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natka813 [3]
4 years ago
6

A sample of seawater with a volume of 0.25 L

Chemistry
1 answer:
drek231 [11]4 years ago
5 0

Answer:

35g/L

Explanation:

From the question given, we obtained the following data:

V = 0.25L

Mass = 8.75g

The concentration in g/L is given by mass / volume

Conc. In g/L = 8.75/0.25 = 35g/L

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Describe the temperature changes that occur in ice as energy is added, starting in the frozen state and ending in the vapor stat
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Explanation:

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It is known that kinetic energy of a substance is directly proportional to temperature.

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                       T = temperature

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8 0
3 years ago
A balloon occupies 1.50 L with 0.205 mol of carbon dioxide. How many moles would be required to increase the size of the balloon
Gekata [30.6K]

Answer:

0.683 moles of the gas are required

Explanation:

Avogadro's law relates the moles of a gas with its volume. The volume of a gas is directely proportional to its moles when temperature and pressure of the gas remains constant. The law is:

V₁n₂ = V₂n₁

<em>Where V is volume and n are moles of 1, initial state and 2, final state of the gas.</em>

<em />

Computing the values of the problem:

1.50Ln₂ = 5L*0.205mol

n₂ = 0.683 moles of the gas are required

<em />

8 0
3 years ago
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