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Svet_ta [14]
2 years ago
6

What is the mass of 0.5 moles of NaCl

Chemistry
2 answers:
jeka57 [31]2 years ago
8 0

Answer:

29.25 g

Explanation:

mole =  \dfrac{mass}{molar \: mass}

mass = 0.5 × 58.5 [ 23 + 35.5]

= 29.25 gm

Debora [2.8K]2 years ago
6 0

Answer:

29.25g

Explanation:

m=0.5×(23+35.5)

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4P+ 5O2 -> P4O10
Ratling [72]
If 4 moles of P is used by 5 mole of O2
then....0.489 moles will be used by 5/4 × .489 = .611 moles of O2

so .611 moles

so if 4 moles of P is burnt , 1 mole of P4O10 is produced ....so for .489 moles...... .489/4=.122 moles !
so mass will be .122× 283.89 = 34.7 grams

so first ans is .611 moles and second is 34.7 grams !

if you have any problem regarding this , just comment !!!
4 0
3 years ago
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Travka [436]

Answer:

<h3>The answer is 900 J</h3>

Explanation:

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From the question we have

PE = 45 × 10 × 2

We have the final answer as

<h3>900 J</h3>

Hope this helps you

5 0
3 years ago
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2 years ago
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The correct answer ; coal
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