Which of the following best describes the interaction between water molecules?
Group of answer choices

A. Hydrogen Bonding

B. London Dispersion Forces

C. Dipole-Dipole Forces

D. Van der Waals Forces

Answers

Answer 1

Answer:

hydrogen bonding

Explanation:

I just think it is I am not sure

Answer 2

Answer: C. Dipole-dipole interactions.


Related Questions

A gram of gasoline produces 45.0kJ of energy when burned. Gasoline has a density of 0.77/gmL. How would you calculate the amount of energy produced by burning 13.L of gasoline?
Set the math up. But don't do any of it. Just leave your answer as a math expression.

Also, be sure your answer includes all the correct unit symbols.

how do I set up the math?

Answers

Answer:

See below

Explanation:

45 kJ / gm   * .77  gm / liter  * 13 liter =  _________  kJ

Burning 13 L of gasoline would produce 450,450 kJ of energy. For calculating the amount of energy produced by burning 13 L of gasoline, we can use the given information that 1 gram of gasoline produces 45.0 kJ of energy when burned and the density of gasoline is 0.77 g/mL.

First, we need to convert the volume of gasoline from liters to milliliters since the density is given in grams per milliliter.

13 L = 13,000 mL

Next, we can calculate the mass of the gasoline using the density:

Mass = Volume x Density

Mass = 13,000 mL x 0.77 g/mL

Mass = 10,010 g

Now, we can calculate the amount of energy produced by multiplying the mass of gasoline by the energy produced per gram:

Energy = Mass x Energy per gram

Energy = 10,010 g x 45.0 kJ/g

Energy = 450,450 kJ

Therefore, burning 13 L of gasoline would produce 450,450 kJ of energy.

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What is the coefficient and the formula 3Zn(NO3)2 represent ?


Nitrogen atoms:



I thought it was 8 but it’s wrong

Answers

The answer is 6 nitrogen atoms.

The given chemical formula is : 3Zn(NO₃)₂

Let's find the number of nitrogen atoms by opening the bracket.

3ZnN₂O₆Zn₃NO₁₈

Hence, there are 6 nitrogen atoms.

Identify the type of compound that would have the following properties?

Conducts electricity when melted or dissolved in water.
High Melting Point
Usually a Solid
Group of answer choices

A. Ionic

B. Metallic

C. Covalent

D. Molecular

Answers

Answer:

The correct answer is A

Explanation:

Ionic compounds conduct electricity when molten (liquid) or in an aqueous solution because their ions are free to move from place to place

hope it will help you

hope it will help you

How much heat is needed to melt 100.0 grams of ice that is already at 0°C?
Group of answer choices

A. +33,400J

B. -226,000 J

C. +226,000 J

D. -33,400J

Answers

A. The heat is needed to melt 100.0 grams of ice that is already at 0°C is +33,400 J.

What is Specific heat capacity?

Specific heat capacity is the quantity of heat needed to raise the temperature per unit mass.

Heat needed to melt the cube of ice

The heat is needed to melt 100.0 grams of ice that is already at 0°C is calculated as follows;

Q = mL

where;

m is mass of the iceL is latent heat of fusion of ice = 334 J/g

Q = 100 x 334

Q = 33,400 J

Thus, the heat is needed to melt 100.0 grams of ice that is already at 0°C is +33,400 J.

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Calculate the [H+] in a solution that has the following pH:

pH 8.57


pH 5.18


pH 1.30

Answers

Answer:

1.) [H⁺] = 2.69 x 10⁻⁹

2.) [H⁺] = 6.61 x 10⁻⁶

3.) [H⁺] = 5.01 x 10⁻²

Explanation:

The [H⁺] in a solution can be found using the following equation:

[H⁺] = 10^(-pH)

Therefore, you can plug the given pH into the equation and solve for the hydrogen ion concentration ([H⁺]).

