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9966 [12]
3 years ago
5

Given 50g of sodium how many moles do you have? ​

Chemistry
1 answer:
Anastaziya [24]3 years ago
5 0

Answer:

Amount of Na = 2.17moles

Explanation:

Mass of Na = 50g

Molar mass of Na = 23g/mol

Amount of mole = mass/molar mass

Amount of mole = 50/23

Amount of mole = 2.17moles

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Newton's 1st Law.

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A student puts 0.020 mol of methyl methanoate into an empty and rigid 1.0 L vessel at 450 K. The pressure is measured to be 0.74
stellarik [79]

Explanation:

Starting moles of ethanol acid = 0.020 mol

At the equilibrium 50 % of the ethanol acid molecules reacted

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Therefore at the equilibrium total moles of gas present in the vessel are 0.010 mol CH3COOH and 0.005 mol (CH3COOH)^{2}

That is total gas moles at equilibrium = 0.010 mol + 0.005 mol = 0.015 mol

Now Calculate the pressure  :

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P1/n1 = P2/n2

P2 = P1*n2 / n1

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4 0
3 years ago
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<u>=</u><u> </u><u>1</u><u>2</u><u>6</u><u> </u><u>g</u>

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Help please thank you so muchhh
anzhelika [568]

  • <em>NH</em> <em> </em><em>at </em><em>5</em><em> </em><em>atm</em>

³

<h2><em>hope</em><em> it</em><em> helps</em><em>!</em></h2>

<em>correct</em><em> me</em><em> if</em><em> </em><em>I'm</em><em> </em><em>wrong</em>

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3 years ago
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