Question #134404
You will have a 500mL solution of salt water. From this you will take 10.0mL and place it on a balance. You find that the 10.0mL solution has a mass of 10.9 g. What is the density of the 500mL of salt water solution in g/mL? Please use the correct number of significant digits.
Expert's answer
1.To find the density of a solution, we divide its mass by its volume:
10.9gr/ 10ml= 1.09gr/ml
2. Or, first calculate the mass of 500 ml of solution and then find the density. but the result is the same:
10 ml — 10.9 gr
500 ml — x gr
x = 500*10.9/10=545 gr
Find is the dencity:
545 gr/ 500ml = 1.09 gr/ ml
ANSWER: 1.09 gr/ml
