Question

how many g/ml of nacl are contained in 0.250(M) soln​

Answer 1

Approx.  

6

⋅

g

of salt.

Explanation:

Concentration

 

=

 

Moles of solute

Volume of solution

And thus,  

moles of solute

=

concentration

×

volume of solution

.

So,  

moles

 

=

 

350

×

10

−

3

⋅

L

×

0.287

⋅

m

o

l

⋅

L

−

1

=

0.100

⋅

m

o

l

.

And  

mass of salt

 

=

 

0.100

⋅

m

o

l

×

58.44

⋅

g

⋅

m

o

l

=

?

?

g

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