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Alecsey [184]
3 years ago
5

Sodium has lost 2 electrons. What is its ion notation?

Chemistry
1 answer:
Gwar [14]3 years ago
7 0

Answer:

Na²⁺

Explanation:

lost 2 electrons, so its charge would be 2+. If it were to gain an electron, the charge would be negative.

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43.5

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What is the mass of 0.28 mole of iron?
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Your answer should be 15.68 grams.

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Calculate the volume in milliliters of a 0.420mol / L barlum chlorate solution that contains 25.0 g of barium chlorate (Ba(ClO 3
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<u>Answer:</u> The volume of barium chlorate is 195.65 mL

<u>Explanation:</u>

To calculate the volume of solution, we use the equation used to calculate the molarity of solution:

\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}

Given mass of barium chlorate = 25.0 g

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Volume of solution = ?

Putting values in above equation, we get:

0.420mol/L=\frac{25.0\times 1000}{304.23\times V}\\\\V=\frac{25.0\times 1000}{304.23\times 0.420}=195.65mL

Hence, the volume of barium chlorate is 195.65 mL

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