# Chemistry

posted by .

1. What is the molarity of a solution if 48.0 mL of a 0.220 M solution is required to neutralize a 25.0-mL sample of the solution?

2. The mixing of which pair of reactants will result in a precipitation reaction?

K 2SO4(aq) + Hg2 (NO3)2(aq)

CsI(aq) + NaOH(aq)

HCl(aq) + Ca(OH)2(aq)

NaNO3(aq) + NH4Cl(aq)

• Chemistry -

1. Hmmmm. Cannot be determined. Assuming one is acid and one is base, the immediate question is that a mole does not neutralize a mole: one could be di or tri protic. You have to have a balanced equation. Frankly, I like to work with Normal solution on these.

2. Look at your solubility rules, for instance: on the first, all potassium compounds are soluble, but not all mercury: is Mercury(II)sulfate soluble?

Memorize those rules, millions before you have done the same.

• Chemistry -

Ok, great! Thank you.

Sorry about question 1, I left out the full question. This is it:

What is the molarity of a NaOH solution if 48.0 mL of a 0.220 M H2SO4 solution is required to neutralize a 25.0-mL sample of NaOH solution?

• Chemistry -

2NaOH + H2SO4 --> Na2SO4 + H2O

moles H2SO4 = M x L
moles NaOH = 2x moles H2SO4
Molarity NaOH = moles NaOH/L NaOH.

## Similar Questions

1. ### Chemistry

determine the approximate molarity of a solution of NaOH prepared by diluting 10ml of 6M NaOH to a volume of 400 ml. using the solution in the first part, 24.5ml of NaOH solution was required to neutralize 26.4ml of a .150M HCl solution. …
2. ### ap chemistry

please explain titration problems. I'm a total noob at this and am trying to answer some prelab questions. Examples: 1. How many mL of a 0.800 M NaOH solution is needed to just neutralize 40 mL of a 0.600 M HCl solution?

Please help. I have no idea how to do these 4 homework problems. 1- How many milliliters of 0.140 M HCl are needed to completely neutralize 42.0mL of 0.106 M Ba(OH)2 solution?
4. ### chemistry

220 ml of an HCl solution that is 31.4% by mass is required to neutralize .50 gal of the chlorine solution. what is the molarity of the OH- of the clorine solution?
5. ### chemistry

1. if 15.0mL of 4.5 M NaOH are diluted with water to a volume of 500mL, what is the molarity of the resulting solution?
6. ### chemistry

In a titration experiment, 22.00mL of a NaOH solution are required to neutralize 24.02 mL of a 0.1094 M HCL solution. what is the molarity of H+ in the HCL solution?
7. ### chemistry help asap

Please check these thanks. 1. In a titration, 33.21 mL 0.3020M rubidium hydroxide solution is required to exactly neutralize 20.00 mL hydrofluroic acid solution. What is the molarity of the hydrofluroic acid solution?
8. ### chemistry

if 36.23mL of a standard 0.1959M NaOh solution is required to neutralize 25.00mL of H2SO4. what is the Molarity of the acid solution, balance the equation. Please help with calculation. Thank you for your help.
9. ### Chem

1. What is the molarity of a copper(II) dihydroxide [Cu(OH)2] solution if 25.25 mL of the solution is titrated to the equivalence point with 36.18 mL of 0.549 M prussic acid [H(CN)]?
10. ### Chemistry

A solution of 0.316 M KOH is used to neutralize 16.0 mL H3PO4 solution H3PO4(aq) + 3KOH(aq) ¨ K3PO4(aq) + 3H2O(l) If 30.3 mL KOH solution is required to reach the endpoint, what is the molarity of the H3PO4 solution?

More Similar Questions