Question

question 17
a chemist combines water and acetic acid to make a mixture with a volume of 56milliliters(ml). the volume of acetic acid in the mixture is 10ml. what is the volume of water, in ml, in the mixture? (assume that the volume of the mixture is the sum of the volumes of water and acetic acid before they were mixed.)

question 18
each side of a square has a length of 45. what is the perimeter of this square?

Explanation:

Question 17

Step1: Identify the total - volume and acid - volume

Let the total volume of the mixture be $V_{total}=56$ mL and the volume of acetic acid be $V_{acid}=10$ mL.

Step2: Calculate the volume of water

We know that $V_{total}=V_{water}+V_{acid}$, so $V_{water}=V_{total}-V_{acid}$.
$V_{water}=56 - 10$

Step1: Recall the formula for the perimeter of a square

The perimeter $P$ of a square with side length $s$ is given by $P = 4s$.

Step2: Substitute the side - length value

Here, $s = 45$, so $P=4\times45$.
$P = 180$

Answer:

46

Question 18