1.) pH 8.57

[H⁺] = 10^(-pH)

[H⁺] = 10^(-8.57)

[H⁺] = 2.69 x 10⁻⁹

2.) pH 5.18

[H⁺] = 10^(-pH)

[H⁺] = 10^(-5.18)

[H⁺] = 6.61 x 10⁻⁶

3.) pH 1.30

[H⁺] = 10^(-pH)

[H⁺] = 10^(-1.30)

[H⁺] = 5.01 x 10⁻²

If you mix 20.0 mL of a 3.00 M sugar solution with 30.0 mL of a 6.38 M sugar solution, you will end up with a sugar solution of ______ M

Answers

Taking into account the definition of molarity, the final sugar solution has a concentration of 5.028 M.

Definition of molarity

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

molarity= number of moles÷ volume

Molarity is expressed in units [tex]\frac{moles}{L}[/tex].

This case

In this case, you mix 20.0 mL (0.02 L) of a 3.00 M sugar solution with 30.0 mL (0.03 L) of a 6.38 M sugar solution. To know the concentration of the sugar solution, you need to find the total moles of sugar solution from the mixtures as follow:

0.02 L× 3 M= 0.06 moles of sugar.0.03 L× 6.38 M= 0.1914 moles of sugar.total moles of sugar solution= 0.06 moles + 0.1914 moles= 0.2514 moles.

Now, the total volume of the solution is calculated adding the volume of the two solutions:

total volume= 20 mL + 30 mL= 50 mL= 0.05 L

Replacing the values inf the definition of molarity:

molarity= 0.2514 moles÷ 0.05 L

Solving:

molarity= 5.028 M

Finally, the final sugar solution has a concentration of 5.028 M.

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Why do you use the same amount of water for each shape of ice?

Answers

Answer:

the water level remains the same when the ice melts

Answer:

Because then the shape that it would look would supposed to look like, would be different.

Explanation:

Which type of scientist would most likely study how electricity could be
produced more efficiently?
OA. A physicist
OB. An Earth scientist
OC. A biologist
OD. A chemist

Answers

Answer:

A physicist

Explanation:

Physics is that aspect of science that deals with nature and matter in relation to energy. Electricity is a source for energy

Convert the following measurement

Answers

Answer:

9.9 x 10^-2 g*cm²/s²

Explanation:

9.9 × 10^-9 kg*m²/s² =    g*cm²/s²

1 kg*m²/s² = 1 joule(s)

1 g*cm²/s² = 1 erg(s)

britannica

1 kg = 1000g = 1x10^3 g

1 m²= 10000 cm² = 1x10^4 cm²

add the exponents 3 and 4 which = 7

-9 + 7 = -2

9.9 × 10^-9 kg*m²/s² = 9.9 x 10^-2 g*cm²/s²

Consider the following reaction at 298K.
I2 (s) + H2 (g) 2 I- (aq) + 2 H+ (aq)

Which of the following statements are correct?

Answers

From the forgoing, we can conclude that the the correct statements are;

n = 2 mol of electronsK < 1What are the redox reaction?

The redox reaction is one in which one specie is oxidized and the other is reduced. We can obtain the equilibrium constant from the relation;

E°cell = 0.0592/n log K

E°cell = cell potential

n = number of electrons

K = equilibrium constant

E°cell = -0.403 - 0.535 = -0.938 V

n = 2 electrons

Thus;

-0.938 =  0.0592/2 logK

-0.938 * 2/ 0.0592 = log K

K = 2 * 10^-31

Also;

ΔG = - nFE°cell

ΔG = - (2 * 96500 *  -0.938)

ΔG = 181kJ/mol

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Which of the following could be
considered an example of physical
contamination?
a. Pesticide contamination in food

b. Copper leeching into food during the
cooking process

c. A bandage falling into a prepared dish

d. Sanitizer getting onto a food product during
preparation

Answers

A bandage falling into a prepared dish could be considered an example of physical contamination.

Physical contamination occurs when a physical object enters food at some level of the manufacturing or preparation procedure. Physical objects in meals may be a choking hazard and regularly introduce biological contaminants as well.

It may arise at any stage of food delivery and preparation. Physical contamination can reason critical damage to the consumer, which includes broken teeth or choking. Varieties of contaminants that can be found in food include jewelry, hair, plastic, bones, stones, pest bodies, and material.

Chemical contamination takes place while food is infected through chemical compounds. Some of the reasons for chemical contamination are cleansing merchandise or pesticides and herbicides from unwashed fruit and vegetables. Examples of chemical contaminants are commercial chemical substances and agricultural chemicals.

