Question
500cm^3 of copper chloride solution contains 6.50 g of copper chloride. Calculate the mass of copper chloride in 40.0cm^3 of this copper chloride solution. __ Mass=
Answer
3.7
(305 Votes)
Gideon
Professional · Tutor for 6 years
Answer
0.52 g
Explanation
This question involves the concept of proportions from chemistry. Given a certain mass of a substance (in this case, copper chloride) suspended in a specific volume of solution, we can equate the ratio of mass to volume at this initial state to the ratio at any other given state. Mathematically this can be expressed as follows: Mass_of_Substance1/Volume_of_Solution1 = Mass_of_Substance2/Volume_of_Solution2. Rearranging, we conclude that the Mass_of_Substance2 = (Mass_of_Substance1 * Volume_of_Solution2) / Volume_of_Solution1. The mass of copper chloride in the initial 500cm³ solution is given as 6.5g. We need to find out how much copper chloride is within a smaller 40cm³ of that same solution