equal quantity of basic units.
Number of moles = concentration (M) * volume (L)Where n = number of moles and V is volume (in liters, L, or cubic decimeters).
First, we need to convert the volume from mL to L, so we divide by 1000:
81.1 mL ÷ 1000 mL/L = 0.0811 L
Next, we multiply the concentration by the volume:
0.0811 L * 1.647 M = 0.1344 moles
So,
Therefore, the approximately 0.1344 moles of perchlorate ions in 81.1 mL of 1.647 M magnesium perchlorate solution. (Rounded to 4 decimal places)
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Identify the splitting pattern for a CH3 in an off-resonance decoupled 13C NMR spectrum.
Question 5 options:
a) doublet
b) singlet
c) triplet
d) no peak
e) quartet
The splitting pattern for CH3 in OFF resonance be coupled c13 NMR will be quadrate thus option C is correct.
Because in case of of resonance de coupling the bond of c and h atom remains so the signal for that particular item is given by the n + 1 rule. Through a phenomenon known as spin-spin splitting, neighboring hydrogen atoms are responsible for these numerous peaks.
In NMR spectroscopy, a quartet is a split signal made up of four closely spaced lines. A quartet (4 peaks) would so result from three hydrogen atoms that are close neighbors. Usually, but not always, the neighboring hydrogens are on the same carbon. A quartet typically comes from a CH3 that is next to it, although it can also come from a CH2 and a CH.
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complete each row of the table below by filling in the missing prefix or missing exponent
Based on the idea of a conversion factor, the following question
- 1 KL is equal to 10³ L, 1 cL is 10⁻³ L, 1 D is 10L⁻², and 1 n is 10⁻⁹ L.
What is the conversion factor?An expression expressing the relationship between units, a conversion factor, can be used to change the units of a measured amount without altering the value.
When expressed in different units, a conversion ratio's numerator and denominator always have the same value, and the ratio itself is always equal to one (1).
In light of this, the fully filled table is provided as follows:
1 KL = 10³ L,
1cL = 10⁻³ L,
1dL = 10⁻² L,
1 nL = 10⁻⁹ L
Where,
Kilolitres are written KL, centiliters are CL, deciliters are DL, and nanoliters are NL.
Based on the idea of a conversion factor, the following question
1 KL is equal to 10³ L, 1 cL is 10⁻³ L, 1 D is 10L⁻², and 1 n is 10⁻⁹ L.
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in the haber process for the production of ammonia, n2 1 g2 1 3h2 1 g2 h2nh3 1 g2 what is the relationship between the rate of production of ammonia and the rate of consumption of hydrogen?
The rate of production of ammonia in the Haber Process is directly proportional to the rate of consumption of hydrogen.
This is because the reaction is a one-to-one stoichiometric reaction, meaning for every mole of hydrogen consumed, one mole of ammonia is produced. Therefore, if the rate of consumption of hydrogen increases, the rate of production of ammonia will also increase.
This reaction is highly exothermic, meaning that it releases a large amount of energy when it occurs. This energy is used to drive the reaction forward, resulting in a high rate of production of ammonia. The rate of production of ammonia is directly proportional to the rate of consumption of hydrogen, since the two reactants are consumed on a one-to-one stoichiometric ratio.
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A Grignard reaction will fail in the presence of which species?A diethyletherBalkenesC aromatic groupsD water
Water is the species in the presence of which the Grignard reaction will fail because the Grignard reagent will get destroyed after it reacts with acidic hydrogen atoms of water.
Hence, D. water is the correct option.
Grignard reaction is a very crucial reaction for the formation of the carbon-carbon bonds. It is basically categorized as an organometallic chemical reaction which involves the use of a Grignard reagent. A Grignard reagent is basically the vinyl, allyl, alkyl, or aryl-magnesium halides. It is reacted with a particular carbonyl group present in an aldehyde or in a ketone.
Grignard reaction fails in the presence of water as the Grignard reagent tends to get destroyed when it happens to react with the acidic hydrogen atoms which are present in the water, alcohols, phenols or in the carboxylic acid groups
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Lucite contains 59.9 g C, 8.06 g H,
and 32.0 g O. You want to determine the empirical formula.
How many moles of H are in the sample?
[?] mol H
Empirical formula is the simplest whole number ration of elements in a compound. Molecular formula is n times the empirical formula, where n is integers 1,2,... The empirical formula is CH[tex]_2[/tex]O.
What is Empirical formula?
Empirical formula gives the proportion of the element that is present in a compound. It does not give information about the actual number or the arrangements of the atoms.
Number of gram atoms in compound and divide by smallest Number of gram atoms in compound
C=(38.7%)÷12=3.2
H=(9.6%)÷1=9.6
O=( 51.6%)÷16=3.2
The atomic ratio is 3.2:9.6:3.2
Whole number C:H:O is1:2:1
Empirical formula corresponding to this whole number is CH[tex]_2[/tex]O.
Thus the empirical formula is CH[tex]_2[/tex]O.
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