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Need help answering this question

Answers

Answer:

1st = saturated

Explanation:

Bro first ka answer saturated he

Which would be the best way to represent the concentration of a 1.75 M K2CrO4 solution?
O 1.75% K2CrO4
O [K2CRO4]
(K2CrO4)
K2CRO4, [M] = 1.75

Answers

The best way to represent the concentration of a 1.75 M K2CrO4 solution is 1.75% K2CrO4 (option A).

What is molarity?

Molarity is the concentration of a substance in solution, expressed as the number moles of solute per litre of solution.

The molarity is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution.

The molarity is measured in mol/L or M, hence, it can be said that the molarity of a solution is 0.1M.

However, the concentration of a solution is best represented by using %. In accordance with this question, the best way to represent the concentration of a 1.75 M K2CrO4 solution is 1.75% K2CrO4.

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Perform the following operation and express the answer in scienfific notation 7.5x10 ^9 - 2.5 x 10^8

Answers

The answer is in scientific notation 34^67 42’063 1220.

The correct form for scientific notation is a x 10^b. where a is a number or decimal such that the absolute value of a is greater than or equal to 1 and less than 10, or 1 ≤ |a|. < 10. b is the power of 10 required to make the scientific notation mathematically equivalent to the original number.

To write this number in scientific notation, you must first shift the number of decimal places from the original number by 4 places between 4 and 2. We're subtracting from the exponent because we're shifting the decimal four places to the right.

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In a calorimetry experiment 2.50 g of methane is burnt in excess oxygen. 30% of the

energy released during the combustion is absorbed by 500 g of water, the temperature of

which rises from 25°C to 68°C. The specific heat capacity of water is 4.184 J/g°C. What

is the total energy released per gram of methane burnt?

Answers

The total energy released per gram of methane in the experiment is 119941.33 J/g

How to determine the change in the temperature of waterInitial temperature of water (T₁) = 25 °CFinal temperature of water (T₂) = 68 °CChange in temperature (ΔT) = ?

Change in temperature (ΔT) = T₂ – T₁

Change in temperature (ΔT) = 68 – 25

Change in temperature (ΔT) = 43 °C

How to determine the heat absorbed by the water

The absorbed by the water can be obtained as illustrated below:

Mass of water (M) = s00 gChange in temperature (ΔT) = 43 °C Specific heat capacity of the water (C) = 4.184 J/gºC Heat (Q) =?

Q = MCΔT

Q = 500 × 4.184 × 43

Q = 89956 J

How to determine the energy released by methane in the experimentHeat absorbed by water = 89956 JPercentage of heat absorbed by water = 30%Heat released by methane =?

Heat absorbed by water = 30% of heat released by methane

89956 = 30% × heat released by methane

89956 = 0.3 × heat released by methane

Divide both sides by 0.3

Heat released by methane = 89956 / 0.3

Heat released by methane = 299853.33 J

How to determine the heat released per gram of methaneHeat released by methane (Q) = 299853.33 JMass of methane (m) = 2.5 gHeat per gram (ΔH) =?

Q = m × ΔH

Divide both sides by m

ΔH = Q / m

ΔH = 299853.33 / 2.5

ΔH =119941.33 J/g

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A sample of a gas (15.0 mol) at 2.0 atm is expanded at constant temperature from 5 L to 19.5 L. calculate the final pressure.​

Answers

Answer:

.512 ATM

Explanation:

P1V1 = P2V2

2 * 5   =  P2 * 19.5

P2 = .512 ATM

If the pressure of 1.5 moles of a gas is 2 atm and the temperature is 27°C, what is the volume of the gas?
Group of answer choices

A. 9.25 L

B. 5.0 L

C. 37.0 L

D. 18.5 L

Answers

Answer:

9.25l

Explanation:

9.25l was correct answer

The ideal gas law is a fundamental equation that describes the behavior of an ideal gas. It relates the pressure (P), volume (V), temperature (T), and number of moles (n) of an ideal gas using the ideal gas constant (R). The volume of the gas is 18.5 L. Hence option D is correct.

