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Darya [45]
3 years ago
13

Suppose that you measured out 3.50g of Na2SO4. how many moles would you have? (show work)​

Chemistry
1 answer:
Ket [755]3 years ago
5 0

Answer:

Na2SO4 is equal to 0.0070401642780093 mole.

Explanation:

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Water does not remain when an insoluble substance is added

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3 years ago
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The reaction 2a → a2​​​​​ was experimentally determined to be second order with a rate constant, k, equal to 0.0265 m–1min–1. if
olga nikolaevna [1]
According to the second order formula:
1/[At] = K t + 1/[Ao]
and when we have the K constant =0.0265 & we have t = 180 min & we have the initial concentration of A = 4.25 so by substitution:

1/[At]  = 0.0265 X 180min + 1/4.25 
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Is granite rock a compound, element, mixture? Explain
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It is a <u>mixture</u> of minerals mainly of corps that crystalizes of magma below earths surface.
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3 years ago
A reaction in which small nuclei combine to form a heavier nucleus is called______
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The answer to your question is: Nuclear fussion

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In Chemistry there are 2 nuclear processes:

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If 5 grams of hydrogen reacted with 40 games of oxygen to form water, how much of water would be formed?
GREYUIT [131]
2H₂ + O₂ = 2H₂O

n(H₂)=m(H₂)/M(H₂)
n(H₂)=5g/2.0g/mol=2.5 mol

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H₂ : O₂ = 2 : 1

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m(H₂O)=n(H₂O)M(H₂O)

m(H₂O)=2.5mol*18.0g/mol=45.0 g
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2 years ago
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