Answer:
The molarity is 2M
Explanation:
First , we calculate the weight of 1 mol of NaCl:
Weight 1mol NaCl= Weight Na + Weight Cl= 23 g+ 35, 5 g= 58, 5 g/mol
58,5 g---1 mol NaCl
233,772 g--------x= (233,772 g x1 mol NaCl)/58,5 g= 4 mol NaCl
<em>A solution molar--> moles of solute in 1 L of solution:</em>
2 L-----4 mol NaCl
1L----x0( 1L x4mol NaCl)/4L =2moles NaCl---> 2 M
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I can't help you otherwise
Answer:
<h3>The answer is 30 cm³</h3>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula
![volume = \frac{mass}{density} \\](https://tex.z-dn.net/?f=volume%20%3D%20%20%5Cfrac%7Bmass%7D%7Bdensity%7D%20%5C%5C)
From the question
mass = 180 g
density = 6 g/cm³
We have
![volume = \frac{180}{6} \\](https://tex.z-dn.net/?f=volume%20%3D%20%20%5Cfrac%7B180%7D%7B6%7D%20%20%5C%5C%20)
We have the final answer as
<h3>30 cm³</h3>
Hope this helps you
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AN element is composed from atoms with the same number of protons,
A compound contain two or more different elements