Which of these is a compound? Carbon, carbon dioxide, air, oxygen
2 answers:
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Answer:
The molarity will be "0.43 M" and molality will be "0.43 m".
Explanation:
Given that:
mass of NaCl,
= 25 g
Volume of solution,
= 1 L
Density of solution,
= 1 gm/cm³
Now,
The weight of solvent will be:
=
=
=
The mole of NaCl will be:
=
=
=
hence,
The molarity will be:
=
=
=
The molality will be:
=
=
=
Answer:
3 mol H2/2 mol N2
Explanation:
Mole ratios are basically from the numbers/coefficients in front of the element
