Calculate the molar concentration of a solution containing 3.0 moles of NaCl in 325 milliliters of water.

The molarity of the solution is 0.617 M.

Explanation:

Let's use this equation:

Okay, so we have a bit of work to do! The volume is given in terms of mL and we have to convert that to L by using the following conversion factor:

1

L

=

1000

m

L

350

mL

×

1

L

1000

mL

=

0.350

L

Now we have to express NaCl in terms of moles. We can do this by using the molar mass of NaCl (58.44 g/mol) as a conversion factor.

12.6

g

×

1

m

o

l

58.44

g

=

0.216

m

o

l

Now we can divide the moles by the volume to obtain the molarity like this:

M

o

l

a

r

i

t

y

=

0.216

m

o

l

0.350

L

M =0.617Explanation:

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

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