**Question:**What is the molarity of a solution that contains 42.6 g NH₃ in 0.50 L solution?**Options:**- A. 34 M- B. 5.0 M- C. 0.50 M- D. 0.029 M- E. 1.0 M**Explanation:**To find the molarity, use the formula:\[ \text{Molarity (M)} = \frac{\text{moles of solute}}{\text{liters of solution}} \]First, calculate the moles of NH₃. The molar mass of NH₃ is approximately 17.03 g/mol.\[ \text{Moles of NH₃} = \frac{42.6 \, \text{g}}{17.03 \, \text{g/mol}} \]Then, divide the moles by the volume of the solution in liters (0.50 L) to find the molarity.

We know that, Molarity = number of moles/volume in litre Number of moles = mass/molar mass Given, Mass of NH3 = 42.6 g Molar mass of NH3 = 14+3 = 17 g/mol Number of moles = 42.6/17 = 2.5058 mol Volume = 0.50 L Therefore, Molarity = 2.5058 mol / 0.50 L = 5.0116 mol/L So, the answer is => B. 5.0 M

Answered: What is the molarity of a solution that…

Science

Chemistry

What is the molarity of a solution that contains 42.6 g NH3 in 0.50 L solution? А. 34 М B. 5.0 M ОС. 0.50М O D. 0.029 M O E. 1.0 M

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...

See similar textbooks

Similar questions

A 2.0 L of benzene solution contains 10.0 g of toluene (C7H8). Calculate the molarity of the solution. a. 5.0 M b. 0.05 M c. 39 M d. none of these
A student prepares a stock solution 100 mL of 0.50 M copper (II) sulfate solution, which is blue in color.What volume of the stock solution is needed to prepare 60 mL of a 0.20 M copper (II) sulfate solution?a. 0.0012 mLb. 6 mLc. 24 mLd. 83 mL
A 10.0 g of Na2CO3 (106.0 g/mol) is dissolved in 75.0 mL of 0.300 M NaOH. What is the molarity of the Na* in the resulting solution? Assume the volume does not change. а. 1.56 М b. 2.82 M с. 3.12 М d. 5.33 M e. 0.929 M
Which will have the highest number of moles of sodium ion: 25.0 mL of 0.20 M NaCl, 20.0 mL of 0.15 M Na2CrO4, or 20.0 mL of 0.080 M Na3PO4? A. 20.0 mL of 0.080 M Na3PO4 B. The number of moles of sodium ion is equal in all of the given solutions. C. 20.0 mL of 0.15 M Na2CrO4 D. 25.0 mL of 0.20 M NaCl
What is the molarity of the solution prepared by diluting 35.0 mL of 1.25 M AgNO3 to each of the following final volumes? a. 50.0 mL b. 95.0 mL c. 975 mL d. 3.60 L
The molarity of a solution made by placing 98 grams of H2SO4 insufficient water to make 500. milliliters of the solution is? a. 0.5 b. 1 c. 2 d. 3
30. How many liters of solution contain 2.79 mol of KI if the concentration of the solution is 1.33 M in KI? a. 2.10 L b. 0.477 L с. 0.0168 L d. 3.71 L
4. What is the molarity of a solution of NaCl made from 116.0 g in 2000.0 mL? а. 1.000 М b. 2.000 M c. 0.0001 M d. 0.0002 M
What is the molarity of lithium ion in 1.22 M lithium phosphate, Li3PO4? a. 6.022 x 1023 M b. 4.88 M c. 3.66 M d. 1.22 M e. 5.23 M f. 2.44 M g. none of these
Solution A is prepared by dissolving 5.0 g of KCl in 95.0 g of water. Solution B is prepared by dissolving 10.0 g KCl in 90.0 g water. Which of the statements is true about soutions A and B? a. Solution B is more dilute than solution A. b. Solution A is less dilute than solution B. c. Solution B is more concentrated than solution A. d. Solution B is less concentrated than solutoin A.
For the following solutes, predict whether carbon tetrachloride, CCl4, or methanol, CH3OH, is a better solvent. a. NH3 b. Br2 c. C6H6 d. NaCl e. KNO3 f. H2O Classify the following compounds as insoluble (I) or soluble (S) in water. a. NH4Cl b. BaCO3 c. Li2S d. CuNO3 e. CaSO4 f. C12H22O11(sucrose) g. FePO4 h. PbCl2 i. Ca(C2H3O2)2
6.Find the Molarity of a solution that contains: a.0.500 moles KBr in 450.0 mL 0f solution. b.35.6 grams of KOH in 625.0mL solution.