2. What is the definition of normality (we\'re talking solution here)? of your a

Question

2. What is the definition of normality (we're talking solution here)? of your answer, explain the difference between the molarity and normality of a solution of sulfuric acid H2So. (av per Normality is f reach Molarity is the of moles of solute The normality of H2SO4 is times the m of H2so4. 3. Molarity is only one of many ways to express concentrations. is Another percent mass per volume or (m/v). For example, vinegar usually contains about 5% (m/v) acetic acid (5g acetic acid/100 mL vinegar). Calculate the molarity of acetic acid in a vinegar that is 5.5% (m/v) acetic acid. The molecular formula of acetic acid is caH4o t 4. You are titrating 30.0 mL of an unknown concentration of HNO3 with a MNaoH standard solution. If 13.7 mL of standard are needed to reach he end point, what is the concentration of the unknown HNO, solution?

Explanation / Answer

3) the solution is 5.5% m/v solution.

This means 5.5 g of acetic acid is present in 100 mL of solution.

thus number of moles of acetic acid = 5.5g/60g/mol

= 0.09167 moles

we have Molarity = number of moles /Volume of solution (L)

= 0.09167 moles/0.100L

= 0.9167 M or 0.9167 mol/L

4) mmoles of acid = moles of base at neutralization

30 mL x M = 0.15 Mx13.7mL

Thus mmolarity of acid = 0.0685 M

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