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klio [65]
2 years ago
9

Which of the following methods correctly describes the preparation of 1.00 L of an aqueous solution of 0.500 M NaOH?

Chemistry
1 answer:
djyliett [7]2 years ago
7 0

Answer:

Place 20.0 g NaOH(s) in a flask and dilute to 1.00 L with water.

Explanation:

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strong winds that blow in short spurts over a small distance

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2 years ago
I need answers to question 1,2,3
sashaice [31]

Answer:

1. 0.125 mole

2. 42.5 g

3. 0.61 mole

Explanation:

1. Determination of the number of mole of NaOH.

Mass of NaOH = 5 g

Molar mass of NaOH = 23 + 16 + 1

= 40 g/mol

Mole of NaOH =?

Mole = mass /molar mass

Mole of NaOH = 5/40

Mole NaOH = 0.125 mole

2. Determination of the mass of NH₃.

Mole of NH₃ = 2.5 moles

Molar mass of NH₃ = 14 + (3×1)

= 14 + 3

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Mass = mole × molar mass

Mass of NH₃ = 2.5 × 17

Mass of NH₃ = 42.5 g

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Mole of Ca(NO₃)₂ =?

Mole = mass /molar mass

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Mole of Ca(NO₃)₂ = 0.61 mole

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