We can use the ideal gas law to solve this problem:

PV = nRT

where:

P is the pressure of the gas (in atm)

V is the volume of the gas (in L)

n is the number of moles of the gas

R is the ideal gas constant (0.08206 L·atm/mol·K)

T is the temperature of the gas (in K)

Plugging in the values from the problem, we get:

2 atm * V = 1.5 mol * 0.08206 L·atm/mol·K * 300 K

V = (1.5 mol * 0.08206 L·atm/mol·K * 300 K) / 2 atm

V = 18.5 L

Therefore, the volume of the gas is 18.5 (option D).

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what is the purpose of adding concentrated phosphoric acid to the reaction mixture in the synthesis of aspirin

Answers

Concentrated phosphoric acid is added to the reaction mixture in the synthesis of aspirin to maintain the acidic environment and to keep the reagents protonated.

What is the phosphoric acid?

Phosphoric acid is an inorganic acid with the molecular H₃PO₄.

Its a triprotic acid which means that one molecule of the acid produces 3 molecules of hydrogen ions.

Phosphoric acid is important for many laboratory as well as industrial uses. It can be serve as buffer in living organisms.

It also used in the synthesis of aspirin.

The synthesis of aspirin requires an acidic environment. Therefore, concentrated phosphoric acid is added to the reaction mixture in the synthesis of aspirin to maintain the acidic environment and to keep the reagents protonated.

In conclusion, Phosphoric acid ensures an acidic environment in the synthesis of aspirin.

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Which of the following happens when a reaction reaches dynamic equilibrium in a closed system? (4 points)

Group of answer choices

The concentrations of the reactants and products increase.

The concentrations of the reactants and products decrease.

The rate of the forward reaction equals the rate of the reverse reaction.

The rate of the forward reaction is slower than the rate of the reverse reaction.

Answers

The rate of the forward reaction equals the rate of the reverse reaction.

What is dynamic equilibrium?

When it comes to chemical reactions, a dynamic equilibrium is a condition in which a reversible reaction produces products and reactants at an equal rate.

Dynamic equilibrium can only be achieved in a closed system. That is, a system in which there are no external influences in form of energy, material, or pressure.

For example, consider the following reversible reaction:

[tex]A + B < --- > C + D[/tex]

If the reaction is in dynamic equilibrium, there will not be a net production of reactants and products. In other words, the rate of production of A and B will be the same as the rate of production of C and D.

This is as opposed to static equilibrium in which the production of both reactants and products stops completely after reaching equilibrium.

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72
Anteaters have very long noses that are adapted to help them survive. Although they have poor eyesight,
anteaters have an excellent sense of smell that helps them detect their surroundings. Anteaters are also good
swimmers and can use their noses like a snorkel held above the water.
How does an anteater's nose help it meet its needs?
A
Its nose can be used to fight off predators.
B
C
D
Its nose can be used as a paddle to help it swim.
Its sticky tongue can quickly catch insects to eat.
Its powerful sense of smell helps it find insects to eat.

Answers

Answer:

Its powerful sense of smell helps it find insects to eat.

7. What is the molarity of the nitrate ion that is found in a solution made by dissolving 6.25g
of aluminum nitrate in a total volume of 325.0mL?

Answers

Answer:

0.271 M NO₃⁻

Explanation:

To find the molarity of the nitrate ion (NO₃⁻), you need to (1) convert grams to moles (via molar mass), then (2) convert moles Al(NO₃)₃ to moles NO₃⁻, then (3) convert mL to L, and then (4) calculate the molarity. When (Al(NO₃)₃) dissolves in water, it dissociates into 3 nitrate ions. The final answer should have 3 sig figs.

(Steps 1 + 2)

Molar Mass (Al(NO₃)₃): 26.982 g/mol + 3(14.007 g/mol) + 9(15.998 g/mol)

Molar Mass (Al(NO₃)₃): 212.985 g/mol

1 Al(NO₃)₃ = 1 Al³⁺ and 3 NO₃⁻

6.25 g Al(NO₃)₃            1 mole               3 moles NO₃⁻
-------------------------  x  -----------------  x   -----------------------  =  0.0880 moles NO
                                    212.985 g         1 mole Al(NO₃)₃

(Steps 3 + 4)

325.0 mL / 1,000 = 0.3250 L

Molarity = moles / volume

Molarity = 0.0880 moles / 0.3250 L

Molarity = 0.271 M

A 34.4 L sample of oxygen gas at 229°C and 752 torr is cooled to 34°C at 668 torr. The volume of the sample is now
L.

