A combustion reaction is a type of chemical reaction that involves the rapid combination of fuel (typically a hydrocarbon) with oxygen, resulting in the release of energy in the form of heat and light.
Combustion reactions are often characterized by the presence of a flame and the production of carbon dioxide (CO₂) and water (H₂O) as products.
In the given balanced combustion reaction:
C₂H₂ + 5O₂ → 4H₂O + 2CO₂
The stoichiometric ratio indicates that 1 mole of C₂H₂ reacts with 2 moles of CO₂ produced. Therefore, if 4.44 moles of C₂H₂ react, we can calculate the moles of CO₂ produced using the ratio:
Moles of CO₂ = (4.44 mol C₂H₂) × (2 mol CO₂ / 1 mol C₂H₂)
Moles of CO₂ = 8.88 mol
Therefore, 8.88 moles of CO₂ will be produced in the combustion reaction.
For more details regarding combustion reaction, visit:
https://brainly.com/question/14335621
#SPJ1
water can be made using the reversible reaction shown, which change would kee
p this reaction from shifting to form more of the product?
We can produce more products by;
A. Increasing the concentration of H₂ gas in the reaction vessel
B. Decreasing the temperature in the reaction vessel
C. Removing the H₂O from the reaction vessel as it forms
Is formation of water an exothermic reaction?
Water is created through an exothermic process. Heat energy is released when hydrogen gas (H2) and oxygen gas (O2) mix to make water (H2O). An exothermic reaction is characterized by this energy release.
The reaction's overall energy change is negative, which shows that energy is released. The reaction is exothermic because the extra energy is released as heat into the environment.
Learn more about exothermic reaction:https://brainly.com/question/28546817
#SPJ1
Missing parts;
Water can be made using the reversible reaction shown. Which change would
keep this reaction from shifting to form more of the product?
2H₂+022H₂O + energy
A. Increasing the concentration of H₂ gas in the reaction vessel
B. Decreasing the temperature in the reaction vessel
C. Removing the H₂O from the reaction vessel as it forms
D. Increasing the temperature in the reaction vessel
Heidi has three liquids in separate beakers, but they are only labeled as beaker 1, 2, and 3. Her teacher gives her a chart of some characteristics of the three liquids and asks her to determine whether the liquids in the beakers are basic, acidic, or neutral. Which beaker holds an acidic substance? Beaker Taste Reacts with Metals? pH 1 - no 7.0 2 sour yes 5.4 3 bitter no 11.7 A. beaker 2 B. beaker 3 C. beaker 1 D. all of these
The beaker that holds an acidic substance based on the above criteria is beaker 2 (option A).
What is an acid?A substance is said to be acidic when it has a pH less than 7, or being sour, or having the strength to neutralize alkalis, or turning a litmus paper red.
According to this question, Heidi has three liquids in separate beakers, but they are only labeled as beaker 1, 2, and 3.
Her teacher gives her a chart of some characteristics of the three liquids and asks her to determine whether the liquids in the beakers are acidic.
Based on the characteristics given to her, beaker 2 can be said to be acidic because it has a pH of 5.4 (less than 7), is sour to taste and can react with metals.
Learn more about acids at: https://brainly.com/question/1515003
#SPJ1
ORDS ONLY. 71.A broad, painless, pink-gray, wart like infectious lesions may develop on the vulva, perineum, or anus in syphilis is called----- 72. In suspected syphilis infection the term RPR stands for? 73. The recommended dosage of Benzathine Penicillin in an adult in Zambia is je 74. The recommended drug for treatment of gonorrhea when using syndromic management is 75. The causative organism for chancroid is called- 76. The commonest type of HIV is 77.The assertive, problem solving approach to identification and treatment of the patient's problems is called --- 78. A tumour arising from the cells producing melanin is also known as 1 79. The type of sound described as drum like, loud, empty quality felt over gas-filled stomach, intestine or pneumothorax which is heard during percussion is called host wall into the pleural space to obtain
71. The broad, painless, pink-gray, wart-like infectious lesions that may develop on the vulva, perineum, or anus in syphilis are called "condyloma lata."
