CHEM HW help 4 Questions in an hour $10

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Question description

The gram solubility of pb(no3)2 is known to be 65g/100gH2O at 30 deg C

What is the molar solubility of this salt at this temperature

A 6.5M

B 2.15M

C 650 M

D 1.96 M

E 4.58 M

A solid Salt, AB2 is dissolved in pure water

If the concentration of B is measured to be 3.5E-4 M

What is ksp

A.  2.14E-11

B.  1.23E-7

C.  4.29E-11

D.  6.25E-7

Which of the following solutions when combined in the correct amounts could result in a buffer


NaOH  NaCl

HCl  NH4Cl


A 100.00 mL sample of 0.20 M HF is titrated with 0.10 M KOH.Determine the pH of the solution after the addition of 200.00 mL of KOH. The Ka of HF is 3.5 x 10-4

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