#25 A&B **Transcription for Educational Website:**---### Chemistry Practice Problems**22. Calculate the molarity of each solution.**a. 0.38 mol of LiNO₃ in 6.14 L of solution b. 72.8 g C₆H₆O in 2.34 L of solution c. 12.87 mg KI in 112.4 mL of solution **23. What is the molarity of NO₃⁻ in each solution?** *MISSED THIS? Read Sections 5.2, 5.4; Watch KCV 5.2, IWE 5.1*a. 0.150 M KNO₃ b. 0.150 M Ca(NO₃)₂ c. 0.150 M Al(NO₃)₃ **24. What is the molarity of Cl⁻ in each solution?**a. 0.200 M NaCl b. 0.150 M SrCl₂ c. 0.100 M AlCl₃ **25. How many moles of KCl are contained in each solution?** *MISSED THIS? Read Section 5.2; Watch KCV 5.2, IWE 5.2*a. 0.556 L of a 2.3 M KCl solution b. 1.8 L of a 0.85 M KCl solution c. 114 mL of a 1.85 M KCl solution **26. What volume of 0.200 M ethanol solution contains each amount in moles of ethanol?**a. 0.45 mol ethanol b. 1.22 mol ethanol c. 1.2 × 10⁻² mol ethanol **27. A laboratory procedure calls for making 400.0 mL of a 1.1 M NaNO₃ solution. What mass of NaNO₃ (in g) is needed?** *MISSED THIS? Read Section 5.2; Watch KCV 5.2, IWE 5.2*--- This educational content provides practice problems related to calculating molarity, determining moles in solutions, and preparing specific concentrations for laboratory use. Students are encouraged to refer to the indicated textbook sections and videos if they encounter difficulties

We are given the volume and molarity of a KCl solution and we have to calculate the number of moles…

How many moles of KCl are contained in each solution? MISSED THIS? Read Section 5.2; Watch KCV 5.2, IWE 5.2 a. 0.556 L of a 2.3 M KCl solution b.1.8 L of a 0.85 M KCl solution c. 114 mL of a 1.85 M KCl solution

How many moles of KCl are contained in each solution? MISSED THIS? Read Section 5.2; Watch KCV 5.2, IWE 5.2 a. 0.556 L of a 2.3 M KCl solution b.1.8 L of a 0.85 M KCl solution c. 114 mL of a 1.85 M KCl solution

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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#25 A&B

**Transcription for Educational Website:**

---

### Chemistry Practice Problems

**22. Calculate the molarity of each solution.**

a. 0.38 mol of LiNO₃ in 6.14 L of solution
b. 72.8 g C₆H₆O in 2.34 L of solution
c. 12.87 mg KI in 112.4 mL of solution

**23. What is the molarity of NO₃⁻ in each solution?**
*MISSED THIS? Read Sections 5.2, 5.4; Watch KCV 5.2, IWE 5.1*

a. 0.150 M KNO₃
b. 0.150 M Ca(NO₃)₂
c. 0.150 M Al(NO₃)₃

**24. What is the molarity of Cl⁻ in each solution?**

a. 0.200 M NaCl
b. 0.150 M SrCl₂
c. 0.100 M AlCl₃

**25. How many moles of KCl are contained in each solution?**
*MISSED THIS? Read Section 5.2; Watch KCV 5.2, IWE 5.2*

a. 0.556 L of a 2.3 M KCl solution
b. 1.8 L of a 0.85 M KCl solution
c. 114 mL of a 1.85 M KCl solution

**26. What volume of 0.200 M ethanol solution contains each amount in moles of ethanol?**

a. 0.45 mol ethanol
b. 1.22 mol ethanol
c. 1.2 × 10⁻² mol ethanol

**27. A laboratory procedure calls for making 400.0 mL of a 1.1 M NaNO₃ solution. What mass of NaNO₃ (in g) is needed?**
*MISSED THIS? Read Section 5.2; Watch KCV 5.2, IWE 5.2*

---

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