The answer is 0.2 M.
Molarity is a measure of the concentration of solute in a solution
c = n ÷V<span>
c - concentration of solute,
n - number of moles of solute
V - volume of solution
</span>
We know:
V = 50.00 mL = 0.05 L
c = ?
n = ?
Let's calculate concentration:
c = m/(V * Mr)
The molar mass of <span>(NH4)2SO4 is the sum of atomic masses (Ar) of its elements):
Mr (</span><span>(NH4)2SO4) = 2Ar(N) + 8 Ar(H) + Ar(S) + 4Ar(O)
= 2 * 14 + 8 * 1 + 32 + 4 * 16 =
= 28 + 8 + 32 + 64 =
= 132 g/mol
c = 26.42 g/ (0.05 L * 132g /mol) =26.42 g/ 6.6 L*g/mol = 4 mol/L = 4 M
Now, calculate molarity:
</span>c = n ÷V
n = c * V
n = 4 mol/L * 0.05 L
n = 0.2 mol
Just by simply having a water temp.
I think the best statement to fill the blank is that "can be desalinized and used for drinking". The said statement seems the most appropriate one because the pH of saltwater is not 10 but approximately between 7.6 to 8.4. Also, saltwater is not found in glaciers, ice caps and aquifers instead it is freshwater.
Answer:
-4
Explanation:
In 0.0034 the zeros are preceding numberd and after the decimal point.
