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Chapter 10: Q.10.110 (page 360)

A 0.312 M KOH solution is used to titrate 15 mL of an $H_{2} {SO}_{4}$ solution.
a. Write the balanced chemical equation.
b. What is the molarity of the $H_{2} {SO}_{4}$ solution if 28.2 mL of KOH solution is required?

Short Answer

Expert verified

Part (a). $H_{2} {SO}_{4} + 2 KOH 鈫� 2 H_{2} O + K_{2} {SO}_{4}$

Part (b). $0.29 M$

Step by step solution

01

Given Information (part a)

A chemical reaction is an interaction wherein at least one substance, likewise called reactants, is switched over completely to at least one distinct substance, known as items.

02

Explanation Part (a)

The balanced equation is,

$H_{2} {SO}_{4} + 2 KOH 鈫� 2 H_{2} O + K_{2} {SO}_{4}$

03

Explanation Part (b)

Given,

Molarity $M_{1}$ = $0.312$ KOH solution and Volumelocalid="1653994042886" $V_{1} = 15 m L$

Volumelocalid="1653994037112" $V_{2} = 28.2 m L$

Using,

$M_{1} V_{1} = M_{2} V_{2}$

molarity of the $H_{2} S O_{4}$ solution

localid="1653994060714" $= \frac{28.2 ml}{15 ml} 脳 \frac{0.312 mol}{1000 ml} 脳 \frac{1}{2} 脳 \frac{1000 ml}{1 L} = 0.29 M$

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Most popular questions from this chapter

After Larry had taken Nexium for 4 weeks, the $pH$ in his stomach was raised to 4.52. What is the $[H_{3} O^{+}]$ in his stomach?

State whether each of the following is acidic, basic, or neutral:

a. blood plasma. pH $1 7.38$

b. vinegar, $pH 2.8$

c. drain cleaner $p H 11.2$

d. coffee, $p H 5.52$

e. tomatoes, $p H 4.2$

f. chocolate cake, $p H 7.6$

Identify each of the following as an acid or a base: (10.1)

a. $H_{2} {SO}_{4}$

b. $RbOH$

c. $Ca (OH)_{2}$

d. $HI$

Determine the pH for the following solutions:

a. $[{OH}^{鈭�}] = 1.0 脳 10^{鈭� 7} M$

b. $[H_{3} O^{+}] = 4.2 脳 10^{鈭� 3} M$

c. $[H_{3} O^{+}] = 0.0001 M$

d. $[{OH}^{鈭�}] = 8.5 脳 10^{鈭� 9} M$

Determine if each of the following diagrams represents a strong acid or a weak acid. The acid has the formula HX. (10.3)

See all solutions

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