Question

1. a. how can we separate salt from water? include a diagram.

p29

b.
in the above diagram does the water evaporate?
in the above diagram does the salt evaporate?
what change of state does the water go to go through before it enters the beaker?

1. calculate the flow rate of oil if it takes 10 seconds for 300 ml to flow out of a syringe. ensure that you identify the variables, include the formula, and show all work and units.

flow rate = \underline{volume}

time

Explanation:

Step1: Identify variables

Volume = 300 mL, Time = 10 seconds

Step2: Apply flow rate formula

Flow rate = $\frac{\text{Volume}}{\text{Time}} = \frac{300\ \text{mL}}{10\ \text{s}}$

Step3: Calculate result

$\frac{300}{10} = 30$ mL/s

Answer:

30 mL/s