72. In suspected syphilis infection, the term RPR stands for "Rapid Plasma Reagin." It is a blood test used to screen for syphilis.
73. The recommended dosage of Benzathine Penicillin in an adult in Zambia may vary depending on the stage and severity of the syphilis infection. It is best to consult local guidelines or a healthcare professional for the specific recommended dosage in Zambia.
74. The recommended drug for the treatment of gonorrhea when using syndromic management may vary depending on local guidelines and antibiotic resistance patterns. Commonly used antibiotics include ceftriaxone in combination with azithromycin or doxycycline.
75. The causative organism for chancroid is called "Haemophilus ducreyi."
76. The commonest type of HIV is "HIV-1."
77. The assertive, problem-solving approach to the identification and treatment of the patient's problems is called "clinical decision-making."
78. A tumor arising from the cells producing melanin is also known as "melanoma."
79. The type of sound described as drum-like, loud, and empty quality felt over a gas-filled stomach, intestine, or pneumothorax during percussion is called "tympany."
To know more about melanoma:
https://brainly.com/question/14972277
#SPJ1
100 points help me asap!!!
When the acidic byproduct of plaque tears away at the teeth's enamel, demineralization of the teeth takes place.
Thus, Mineral molecules like calcium and phosphate give enamel, which is made of minerals, a lot of its strength and hardness.
When a tooth experiences tooth decay, the minerals inside it start to wear away (thus the term "demineralization") and render the tooth's enamel permeable, which can occasionally result in cavities or other dental problems.
Although the definition of bone demineralization may make you nervous, it actually happens naturally throughout the course of a tooth's lifespan.
Thus, When the acidic byproduct of plaque tears away at the teeth's enamel, demineralization of the teeth takes place.
Learn more about demineralization, refer to the link:
https://brainly.com/question/17794394
#SPJ1
What's the answer to this question?
Answer:
Pressure
Explanation:
Answer:
The solubility of a gas in a liquid would be increased by an increase in its pressure. Thus, Option D is correct.
Explanation:
According to Henry's law: The solubility of a gas in a liquid is directly proportional to the pressure of that gas above the surface of the solution.
Thus, as the pressure increases the solubility will also increase.
Avogadro's number, 6.022 x 1023, represents
Answer: One mole
Explanation: One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant.
Type of Isomery and Formula
Condesada
The type of isomerism shown is structural isomerism and the molecular formula of the compounds are as follows:
C₄H₈C₂H₆OC₄H₁₀What are isomers?Isomers are molecules that have the same molecular formula but differ in the arrangement or spatial orientation of atoms within the molecule. In simpler terms, isomers are compounds that have the same chemical formula but different structures.
Isomerism arises due to the different ways in which atoms can be connected or arranged within a molecule.
Learn more about isomers at: https://brainly.com/question/27794837
#SPJ1
Drag each tile to the correct box. Put the stages of the formation of a dead zone in their correct order
Answer:
1. Falling Oxygen Levels
2. Increased Pollution
3. Reduction in Aquatic life
4. Algae Bloom
1. Increased Pollution
2. Algae Bloom
3. Falling Oxygen Levels
4. Reduction in Aquatic Life
Explanation:
Calculate the heat energy of liquid mercury at 28900 °C is converted to solid mercury at its melting point.
The heat energy given off when liquid mercury at 28.9 °C is converted to solid mercury at its melting point is 284.2 J.
What is the heat energy given off when liquid mercury at 28.9 °C is converted to solid mercury at its melting point?The heat energy given off when liquid mercury at 28.9 °C is converted to solid mercury at its melting point is determined as follows:
Moles of Mercury:
14.0 g Hg x 1 mol Hg/201 g = 0.0697 moles
Heat released:
q = heat = m x C x ∆T
25ºC = 298.15K
25ºC = 298.15K
∆T = 234.32 K- 298.15 K
∆T = 63.83 K
q = (0.0697 mol)(28.0 J/molK)(63.83K) = 124.6 J
The heat released from liquid to solid:
q = m x ∆H fusion = (0.0697 mol)(2.29 kJ/mol)
q = 0.1596 kJ
q = 159.6 J
The total heat energy is given off:
Qtotal = 124.6 J + 159.6 J
Qtotal = 284.2 J
Learn more about heat energy at: https://brainly.com/question/934320
#SPJ1
Complete question:
Calculate the heat energy released when 14.0 g of liquid mercury at 28.9 °C °C is converted to solid mercury at its melting point.
what would the pressure be at 25.0g of chlorine gas at "-10.0celsius" in a 4.50 L
The pressure of the chlorine gas at the given condition is 1.7 atm.
