Secure https session masteringchemistry.co ations concentration of a solution us

Question

Secure https session masteringchemistry.co ations concentration of a solution using acid-base titration, an acid (or base) of known added to a base (or acid) of unknown til the number of moles of H and OH are n called the equivalence point. Since you know oles of H (or OH hat you added, you can umber of moles of OH (or H n the unknown solution containing 1 mol of H2 SOA contains le hydrogen atoms, and would therefore require for neutralization. Part A How many moles of Ba(oH)2 are present in 235 mL of 0.200 M Ba(OH)2? Express your answer numerically in moles. 4.70x10 mol Ba (OH) Hints My Answers Give Up Review Part Submit Correct Part B How many moles of HNO3 are present if 4.70x10 2 mol of Ba(oH)2 was needed to neutralize the acid solution? Express your answer numerically in moles. 9.40x10 mol HNO Submit Hints My Answers Give Up Review Part Correct Part C What is the concentration of HNO3 if 9.40x10 2 mol are present in 855 mL of the solution? Express the molar concentration numerically. Submit Hints My Answers Give Up Review Part previous l 11 of

Explanation / Answer

Part C

no of moles of HNO3 = 9.4 * 10-2 mol

Volume of solution = 855 mL = 0.855 L

concentration = no of moles / volume (in L) = 9.4 * 10-2 / 0.855 = 0.1099 M

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