Water can form a solution by mixing with:
2 answers:
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Answer:- 2.39 mL are required.
Solution:- It's a dilution problem and to solve this type of problems we use the dilution equation:
Where, and
are molarities of concentrated and diluted solutions and
and
are their respective volumes.
= 1.10M
= 5.00mM = 0.005M (since, mM stands for milli molar and M stands for molar. 1M = 1000mM)
= ?
= 525 mL
Let's plug in the given values in the formula:
So, 2.39 mL of 1.10M are needed to make 525 mL of 5.00mM solution.
The empirical formula for the given compound has been . Thus, option C is correct.
The empirical formula has been the whole unit ratio of the elements in the formula unit.
<h3>Computation for the Empirical formula</h3>The given mass of Sulfur has been, 50.05 g
The given mass of oxygen has been 49.95 g.
The moles of elements in the sample has been given by:
- Moles of Sulfur:
The moles of sulfur in the unit has been 1.56 mol.
- Moles of Oxygen:
The moles of oxygen in the unit has been 3.12 mol.
The empirical formula unit has been given as:
Thus, the empirical formula for the given compound has been . Thus, option C is correct.
Learn more about empirical formula, here: