Find an Online Tutor Now

464 Answered Questions for the topic AP chemistry

Ap Chemistry Chemistry

09/24/19

What is the empirical formula for the tartrate ion?

Ap Chemistry Math Chemistry

09/11/19

Help me answer this chemistry ?!?!?

how much water vapor is contained in a cubic room 10 ft along an edge is the relative humidity is 50% and the temperature is 80F? the vapor pressure of water 80F is 26.2 mm Hg. the relative... more
Ap Chemistry Chemistry

08/13/19

In the following redox reaction, which species is being reduced and which is being oxidized?

2 C2H6 (g) + 7 O2 (g) --> 4 CO2 (g) + 6 H2O (g)I got as far as identifying O2 as the species being reduced (oxidation state decreases) but then I got confused with how C2H6 is being oxidized... more
Ap Chemistry Chemistry

08/11/19

Calculate the concentrations of each ion remaining in solution after the precipitation is complete.

The precipitation reaction involves 75.0 mL of .0750 M solution of potassium phosphate and 75.0 mL of .0750 M iron (II) acetate.I'm very confused as to how to find the concentration of the... more
Ap Chemistry Science Chemistry

08/11/19

Which of the following solutions of strong electrolytes contains the largest number of ions?

50.0 mL of .175 M NaOH, 100.0 mL of .250 M BaCl2, or 250.0 mL of .050 M Na3PO4?I would really appreciate if you could explain what to do in order to determine which solution contains the most... more
Ap Chemistry Chemistry

05/27/19

Concentration of the solute species?

What are the concentrations of all the solute species in 0.350 M lactic acid, HC3H5O2? This acid has ka = 1.4 x 10-4
Ap Chemistry Chemistry

05/27/19

Stronger base h or a

Given that the ka = 1.8 x 10-5 for acetic acid and the ka = 3.5 x 10-8 for hypchlorous acid, which is the stonger base, hypochlorite or acetate?
Ap Chemistry Chemistry

05/27/19

Justifying and selecting indicator

Select and justify a good indicator for the following titration:When 25 mL of 0.10 M formic acid (HCHO2) is titrated with 0.10 M NaOH.
Ap Chemistry Chemistry

05/27/19

Ka for ammonium

Ammonia, NH3, has a kb = 1.8 x 10-5. What is the Ka for ammonium?
Ap Chemistry Chemistry

05/27/19

Ka expression for an ionization

What would be the ka expression for the ionization of acetic acid (a weak acid).
Ap Chemistry Chemistry

05/27/19

Writing chemical equations

Write the chemical equation for the first and second ionization of sulfuric acid (a strong acid)
Ap Chemistry Chemistry

05/27/19

Calculating molar concentrations

Calculate the molar concentrations of H+ and OH- in solutions that have a pH = 8.26
Ap Chemistry Chemistry

05/27/19

Calculating the pH of a solution

Calculate the pH of a solution where [H+] = 3.6 x 10-4
Ap Chemistry Chemistry

05/27/19

Calculating OH- in a solution

Calculate the [OH-] in a solution in which the [H3O+] = 4.2 x 10-9 M
Ap Chemistry Chemistry

05/27/19

Conjugate acid-base pairs

Identify the conjugate acid-base pairs in the following reaction:HCO3− (aq) + H2O (l) ↔H2CO3 (aq) + OH− (aq)
Ap Chemistry Chemistry

05/27/19

Conjugat acid-base pairs

Identify the conjugate acid-base pairs in the following reaction:H2O (l) + H2O (l) ↔ H3O+ (aq) +OH− (aq)
Ap Chemistry Chemistry

05/27/19

Equilibrium constant value

A galvanic cell is based on the following half- reactions:Cu+2 (aq) + 2e- à Cu (s)                  ɛ° = 0.34 VV+2 (aq) + 2e- à V (s)                   ɛ° = -1.20 VIn this cell, the copper... more
Ap Chemistry Chemistry

05/26/19

Concentration of H+

HA is a weak, monoprotic acid that dissociated according to the equation:HA (aq) ßà H+ (aq) + A- (aq)                  Ka = 4.0 x 10-9If the initial concentration of HA is 0.10 M, find the... more
Ap Chemistry Chemistry

05/26/19

Molarity of the copper (I) hydroxide

A student uses acetic acid to titrate a solution of copper(I) hydroxide to determine the concentration of the copper (I) hydroxide. If 30.0 mL of 0.250 M acetic acid is needed to neutralize 15.0 mL... more
Ap Chemistry Chemistry

05/26/19

Galvanic cell based on half-reactions

A galvanic cell is based on the following half- reactions:Cu+2 (aq) + 2e- à Cu (s)            ɛ° = 0.34 VV+2 (aq) + 2e- à V (s)                   ɛ° = -1.20 VIn this cell, the copper compartment... more
Ap Chemistry Science Chemistry

05/19/19

Please provide answer and if possible explanation

In the decomposition of ammonia on a platinum surface at 856 oC, 2NH3(g) → N2(g) + 3H2(g), changing the concentration of NH3 has no effect on the rate. Which unit below is the correct unit for the... more
Ap Chemistry Chemistry Chem

05/08/19

Why is a calcium atom larger than a magnesium atom?

Please help explain in terms of not just periodic trends.
1 2 3 4 6 8 9 19

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.