Answers

Answer:

23.55 L

Explanation:

USe the following 'identity' of gs laws

P1 V 1 / T1 = P2 V2 / T2         ( T must be in Kelvin)

re arrange to

P1 V 1  T2  /  (T1 P2)   = V2       NOW SUB IN THE VALUES

752 * 34.2 * ( 34 + 273.15) / [( 229 + 273.15) * 668]   = V2 = 23.55 L

Which of the following transformations represent an increase in the entropy of the system.

Choose all that apply
26 g C5H12 (liquid, 156K)------>26 g C5H12 (liquid, 297K)
3 mol O2 (1.14 atm, 408K) ------>3 mol O2 (1.14 atm, 204K)
32 g Pb (liquid, 601.0K) ------>32 g Pb (solid, 601.0K)
26 g C5H12 (liquid, 309K) ------->26 g C5H12 (gas, 309K)
3 mol CH4 (8.17 L, 240K) ------->3 mol CH4 (16.3 L, 240K)

Answers

The transformations that result in increase in entropy are those that result in increased disorderliness and they are:

26 g C5H12 (liquid, 156K)------>26 g C5H12 (liquid, 297K) 26 g C5H12 (liquid, 309K) ------->26 g C5H12 (gas, 309K) 3 mol CH4 (8.17 L, 240K) ------->3 mol CH4 (16.3 L, 240K)

What is entropy of a system?

The entropy of  a system is a measure of the degree of randomness or disorderliness of a system.

When a system changes from a more ordered state to a more disordered state, there is an increase in the entropy of the system.

Increase in temperature or volume also results in increase in entropy.

For example, when solid melts to form liquid, entropy increases. Also, when liquid changes to gas, entropy of the system increases.

Based on the above transformations:

26 g C5H12 (liquid, 156K)------>26 g C5H12 (liquid, 297K) - entropy increases3 mol O2 (1.14 atm, 408K) ------>3 mol O2 (1.14 atm, 204K) - entropy decreases32 g Pb (liquid, 601.0K) ------>32 g Pb (solid, 601.0K) - entropy decreases 26 g C5H12 (liquid, 309K) ------->26 g C5H12 (gas, 309K) - entropy increases3 mol CH4 (8.17 L, 240K) ------->3 mol CH4 (16.3 L, 240K) - entropy increases

In conclusion, an increase in disorderliness of a system results in entropy increase.

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Perform the following opeartiona dn express the answer in scientific notation 3.14x10^-2/2.65x10^-7

Answers

Answer:

1.18 x 10⁵

Explanation:

3.14 x 10⁻² / 2.65 x 10⁻⁷ = 1.18 x 10⁵

When performing division, the final answer should have the same number of significant figures as the number with the smallest number of sig figs. In this case, both of the given numbers have 3 sig figs, meaning the final answer should have this many as well.

Consider the following reaction at 298 K.

Which of the following statements are correct?

Answers

From the calculation, the correct statements are;

n = 2 mol of electronsK < 1What are the true statements?

Now we know that it is possible to obtain the equilibrium constant from the relation;

E°cell = 0.0592/n log K

E°cell = cell potential = -0.403 - 0.535 = -0.938 V

n = number of electrons = 2 electrons

K = equilibrium constant

Thus;

-0.938 =  0.0592/2 logK

-0.938 * 2/ 0.0592 = log K

K = 2 * 10^-31

ΔG = - nFE°cell

ΔG = - (2 * 96500 *  -0.938)

ΔG = 181kJ/mol

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Urgent

During an experiment, distilled water was placed in a sealed container and the container was heated gradually. Describe this system when it reaches phase equilibrium.

Answers

We can achieve equilibrium state, when the concentration of product and reactants are equal to each other.

Describe this system when it reaches phase equilibrium?

In this type of system, when the same amount of liquid water is converted into gaseous form of water and the gaseous form of water into liquid form of water. This phase is known as equilibrium phase or state because same amount of reactants and products are produced .

