In Order To Answer The Following Question Pls Look At The Pic Below Part 1 (0.3
ID: 547799 • Letter: I
Question
In Order To Answer The Following Question Pls Look At The Pic Below
Part 1 (0.3 point) i See Periodic Table See Hint A solution is created by dissolving 11.5 grams of ammonium chloride in enough water to make 235 mL of solution. How many moles of ammonium chloride are present in the resulting solution? moles of NH CI Part 2 (0.3 point) See Hint the concentration or molarity of the solution. Molarity When thinking about the amount of solute present in a solution, chemists report t is calculated as moles of solute per liter of solution.What is the molarity of the solution described above? SUBMIT ANSWER 01:18 > OOF 18 QUESTIONS COMPLETED
Explanation / Answer
Q1
m = 11.5 g of NH4Cl present in
V = 235 mL of solution
get moles of NH4Cl
mol = mass/MW = 11.5/53.4915 = 0.21498
mol of NH4Cl = 0.21498
Q2
find molarity
molarity = mol of solute / Volume of solution
M = 0.21498 / (0.235) = 0.91480 M
Q3
n = 0.05 mol of NH4Cl required, then, find V
M = mol/V
V = mol/M = 0.05 /0.91480 = 0.05465 L
V = 0.05465*10^3 = 54.65 mL
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