Alyssa

At 100oC, the vapor pressure for water, methanol, and ethanol are 760, 2625, and 1694

torr, respectively. Which compound has the highest normal boiling point and which the

lowest?

If anyone can help I will vote best answer.

I have no clue where to even start. Any help is welcomed. Thank you.

Calculate the molar solubility of this compound.

I'm terrible in chemistry. Any help is welcomed.

Silver ions can be separated from a solution containing silver nitrate and sodium nitrate by adding hydroiodic acid because

Answer

A. basic nitrate ions react with the added acid forming water

B. silver iodide precipitates out of the solution leaving the sodium ions dissolved in the solution.

C. sodium iodide precipitates out of the solution leaving behind the silver ions.

D. the iodide ions from the acid primarily react with the nitrate ions from silver nitrate.

Okay, before you read all of this, I'm not asking for you to do my homework, I'm just asking for help. It's just one question, it just looks like a lot. Can you explain the question to me. I want to make a good grade. It's a Lab Report. I know it's a lot and I thank anyone who has the time to help me.

This is the data that I collected in the lab.

Mass of NaC2H3O2 used to prepare buffer (grams) Buffer A.) .149 Buffer B.) 1.49

Volume of buffer prepared (mL) Buffer A). 100.0 Buffer B.) 100.0

Molar concentration of HC2H3O2 in buffer (M) Buffer A.)0.1 Buffer B.)1.0

Initial pH of buffer Buffer A.)3.92 Buffer B.) 3.21

Volume of 0.5 M NaOH to raise pH by 2 units (mL) Buffer A.)1.55 Buffer B.)15.00

Volume of 0.5 M HCl to lower pH by 2 units (mL) Buffer A.)2.45 Buffer B.) 14.25

Volume of 0.5 M NaOH at equivalence point (mL) Buffer A.)1.58 Buffer B.)20.08

This is the question.

Buffer capacity has a rather loose definition, yet it is an important property of buffers. A commonly seen definition of buffer capacity is: “The amount of H+ or OH– that can be neutralized before the pH changes to a significant degree.” Use your data to determine the buffer capacity of Buffer A and Buffer B. (Graphically, we can identify buffer capacity by the sudden change to a very steep slope.)

Phases, such as (l) or (aq), are optional.

I have no idea how to do this.

I'm lost, so can you help by explaining how to do this, please?

2SO3(g) <---> 2SO2(g) + O2(g)

At equilibrium, 0.180 mol of O2 is present. Calculate Kc.

Please explain.

Thank you in advance.

Kc = 0.0420

The concentrations of the products at equilibrium are [PCl3] = 0.200 M, and [Cl2] = 0.100 M. What is the concentration of the reactant, PCl5, at equilibrium?

Please explain.

Thank you in advance.

proceeds at a certain temperature until the partial pressures of H2O, H2, and O2 reach 0.0400 atm, 0.00700 atm, and 0.00650 atm respectively. What is the value of the equilibrium constant at this temperature?

Please explain.

Thank you in advanced,

the equilibrium concentrations were found to be

[H2S] = 0.250 M

[H2] = 0.310 M

[S8] = 0.750 M

What is the equilibrium constant for this reaction.

Please explain, thank you in advance.