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2 years ago

12

A student wishes to prepare 25mL of 0.1M NaOH from 6M NaOH.

1 answer:

liraira [26]2 years ago

7 0

Answer:

Na(OH)4

Explanation:

Look at the charges and add them up

Na(OH) Na(OH)

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Answer:

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Explanation:

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F = ma

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What is the mass of 5 mole of ammonia . Calculate the number of NH₃ molecules, nitrogen atom and hydrogen atoms in it..

Aloiza [94]

Molar mass of NH_3

$\\ \sf\longmapsto 14u+3(1u)$

$\\ \sf\longmapsto 14u+3u$

$\\ \sf\longmapsto 17g/mol$

We know.

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$\\ \sf\longmapsto Given\;Mass=17(5)$

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$\\ \sf\longmapsto N_2+3H_2=2NH_3$

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3moles of H_2
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Now

$\boxed{\sf No\:of\:Molecules =No\:of\;moles\times Avagadro\:no}$

For Hydrogen

$\\ \sf\longmapsto 3\times 6.023\times 10^{23}$

$\\ \sf\longmapsto 18.069\times 10^{23}$

$\\ \sf\longmapsto 1.8\times 10^{22}molecules$

For Ammonia

$\\ \sf\longmapsto 2\times 6.023\times 10^{23}$

$\\ \sf\longmapsto 12.046\times 10^{23}$

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$\\ \sf\longmapsto 1\times 6.023\times 10^{23}$

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2 years ago

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omeli [17]

Answer:

Answer -b

Explanation:

Brainliest pls

8 0

2 years ago

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