What is the pressure of the chlorine gas?The pressure of the chlorine gas at the given condition is calculated by applying ideal gas law.
PV = nRT
where;
n is the number of molesR is the ideal gas constantT is the temperatureThe number of moles of 25 g of chlorine is calculated as follows;
n = m/M
n = 25/71
n = 0.352
The pressure of the chlorine gas at the given condition is calculated as;
P = nRT/V
P = (0.352 x 0.0821 x 263) / (4.5)
P = 1.7 atm
Learn more about pressure of gas here: https://brainly.com/question/25736513
#SPJ1
100 points!! Help me asap
Teeth can suffer a great deal from percolation. First of all, percolation gives germs a chance to assault your tooth from within by getting past the enamel, which serves as the primary layer of defense.
Thus, Bacteria might get to your dentin by moving along the dental filling. In fact, dentin is porous and contains microscopic tubules that connect to the tooth pulp.
These could operate as entry points for bacteria to reach your pulp, where they could lead to illnesses that call for either a root canal or tooth extraction.
Even if oral germs don't directly reach the tooth pulp, the dentin is far more susceptible to injury. It's not intended to guard against tooth decay, and acid produced by your mouth can swiftly dissolve it.
Thus, Teeth can suffer a great deal from percolation. First of all, percolation gives germs a chance to assault your tooth from within by getting past the enamel, which serves as the primary layer of defense.
Learn more about Tooth pulp, refer to the link:
https://brainly.com/question/13064235
#SPJ1
A gas occupies 15.2 liters at 0.960 atm. What is the pressure if the volume becomes 35.0 L?.0 mm Hg. What is the volume when the pressure is increased to 90.0 mm Hg?
When the pressure is increased to 90.0 mm Hg, the volume will be approximately 12.30 liters.
To solve this problem, we can use Boyle's Law, which states that the pressure and volume of a gas are inversely proportional at constant temperature.
Initial conditions:
Volume (V1) = 15.2 liters
Pressure (P1) = 0.960 atm
New conditions:
Volume (V2) = 35.0 liters
Pressure (P2) = 90.0 mm Hg
First, we need to convert the pressure from mm Hg to atm:
P2 = 90.0 mm Hg * (1 atm / 760 mm Hg) = 0.1184 atm
Now we can apply Boyle's Law:
P1 * V1 = P2 * V2
0.960 atm * 15.2 L = 0.1184 atm * V2
V2 = (0.960 atm * 15.2 L) / 0.1184 atm
V2 ≈ 12.30 L
Learn more about Boyle's Law, here:
https://brainly.com/question/21184611
#SPJ1
Which of the following carbocations is(are) likely to undergo a rearrangement?
A. only I
B. I and III
C. II and III
D. I, II, III
The cations that are more likely to undergo rearrangement are II and III Option C
Why does cations undergo rearrangement?
Cation rearrangement is a phenomena that causes cations, which are positively charged ions, to reorganize themselves under specific conditions. The term "cation rearrangement " describes the movement of ions inside a substance or solution that is caused by a variety of elements, including concentration gradients, electric fields, or chemical reactions.
Rearrangements influence the mobility and redistribution of cations inside substances or solutions, which can have a significant impact on the system's behavior and characteristics.
Learn more about cation rearrangement:https://brainly.com/question/32195409
#SPJ1
Report the following measurement using the correct number of significant figures.
The measurement can be reported with three significant figures as follows: 3.90 mm.
