By definition molarity of a solution ,M is number of moles of solute dissolved in 1 liter of solution
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Molar mass of NaBr = 102.89 g/mol
Molar mass of KOH = 56.1 g/mol
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a)
V = volume of solution in ml
mass of solute = (0.1 * 102.89 g/mil * 200 ml) /1000
= 2.058 g
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b ) Similarly mass of KOH , m is calculated as follows-------------------
m = (0.2 M * 56.1 g/mol * 250 ml ) / 1000
= 2.805 g
OF 16.2 percent Uy HSS SUTULUI. (10) Calculate the number of e of solute that would be needed to make each of the f...
Homework Assignment #6 Solutions (Due date: November 5th, 2019) (1) What is molarity, and what is molality? (1) Calculate the amount of water (in grams) that must be added to 5.00 g of urea (NH2)2CO in the preparation of a 16.2 percent by mass solution. (III) Calculate the number of g of solute that would be needed to make each of the following solutions: (a) 2.00 x 102 mL of 0.100 M NaBr (b) 2.50 x 10 mL of 0.200...
1.
calculate the number of g of solute to make 2.50x10^2 mL of 0.200 M
KOH.
2. Calculate the volume of a 1.00x10^-2 M KOH
solution containing 3x10^-1 mol of solute.
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