General Chemistry Answers

If the gas in the above system has a volume of V at a pressure of P, what is the volume of the same gas at a pressure of 4P?

What is the [H3O+] of a solution in which 1.67g of HBr gas was dissolved in 250mL of water?

Ammonia is used in household cleaning supplies. It is found to have a pOH of 3.287, determine the hydroxide concentration.

What is the pOH of solution in which 1.9g of NaOH is dissolved in 950mL. What is the pOH?

What is the hydroxide concentration range of the unknown solution above? Show your calculation steps

You are given an unknown solution, Methyl orange turned yellow. Bromocresol green turned green Chlorophenol red turned yellow

Describe the steps to calculate the range of pH of this solution

Name an amphiprotic substance.

Use the Modified Arrhenius equations to prove this

Choose the appropriate description for the substance below

Arrange your answer in numerical order

Amphiprotic/Amphoteric

Monoprotic

PolyproticH2PO4-

Choose the appropriate description for the substance below

Arrange your answer in numerical order

no spaces, no commas)

Amphiprotic/Amphoteric

Monoprotic

PolyproticHSO4-

What is the mass in grams of KCl present in 23.0 g KCl of 12.50 KCl solution

18. What is the [OH-] in a 50.0 mL solution of 0.050 M HClO4?

Using the balanced equation below, how many moles of H20 will be produced if 3.2 moles H2 react completely with O2?

Convert 3.47 x 10⁸ millimeters to meters.

For the reaction: N2O5(s) ֖ NO2(g) + O2(g), what would be the effect on the equilibrium if:

[NO2] decreases

[NO2] increases

[O2] increases

A sample of air was collected on a day when the total atmosphere pressure was 795 mmHg. The sample contained only oxygen and nitrogen gas. If the nitrogen in the sample had a pressure of 115 mmHg, how much pressure did the oxygen have? NOTE: You must show your calculation on the attached scratch paper, including which of the Gas Law formulas you used. 

3AgNO3(aq) + Na3PO4(aq)→ Ag3PO4(s) + 3NaNO3(aq) is what type of reaction

What is the density of gasoline that has a specific gravity of 0.74 ?