How to report the measurementThe measurement can be reported with three significant figures as 3.90 mm. The record is a reading from a ruler that shows the specific point where the red line meets and the exact measurement is in three significant figures because none of them can be disregarded.
So, the accurate reading is 3.90. When the accurate reading is used, it ensures that the result of the measurement will be as expected.
Learn more about measurements here:
https://brainly.com/question/27233632
#SPJ1
The following set of reactions show
burning hydrogen and the reverse
process, electrolysis of water. What is
the missing change in enthalpy? Only
put in the numerical value. (The bond
energy of H-H is 432 kJ/mol was used
in the first equation. Other bond
energies are on this form, IF you need
it.)
_2_H₂ + _1_0₂_2_H₂O
_2_H₂O →_2_H₂ +_1_O₂
1 point
AH-498 kJ/mol
AHon
= ??? kJ/mol
In the given reaction, the missing change in enthalpy for the reverse process is +498 kJ/mol.
In the reaction first, the burning of hydrogen (H₂) to form water (H₂O), the change in enthalpy is equivalent to -498 kJ/mol.
Using this information, it is possible to find the missing change in enthalpy for the reverse, that is, the electrolysis of water.
The reverse reaction can be expressed as:
2 H₂O → 2 H₂ + O₂
To determine the change in enthalpy for this reaction, it is required to consider the opposite sign of the enthalpy change from the first reaction.
Thus, the missing change in enthalpy for the reverse process is: -498 kJ/mol) = +498 kJ/mol.
Learn more about enthalpy, here:
https://brainly.com/question/29145818
#SPJ1
Plants use sunlight to produce some ATP during photosynthesis. How do plants produce ATP when the Sun is not out?
Plants are secondary consumers.
Plants also use cellular respiration.
Plants extract ATP from the stars.
Plants are weak in the dark.
Answer:
The answer is
Plant also use cellular respiration
Answer:
B - Plants also use cellular respiration.
Explanation:
Did the test.
how many moles of oxygen are in 0.2 g of aspirin, C,H, 0,?
The number of the atoms of oxygen that we have is 3.97 * 10^21 atoms.
What is the number of moles of oxygen in aspirin?Mole is a unit of measurement used to quantify the amount of a substance. It is a fundamental concept in the field of chemistry and plays a crucial role in stoichiometry, which is the study of the quantitative relationships between substances involved in chemical reactions.
We have to note that we have 0.2 g of the aspirin and the number of moles of the aspirin would be given as;
Moles = 0.2 g/180 g/mol
= 0.0011 moles
Then we have that the number of the atoms of oxygen is;
6 * 0.0011 * 6.02 * 10^23
= 3.97 * 10^21 atoms
Learn more about moles:https://brainly.com/question/30885025
#SPJ1
Write a short essay describing the six key features of Mesopotamia. Be sure to include how it advanced human society as a whole.
The ancient nation of Mesopotamia, which was located between the Euphrates and Tigris rivers, has six essential characteristics: specialisation, administration, cities, religion, trade, and written records. Specialisation produced skilled people and stimulated the economy.
Kings and other administrative personnel first appeared in city-states. Cities served as hubs for social, political, and economic activity. The polytheistic religion practised by Mesopotamians included priests and temples. Due to the position of the area, trade flourished.
The Hammurabi Code and other written texts provide government and historical documentation.Commerce: Mesopotamia's advantageous position cultivated strong commerce networks, encouraging the interchange of products and ideas with nearby areas.
Written Records: Mesopotamia invented writing systems like cuneiform that were used to record historical events, produce literature, and preserve records. The Hammurabi Code is a well-known illustration.These characteristics jointly influenced Mesopotamian civilization's growth and had a long-lasting effect on succeeding cultures.
Learn more about Mesopotamia at:
https://brainly.com/question/438594
#SPJ1
A 0.750 M Ca(OH)2 solution was prepared by dissolving 48.0 grams of Ca(OH)2 in enough water. What is the total volume of the solution formed?
