Chemistry
posted by Diana .
Calculate the amount of water (in grams) that must be added to (a)5.00 g of urea (NH2)2CO in the preparation of a 16.2 percent by mass solution, and (b)26.2g of MgCl2 in the preparation of a 1.5 percent by mass solution.

a)
[5.00/(5+x)] = 0.162
Solve for x.
Respond to this Question
Similar Questions

Chemistry
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at 0.085 degrees C. how many grams of urea were dissolved to make this solution. delta T = Kf*molality Plug in 0.085 for delta T, I assume you know Kf for water, … 
Chemistry
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at 0.085 degrees C. how many grams of urea were dissolved to make this solution. delta T = Kf*molality Plug in 0.085 for delta T, I assume you know Kf for water, … 
Chemistry
A 2.30 m solution of urea (CO(NH2)2; FW= 60.0) in water has a density of 1.14 g/mL. Calculate the percent mass of urea in this solution? 
Chemistry
A 2.30 m solution of urea (CO(NH2)2; FW= 60.0) in water has a density of 1.14 g/mL. Calculate the percent mass of urea in this solution 
chemistry
A 2.30 m solution of urea (CO(NH2)2; FW= 60.0) in water has a density of 1.14 g/mL. Calculate the percent mass of urea in this solution 
chemistry
if I have 1.60g of urea, how much water, in grams, should be added in the preparation of a 23.1 percent by mass solution? 
chemistry
calculate the amount of water in grams that must be added to 5.00 grams of urea (NH2)2 CO in the preparation of a 16.2 percent by mass, and 26.2 grams of MgCl2 in the preparation of a 1.5 percent by mass solution. 
CHEMISTRY
what is the percent by mass of solution (d =1,3g/ml) of urea ((NH2)2CO) with molarity 8,4mol/l? 
chemistry
Calculate the amount of water (in grams) that must be added to 5.00 g urea in preparation of 16.2% by mass solution. 
chemistry
Calculate the amount of water (in grams) that must be added to 5.00 g urea in preparation of 16.2% by mass solution.