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A 12.7 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If 24.3 mL of 0.214 M barium hydroxide are required to neutralize the hydroiodic acid, what is the percent by mass of hydroiodic acid in the mixture? % by mass

A 12.7 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If 24.3 mL of 0.214 M barium hydroxide are required to neutralize the hydroiodic acid, what is the percent by mass of hydroiodic acid in the mixture? % by mass

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Please answer both questions
A 12.7 g sample of an aqueous solution of **hydroiodic acid** contains an unknown amount of the acid. If 24.3 mL of 0.214 M **barium hydroxide** are required to neutralize the hydroiodic acid, what is the percent by mass of **hydroiodic acid** in the mixture? [ ] % by mass
Transcribed Image Text:A 12.7 g sample of an aqueous solution of **hydroiodic acid** contains an unknown amount of the acid. If 24.3 mL of 0.214 M **barium hydroxide** are required to neutralize the hydroiodic acid, what is the percent by mass of **hydroiodic acid** in the mixture? [ ] % by mass
**Problem Statement:** How many mL of **0.532 M HNO₃** are needed to dissolve **6.57 g of MgCO₃**? **Chemical Reaction:** \[ \text{2HNO}_3(\text{aq}) + \text{MgCO}_3(\text{s}) \rightarrow \text{Mg(NO}_3\text{)}_2(\text{aq}) + \text{H}_2\text{O(l)} + \text{CO}_2(\text{g}) \] **Calculation Box:** \[ \boxed{\phantom{x}} \, \text{mL} \]
Transcribed Image Text:**Problem Statement:** How many mL of **0.532 M HNO₃** are needed to dissolve **6.57 g of MgCO₃**? **Chemical Reaction:** \[ \text{2HNO}_3(\text{aq}) + \text{MgCO}_3(\text{s}) \rightarrow \text{Mg(NO}_3\text{)}_2(\text{aq}) + \text{H}_2\text{O(l)} + \text{CO}_2(\text{g}) \] **Calculation Box:** \[ \boxed{\phantom{x}} \, \text{mL} \]
Expert Solution
Step 1

Given : 

For question 1 : 

Mass of hydroiodic sample = 12.7 gm 

Volume of barium hydroxide sample = 24.3 ml 

Concentration of barium hydroxide sample = 0.214 M 

For question 2 : 

Concentration of HNO3 = 0.532 M 

Mass of MgCO3 = 6.57 g 

 

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