How many grams of solute would be needed to make 100 ml of a 0.25 M solution of sodium chloride? A 0.025 g
B 1.45 g
С
0.145 g
D
0.00043 g

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost