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zysi [14]
3 years ago
14

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

Chemistry
1 answer:
Rudik [331]3 years ago
5 0

Answer:

1.  C. helium

2.  D. oxygen and acetylene

3.  B.  deliquescence

4.  C.  cutting very hard surfaces

5.  B.  3.5%

Explanation:

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Calculate the molarity of a solution that contains 3.11 mol of NaNO3 dissolved in 2.50 L. Enter your answer in the provided box.
rusak2 [61]

Answer:

Molarity of a solution that contains 3.11 mol of NaNO3 is 1,24 M

Explanation:

We understand molarity as the number of moles of solute that are contained in 1 L of solution, then if in a solution of 2.50 L we have 3.11 moles, it remains to calculate how many moles do we have in 1 liter.

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