Question

1. 90.0 mL of distilled water is added to a 10.0mL sample of 0.150mol/L sodium

chloride. The resulting solution can be described as more
a.dilute
b. concentrated
c. Acidic
d. basic

Answer 1

Answer: dilute

Step-by-step explanation:

A concentrated solution which is used to prepare solutions of lower concentrations by diluting it with addition of water.

A dilute solution is one which contains lower concentration.

Using Molarity equation:

`M_1` =concentration of stock solution = 0.150 mol/L

`V_1` = volume of stock solution = 10.0 ml

`M_2` = concentration of dilute solution = ?

`V_2` = volume of dilute solution = (10.0+90.0) ml = 100.0 ml

`0.150* 10.0=M_2* 100.0`

`M_2=0.015mol/L`

As the concentration is less than the original concentration, the solution is termed as dilute.