567 Answered Questions for the topic AP chemistry

Ap Chemistry Chemistry

17m

How many grams of magnesium cyanide are required to make this solution?

How many grams of magnesium cyanide are required to make 275 mL of 0.075 molarity solution?

HELP Chemistry. energy required to heat

At 1 atm, how much energy is required to heat 53.0 g H2O(s) at −22.0 ∘C to H2O(g) at 119.0 ∘C? In KJ.

Vapor pressure of a certain liquid

A certain liquid has a vapor pressure of 92.0 Torr at 23.0 ∘C and 206.0 Torr at 45.0 ∘C.a. Calculate the value of delta H vap for this liquid.b. Calculate the normal boiling point of this liquid.

Vapor pressure of a certain substance

A certain substance has a heat of vaporization of 33.31 kJ/mol. At what Kelvin temperature will the vapor pressure be 4.50 times higher than it was at 291 K?
Ap Chemistry

5d

Based on these data, the rate constant for the reaction is ?

The decomposition of nitrosyl bromide at 10 °CNOBrNO + ½ Br2is second order in NOBr.In one experiment, when the initial concentration of NOBr was 0.347 M, the concentration of NOBr dropped... more
Ap Chemistry Chemistry College

5d

The following initial rate data are for the reaction of tertiary butyl bromide with hydroxide ion at 55 C :

The following initial rate data are for the reaction of tertiary butyl bromide with hydroxide ion at 55 oC:(CH3)3CBr + OH-  (CH3)3COH + Br- Experiment [(CH3)3CBr]o, M [OH-]o, M Initial Rate,... more
Ap Chemistry Chemistry

9d

200. mL of Ca(OH)2 are required to neutralize 100. mL of 0.10 M Acetic acid. What is the molarity of the Ca(OH)2

200. mL of Ca(OH)2 are required to neutralize 100. mL of 0.10 M Acetic acid. What is the molarity of the Ca(OH)2
Ap Chemistry Chemistry

12d

0.05g of magnesium react in 23.92mL of 2M formic acid (HCOOH, Ka=1.8x10-4). Determine the resulting pH.

0.05g of magnesium react in 23.92mL of 2M formic acid (HCOOH, Ka=1.8x10-4). Determine the resulting pH.
Ap Chemistry Chemistry

12d

Complete the following reaction:

Complete the following reaction:HCO3-1 +HPO4-2 -->
Ap Chemistry Chemistry

13d

Given the following reactions, predict whether reactants or products predominate.

The acetate ion, Ac-, is a stronger base than water, which is a stronger base than chloride ion, Cl-.Given the following reactions, predict whether reactants or products predominate.HCl(aq) + H2O ⇒... more
Ap Chemistry Chemistry

16d

Write a chemical equation for each that illustrates its reaction with water. Explain why they act as bases. Identify the conjugate acid in each of the reactions.

Write a chemical equation for each that illustrates its reaction with water. Explain why they act as bases. Identify the conjugate acid in each of the reactions. cyanide ion, CN–
Ap Chemistry Chemistry

16d

Write a chemical equation for each that illustrates its reaction with water. What makes these substances acids? Identify the conjugate base in each of the re- actions.

Write a chemical equation for each that illustrates its reaction with water. What makes these substances acids? Identify the conjugate base in each of the re- actions.ammonium ion, NH4+
Ap Chemistry Chemistry Ap Chem

19d

2L of 0.5 M H2SO4 are needed to exactly neutralize 3 liters of NaOH of an unknown concentration.

2L of 0.5 M H2SO4 are needed to exactly neutralize 3 liters of NaOH of an unknown concentration. How do you find the concentration of the NaOH?
Ap Chemistry Chemistry Chem Ap Chem

19d

Chemistry .

If the total pressure of air is 133 kPa, what is the P O2 if it makes up 22% of the total pressure?
Ap Chemistry Chemistry

20d

Question about bases

Which pH value indicates the solution that is a base that conducts electricity the poorest?a) 3 b) 5 c) 9 d) 12Explain your answer:
Ap Chemistry Chemistry

20d

pH Chemistry Question

Which of the following solutions can have a pH of 5?a) a 10-5 M solution of HCl b) a 10-5 M solution of NaOHc) a 10-5 M solution of NaCl d) a 10-5 M solution of CH4
Ap Chemistry Chemistry

20d

Unit 8 Checkpoint Question 1 - NEW CED Compatible

Vitamin C, Ascorbic acid H2C6H6O6, is a weak acid with a Ka of 7.9 x 10-5A) Write an equation showing the dissociation of one H+ from the acid.B) Identify the acid and conjugate base.C) Build a... more
Ap Chemistry Chemistry

21d

Barium Acetate: For the salt given below, determine an acid & base that can react to produce the salt and write a balanced neutralization reaction using that acid & base.

For the salt given below, determine an acid & base that can react to produce the salt and write a balanced neutralization reaction using that acid & base.Barium Acetate
Ap Chemistry Chemistry

21d

Aluminum Sulfate: For the salt given below, determine an acid & base that can react to produce the salt and write a balanced neutralization reaction using that acid & base.

For the salt given below, determine an acid & base that can react to produce the salt and write a balanced neutralization reaction using that acid & base.Aluminum Sulfate
Ap Chemistry Chemistry

21d

Which of the following solutions has the highest concentration of hydroxide ions? a) NaCl b) HCl c) C6H12O6 d) NaOH

Which of the following solutions has the highest concentration of hydroxide ions?a) NaCl b) HCl c) C6H12O6 d) NaOHExplain your answer, in terms of what kind of substance it is:
Ap Chemistry Chemistry

28d

A saturated solution of NaOH is formed in a beaker. The change is written as NaOH(s) ⇌ Na+1 (aq) + OH-1 (aq) + 44.51 kJ,

A saturated solution of NaOH is formed in a beaker. The change is written asNaOH(s) ⇌ Na+1 (aq) + OH-1 (aq) + 44.51 kJ,Explain, in terms of common ions, why adding NaCl (aq) to this change will... more

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