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katrin2010 [14]
3 years ago
5

What is the concentration (m) of sodium ions in 4.57 l of a 2.35 m na3p solution?

Chemistry
2 answers:
White raven [17]3 years ago
7 0

Answer:

7.05 M

Explanation:

  • An equation can be written:

Na₃P → 3Na⁺ + P⁻³

  • The formula for concentration (M) is the number of moles divided by the volume in L:

C = n / V

With the concentration and volume given by the problem, we know the number of moles of Na₃P, then with that number we can calculate the moles of Na⁺:

4.57 L * 2.35 M = 10.7395 mol Na₃P

10.7395 mol Na₃P * \frac{3molNa^{+}}{1molNa_{3}P} = 32.2185 mol Na⁺.

Concentration of Na⁺ = mol Na⁺ / V

[Na⁺] = 32.2185 mol Na⁺ / 4.57 L = 7.05 M

Leokris [45]3 years ago
5 0
Answer: 1.03 x 10^25 ions Na
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a 1.642 g sample of calcium bromide is dissolved in enough water to give 469.1 mL of solution what is the bromide ion concentrat
aleksklad [387]

The bromide concentration in this solution of calcium bromide dissolved in enough water to give 469.1 mL is 1.75 × 10-⁵M.

<h3>How to calculate concentration?</h3>

The concentration of a solution can be calculated by dividing the number of moles of the substance by its volume.

No of moles of calcium bromide is calculated as follows:

moles = 1.642 ÷ 199.89 = 8.215 × 10-³moles

Molarity = 8.215 × 10-³moles ÷ 469.1mL = 1.75 × 10-⁵M

Therefore, the bromide concentration in this solution of calcium bromide dissolved in enough water to give 469.1 mL is 1.75 × 10-⁵M.

Learn more about concentration at: brainly.com/question/10725862

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2 years ago
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marshall27 [118]

Answer:A

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3 years ago
The water released by the reaction (mass = 0.00020 g) was calculated as was the
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Alenkinab [10]

Answer:

1. molarity is = 0.1174

2. molarity is = 9.3

3. molarity is =0.009392

Explanation:

Q#1.

mass of sucrose is 14.07g

molar mass of sucrose is 342 3g/mol

so, 14.07x1/342.3 = 0.0411

now the volume is of water is 0.35

so, 0.0411/0.35 = 0.1174

Q#2.

concentration is 4.5

so, 4.5x1/1000= 0.0045

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Q#3.

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and the volumetric flask is 500mL

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