# Why is it important to differentiate elements and compounds?

Answers: 1

## Answers

Why is it important to differentiate elements and compounds?...

Answers: 1

Why is it important to differentiate elements and compounds?...

answer:

because it's needed

Explanation:

easy as tht

Hello!

I have 345 mL of a 1.5 M naCl solution if i boil the water until the volume of the solution is 250 mL what will be the molarity of the solution?

We have the following data:

M1 (molar concentration or initial molarity) = 1.5 M

V1 (solution volume or initial volume) = 345 mL

V2 (solution volume or final volume) = 250 mL

M2 (molar concentration or final molarity) = ? (in M )

Using the concentration dilution formula, we have:

_______________________

It is stated that 1 atm = 760mmHg = 760 torr = 101.325kPa so now we can convert the given pressure to the following units using dimensional analysis.

A. 99.8kPa to mmHg

101.325kPa = 760 mmHg

so 99.8 kPa x (760mmHg / 101.325kPa)

=748.56mmHg

B. 99.8kPa to torr

101.325kPa = 760 torr

99.8kPa x (760torr/ 101.325kPa)

=748.56torr

C. 99.8kPa to atm

1 atm = 101.325kPa

99.8kPa x ( 1 atm/ 101.325kPa)

=0.98 atm