So we can conclude that we can achieve equilibrium state, when the concentration of product and reactants are equal to each other.

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How many grams in 1.61 x 1023 molecules of water (H2O)

Answers

Taking into account the definition of Avogadro's number and molar mass, 4.806 grams of water are present in 1.61×10²³ molecules.

Definition of Avogadro's Number

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

Definition of molar mass

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

Mass of water

Taking into account the definition of Avogadro's Number, you can apply the following rule of three: if 6.023×10²³ molecules are contained in 1 mole of water, then 1.61×10²³ molecules are contained in how many moles of water?

amount of moles of water= (1.61×10²³ molecules× 1 mole)÷ 6.023×10²³ molecules

amount of moles of water= 0.267 moles

Now, taking into account the definition of molar mass, and knowing that the molar mass of water is 18 g/mole, you can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 18 grams, 0.267 moles of the compound contains how much mass?

[tex]mass= \frac{0.267 molesx 18 grams}{1 mole}[/tex]

mass= 4.806 grams

Finally, 4.806 grams of water are present in 1.61×10²³ molecules.

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10. What are saturated and unsaturated fatty acids?

Answers

Fatty acids are the building blocks of the fat in our bodies and in the food we eat.

Functionality of fatty acids?Saturated fatty acids consists of single bond of carbon atoms and no double bondSaturated fatty acids are solids in room temperature.Only single bond of hydrocarbon chain is found.Melting point is high and have straight chainIt is soluble in vitamins and obtained from palm oil, coconut oil, and animal fats.Unsaturated fatty acids consists of carbon atoms and there will be one or more double bondsSaturated fatty acids consists of single bond of carbon atoms and no double bond is found. are liquids in room temperature.One or more bond of hydrocarbon chain.Melting point is low and have bend chains at double points.It is insoluble in vitamins and obtained from sunflower oil,walnut,fish oil.

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In the chemical reaction:

Cu + 2AgNO3 → 2Ag + Cu(NO3)2

What is the limiting reactant if you start with 1.8 moles of copper and 2.0 moles of silver nitrate?

Group of answer choices

A. copper (II) nitrate

B. copper

C. silver

D. silver nitrate

Answers

Taking into account the reaction stoichiometry and definition of limiting reactant, AgNO₃ will be the limiting reagent.

Reaction stoichiometry

In first place, the balanced reaction is:

Cu + 2 AgNO₃  → 2 Ag + Cu(NO₃)₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

Cu: 1 moleAgNO₃: 2 molesAg: 2 molesCu(NO₃)₂: 1 mole

Limiting reagent

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

Limiting reagent in this case

To determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 1 mole of Cu reacts with 2 moles of AgNO₃, 1.8 moles of Cu reacts with how many moles of AgNO₃?

[tex]amount of moles of AgNO_{3} =\frac{1.8 moles of Cux2 moles of AgNO_{3} }{1 mole of Cu}[/tex]

amount of moles of AgNO₃= 3.6 moles

But 3.6 moles of AgNO₃ are not available, 2 moles are available. Since you have less moles than you need to react with 1.8 moles of Cu, AgNO₃ will be the limiting reagent.

Summary

In summary, AgNO₃ will be the limiting reagent.

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Calculate the pH of the following:
1. [H+] = 1 x 10-7 M


2. [OH-] = 1 x 10-3 M

3. [H+] = 1 x 10-2 M


4. [H+] = 1 x 10-10 M


5. [OH-] = 1 x 10-8 M

Answers

The pH can be defined as the negative logarithm of the hydrogen ion concentration of the solution.

What is the pH?

What we call the pH can be defined as the negative logarithm of the hydrogen ion concentration of the solution. We are aware that we can use the relation [H+]  [OH-]  = 1 * 10^-14 to handle the enormity of this problem.

Now, let us go about solving the problems;

1. pH = -log(1 x 10-7) = 7

2.  [H+]=  1 * 10^-14/ 1 x 10^-3

pH =  -log(  1 * 10^-11)

pH = 11

3. pH = -log( 1 x 10^-2)

pH = 2

4. pH = -log(  1 x 10^-10)

pH = 10

5.  [H+]=  1 * 10^-14/ 1 x 10^-8

[H+]=  1 * 10^-6

pH = 6

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