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Cerrena [4.2K]
3 years ago
11

What is the mass of 1.25 moles of Na2O?​

Chemistry
1 answer:
olga_2 [115]3 years ago
4 0

Answer:

Explanation:

I have the same question

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Calculate the solubility of Mg(OH)2 in water at 25 C. You'll find Ksp data in the ALEKS Data tab. Round your answer to significa
elena-s [515]

Answer:

1.12 × 10⁻⁴ M

Explanation:

Step 1: Write the reaction for the solution of Mg(OH)₂

Mg(OH)₂(s) ⇄ Mg²⁺(aq) + 2 OH⁻(aq)

Step 2: Make an ICE chart

We can relate the solubility product constant (Ksp) with the solubility (S) through an ICE chart.

       Mg(OH)₂(s) ⇄ Mg²⁺(aq) + 2 OH⁻(aq)

I                                0                    0

C                              +S                +2S

E                                S                  2S

The solubility product constant is:

Ksp = 5.61 × 10⁻¹² = [Mg²⁺] × [OH⁻]² = S × (2S)² = 4S³

S = 1.12 × 10⁻⁴ M

8 0
3 years ago
Molar mass is measured in units of
blsea [12.9K]
D. grams/ mole.
........
5 0
3 years ago
Which of the following is NOT a unit energy? (select all that applies)
never [62]

Answer:

Kelvin, Celsius, Fahrenheit

Explanation:

See my other answer for an explanation.

4 0
3 years ago
Read 2 more answers
Which of these happens when the warm water gets to the North and South Poles
Airida [17]

Answer:It creates a heat source on the cold water and the molecules act against each other and then it becomes steam.

Explanation:I had to take this on a test.

6 0
2 years ago
Animals and humans obtain the energy they need from what?
zhannawk [14.2K]

Answer:

A. Food

Explanation:

Water alone does not give energy, Carbon Dioxide cannot be consumed healthily, and photosynthesis is for plants.

3 0
3 years ago
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