3 years ago

What is the molarity of a 2.0L solution that was made up with 4.0 moles of NaCl?

Chemistry

1 answer:

Finger [1]3 years ago

8 0

Answer:

[NaCl]: 2M

Explanation:

This solution is made of NaCl therefore:

Our solute is NaCl

Moles of solute: 4

Our solution's volume is 2L

Molarity are the moles of solute contained in 1L of solution (mol/L)

[NaCl]: 4 mol /2L = 2M

We can also make a rule of three:

In 2 L we have 4 moles of solute

So, In 1 L we must have (1 . 4) /2 = 2 M

You might be interested in

How do rivers affect watersheds?

beks73 [17]

Answer:

Explanation:

the last one I read it

5 0

2 years ago

Read 2 more answers

To prevent rust, nails are coated with ________. To prevent rust, nails are coated with ________. salt calcium lithium sodium zi

Arturiano [62]

Answer:

the answer to this question is zinc

7 0

3 years ago

Your science teacher gives you three liquids to pour into a jar. After pouring all of them into the jar, the liquids layer as se

sweet-ann [11.9K]

Answer:

density

Explanation:

6 0

3 years ago

9 How many grams of O₂ are needed to produce 15.5 g Fe₂O3 in the following reaction? Fe(s) + O₂(g) → Fe₂O3 (s)

Slav-nsk [51]

Answer:

Explanation:

so u can work out the amount of moles in FeO3 by doing mr of fe3o3 is 55.8*3+16*3=215.4

moles= mass/mr so you do 15.5g/215.4=0.0719 moles

then using 1 to 1 ratio so O2 moles is 0.0719

then use the equation mass=mole*mr

so 0.0719*16=1.15g

hope this make sense :)

8 0

3 years ago

Can you guys help me answer question 5 on homogeneous mixture tysm

hjlf

Answer:

Hope this helped :) good luck! ❤️

Explanation:

A coolant solution is a homogeneous mixture because the coolant particles are not chemically combined with the water (keep their properties) and they are evenly distributed throughout the water.

7 0

2 years ago