The total volume of the solution prepared by dissolving 48.0 grams of Ca(OH)₂ in enough water is 0.865 L
How do i determine the volume of the solution?First, we shall obtain the mole of 48.0 grams of Ca(OH)₂. This is shown below:
Mass of Ca(OH)₂ = 48.0 grams Molar mass of Ca(OH)₂ = 74 g/mol Mole of Ca(OH)₂ =?Mole = mass / molar mass
Mole of Ca(OH)₂ = 48 / 74
Mole of Ca(OH)₂ = 0.649 mole
Finally, we shall obtain the total volume of the Ca(OH)₂ solution. Details below:
Molarity of solution = 0.750 MMole of Ca(OH)₂ = 0.649 moleVolume of solution =?Volume = mole / molarity
Volume of solution = 0.649 / 0.750
Volume of solution = 0.865 L
Thus, we can conclude that the total volume of the solution is 0.865 L
Learn more about volume:
https://brainly.com/question/29144710
#SPJ1
what is the pH of a solution with a hydronium concentration of 6.5x10^-4M?
A.)6.5
B.)4
C.)3.2
D.)10
To determine the pH of a solution based on the hydronium ion concentration, you can use the equation:
pH = -log[H₃O⁺]
where [H₃O⁺] is the concentration of hydronium ions.
In this case, the hydronium ion concentration is 6.5x10^-4 M.
Calculating the pH:
pH = -log(6.5x10^-4)
= -log(6.5) - log(10^-4)
= -log(6.5) + 4
Using a calculator or logarithmic tables, you can find that the logarithm of 6.5 is approximately 0.81.
pH ≈ 0.81 + 4
pH ≈ 4.81
Rounding to the nearest whole number, the pH of the solution is approximately 5.
Learn more about pH on:
https://brainly.com/question/2288405
#SPJ1
The graph shows five data points collected in an investigation of the relationship between the concentration of alcohol dissolved in water and its density. The relationship was expected to be linear. Which of the data points most likely resulted from an error in procedure? a 1 b 2 c 4 d 5
In comparison to modern, highly accurate density meters or pycnometers, hydrometers are far less accurate and temperature.
Thus, Although they require very large sample sizes, hydrometers are rather simple to operate. Usually, 300 to 500 ml per measurement are required. Hydrometers frequently require calibration off-site as well.
With measurements taken by eye, user error is a major issue, and temperature management is especially challenging. Inaccurately bringing and maintaining samples at temperature might take a long time, and once more, user perception of temperature levels is used to determine temperature levels.
Pycnometers and hydrometers have a further problem in that the findings of alcohol measurement are challenging to evaluate and record.
Thus, In comparison to modern, highly accurate density meters or pycnometers, hydrometers are far less accurate and temperature.
Learn more about Temperature, refer to the link:
https://brainly.com/question/7510619
#SPJ1
How many milliliters of 0.100 M NaOH is needed to titrate 20.0 mL of 0.100 M HNO3
?
The amount of volume of NaOH that is needed to titrate 20.0 mL of 0.100 M nitric acid is 20mL.
How to calculate volume?The amount of volume needed to titrate a substance can be calculated using the following formula;
CaVa = CbVb
Where;
Ca and Va = concentration and volume of acidCb and Vb = concentration and volume of baseAccording to this question, a 0.100 M NaOH is needed to titrate 20.0 mL of 0.100 M of nitric acid. The volume needed for this titration can be calculated as follows;
0.100 × 20 = 0.100 × Vb
2 = 0.100Vb
Vb = 20mL
Learn more about volume at: https://brainly.com/question/30480610
#SPJ1
A 898.3 g sample of sodium experiences a temperature change of +301.11 K. The specific heat capacity of sodium is 1.23 J/(g-K). How many joules of heat were transferred by the sample?
The amount of heat transferred to the sample of sodium is 332,699.149.
How to calculate heat?The amount of heat absorbed or released by a substance can be calculated using the following formula;
Q = mc∆T
Where;
Q = quantity of heat absorbed or releasedm = mass of substancec = specific heat capacity∆T = change in temperatureAccording to this question, 898.3g sample of sodium experiences a temperature change of +301.11 K. The specific heat capacity of sodium is 1.23 J/(g-K).
