topic 3b - concentrations (1. concentrations)

Question 1

what makes a solution concentrated

Answer 1

the more solute (the substance that is dissolved in the solution) the more concentrated a solution is.

Question 2

how to calculate the concentration

Answer 2

mass of solute (g)/ volume of solution

Question 3

how to figure out the uncertainty

Answer 3

calculate mean (x)
then find the range between your results and divide by 2 (y) 
the uncertainty is +-y
higher the range, higher the uncertainty