alts Tools Window Help Ba Masteringchemistry: Homme x Acceptable units httpstlis

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alts Tools Window Help Ba Masteringchemistry: Homme x Acceptable units httpstlisession mastering chemistry emistry 1201 Spring 2017 Dr Kizilkaya com/myotitemview?assignmentproblemID-701 c q search mework Chapter 4 Problem 4,103 Problem 4.103 previous l 18 of 18 Part A strontium hydroxide solution is prepared by dissolving 1040 gofsr(oH,in water to make 6600ml of What is the molary of this solution? Express your answer to four significant figures and include the appropriate units. Ga 0.0055 mol Mh Answers Gre up Incorrect: Try Again; 5 attempts remaining Part B Next the strontium hydroxide solution prepared in part (a) is used to ttrate a nitic acid solution of unknown concentration write a baianoed represent the reaction between strontium hydroxide and nitic acid solutions Express your answer as a chemical equation. ldentify all of the phases in your answer. 888 20 rs

Explanation / Answer

m = 10.4 g of Sr(OH)2

MW = 121.63

mol = mass/MW = 10.4/121.63 = 0.08550 mol of Sr(OH)2

V = 65 ml = 65/1000 L = 0.065 L

then

[Sr(OH)2] = mol/L = 0.08550 /0.065 = 1.31 M

b)

HNO3 + Sr(OH)2 = H2O + Sr(NO3)2

the balanced equation

2HNO3 + Sr(OH)2 = 2H2O + Sr(NO3)2

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