Q = 898.3 × 1.23 × 301.11
Q = 332,699.149 J
Learn more about heat at: https://brainly.com/question/9588553
#SPJ1
other m Ammonium nitrate decomposes to nitrogen(1) oxide and water. 9. Some oxides of nitrogen are atmospheric pollutants. and oxygen. Revision Exercise When compound X is heated, a red-brown gas is evolved and a yellow residue is left on cooling. Name: (i) The red-brown gas. (ii) The ions present in the residue. (ui) Compound X.
We can determine the following based on the provided information:
Metal nitrate A is a compound that, when heated, transforms into colourless gas, brown gas B, and a metal oxide with a yellowish brown hue. B. C: Colourless petrol C. B: Brown petrol C. D: Compound D, a yellow precipitate produced by the reaction of potassium iodide with an aqueous solution of compound A.
We may deduce that A is probably lead nitrate (Pb(NO3)2) because lead is frequently used in soldering alloys and the metal contained in A is utilised in an alloy for soldering purposes.
Identifications:
Lead nitrate, or Pb(NO3)2,
N2O: Nitrogen dioxide
B: Carbon (CO)
D: PbI2, or lead iodide.
Thus, this can be concluded regarding the given scenario.
For more details regarding metals, visit:
https://brainly.com/question/29404080
#SPJ1
Your question seems incomplete, the probable complete question is:
A metal nitrate A on heating gives a yellowish brown coloured metal oxide along with brown gas B and a colourless gas C. An aqueous solution of A on reaction with potassium iodide forms a yellow precipitate of compound D. Identify A, B, C and D. Also, identify the types of reactions taking place. Metal present in A is used in an alloy which is used for soldering purposes.
In H₂SO4 the oxidation number of H is [I], that of S is and that of O is
In H₂SO₄, the oxidation number of H is +1, the oxidation number of S is +6, and the oxidation number of O is -2.
The charge an atom would have if the compound were made up of ions is known as its oxidation number. 1. In a neutral substance with atoms of only one element, the oxidation number of an atom is zero.
The oxidation state, often known as the oxidation number, in chemistry is the hypothetical charge that an atom would have if all of its links with other atoms were entirely ionic.
In sulfuric acid, the oxidation number of H is +1, the oxidation number of S is +6, and the oxidation number of O is -2.
Learn more about oxidation number, here:
https://brainly.com/question/29100691
#SPJ1
What is the activation energy for the reaction shown in the energy level diagram below? The highest point of the graph is 650 kJ/mol. Give your answer to the nearest 100 kJ/mol.
Activation energy can be defined as the minimum amount of energy required for a chemical reaction to take place. The activation energy for the reaction shown in the energy level diagram can be calculated from the highest point of the graph.The highest point on the graph represents the activation energy for the reaction, which is equal to 650 kJ/mol.
The energy level diagram shows the reaction’s energy progress.The reaction's energy level diagram shows the energy changes that occur during the reaction. This diagram has two energy curves. One of these curves depicts the energy of the reactants, while the other curve shows the energy of the products. The difference between the energy of the reactants and the energy of the products is the reaction's energy.The energy required to overcome the energy barrier to reach the transition state is the activation energy. The reaction proceeds once the reactants have crossed the energy barrier. The activation energy is required to provide the initial energy to initiate the reaction. The minimum amount of energy required to start a reaction is the activation energy.In this case, the activation energy is 650 kJ/mol. The activation energy is a key factor that determines the reaction rate. A lower activation energy will cause the reaction to proceed more quickly. A higher activation energy, on the other hand, will cause the reaction to proceed more slowly.
For more questions on Activation energy
https://brainly.com/question/1380484
#SPJ8
Titration calculation
A student added 25cm3 of 0.150mol/dm3 of sodium hydroxide into a conical flask. They carried out
a titration using an unknown concentration of of citric acid. The results of the titration are shown
below. Calculate the concentration of the citric acid.
C6H807 + 3 NaOH
Volume of
C6H807
added in cm3
-
Titration 1
12.50
C6H507Na3 + 3 H2O
Titration 2
11.10
Titration 3
10.20
Titration 4
10.15
Titration 5
10.15
The concentration of the citric acid is 0.090 mol/dm3 based on the given titration results.
To calculate the concentration of the citric acid, we need to use the stoichiometry of the balanced chemical equation and the volume of sodium hydroxide used.
The balanced equation for the reaction between citric acid (C6H807) and sodium hydroxide (NaOH) is:
C6H807 + 3NaOH → C6H507Na3 + 3H2O
From the equation, we can see that 1 mole of citric acid reacts with 3 moles of sodium hydroxide.
First, let's calculate the number of moles of sodium hydroxide used in the titration. We know that the volume of the sodium hydroxide solution is 25 cm3 and its concentration is 0.150 mol/dm3.
Moles of NaOH = concentration × volume
= 0.150 mol/dm3 × 0.025 dm3
= 0.00375 mol
Since the stoichiometry of the reaction is 1:3 between citric acid and sodium hydroxide, the number of moles of citric acid is three times the number of moles of sodium hydroxide used in the titration.
Moles of C6H807 = 3 × 0.00375 mol
= 0.01125 mol
Now, we can calculate the concentration of the citric acid.
Concentration of citric acid = moles of C6H807/volume of C6H807
= 0.01125 mol / (12.50 cm3/1000)
= 0.090 mol/dm3
For more such questions on citric acid visit:
https://brainly.com/question/26202865
#SPJ8
What is the pressure, in atmospheres, exerted by a 0.100 mol sample of oxygen in a 2.00 L container at 273 °C? A) 4.48 x 10¹¹ atm B) 2.24 x 10⁰ atm C) 1.12 x 10³ atm D) 2.24 x 10³ atm
The pressure, in atmospheres, exerted by a 0.100 mol sample of oxygen in a 2.00 L container at 273 °C is 2.24 × 10⁰ atm.
How to calculate pressure?The pressure of a substance can be calculated using the following formula;
PV = nRT
P = pressureV = volumen = no of molesR = gas law constantT = temperatureAccording to this question, the pressure, in atmospheres, exerted by a 0.100 mol sample of oxygen in a 2.00 L container at 273 °C can be calculated as follows:
P × 2 = 0.1 × 0.0821 × 546
2P = 4.48266
P = 2.24 × 10⁰ atm
Learn more about pressure at: https://brainly.com/question/31525061
#SPJ1
can anyone help solve 44-49
Following are the answers:
45. Covalent
46. Nonmetals
47. Covalent
48. Subscript
49. Electrons
Covalent bonds are chemical bonds formed between atoms through the sharing of electrons. In a covalent bond, two or more atoms share one or more pairs of electrons to achieve a stable electron configuration. This sharing of electrons allows atoms to fill their outermost energy levels, resulting in a more stable state.
Covalent bonds are typically found between nonmetal atoms, where they play a crucial role in forming molecules and compounds. They are characterized by strong bonds and can result in the formation of various molecular structures and properties.
Learn more about covalent bonds, here:
https://brainly.com/question/19382448
#SPJ1
a. Covalent
b. Metals
46.
44. Bonds formed by gaining and losing electrons are called
45.
have 3 or fewer valence electrons.
47.
c. Ionic
d. Nonmetals
48. A
e. Subscript
f. Electrons
tend to gain or take electrons.
bonds are formed when electrons are shared.
bonds.
is used in a formula to tell the number of atoms of an element
in a compound.
49. Chemical reactivity or stability depends on the number of_
outer energy levels.
in the
46. Covalent bonds are formed by sharing electrons between atoms.
Covalent bonds are chemical bonds formed when two atoms share electrons. They occur between nonmetal atoms and involve the sharing of electron pairs, resulting in the formation of a stable molecule. Covalent bonds are typically found in molecular compounds.
47. Ionic bonds are formed by gaining or losing electrons between metals and nonmetals.
48. A subscript is used in a formula to indicate the number of atoms of an element in a compound.
49. Chemical reactivity or stability depends on the number of outer energy levels (valence shells) in atoms.
Learn more about covalent bonds, here:
https://brainly.com/question/19382448
#SPJ1
