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Lesechka [4]
3 years ago
11

What is the name of the formula MO2SO4

Chemistry
2 answers:
miskamm [114]3 years ago
7 0
The answer is molar mass to MO2SO4
Ugo [173]3 years ago
3 0
 <span>Molybdenum usually takes the +6 or +4 statse, so the normal molybdenum sulfates should be Mo(SO4)3, molybdenum(VI) sulfate, or Mo(SO4)2, molybdenum(IV) sulfate. If it took the charge +2, it would be MoSO4, molybdenum(II) sulfate. </span>
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Answer:

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3 years ago
If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol
igomit [66]

Answer:

\Delta _RH=4x10^{-3}\frac{kJ}{mol}

Explanation:

Hello,

In this case, the molar enthalpy of reaction is obtained by dividing the involved energy by the reacting moles:

\Delta _RH=\frac{12J}{3mol} =4\frac{J}{mol}

Thus, it is important to notice that the compound "uses" the energy, it means that it absorbs the energy, for that reason the sign is positive. Moreover, computing the result in kJ/mol we finally obtain:

\Delta _RH=4\frac{J}{mol}*\frac{1kJ}{1000J} =4x10^{-3}\frac{kJ}{mol}

Best regards.

5 0
3 years ago
The recommended daily allowance (rda of calcium is 1.2 g. calcium carbonate contains 12.0% calcium by mass. how many grams of ca
defon
1) Calcium carbonate contains 40.0% calcium by weight.
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3) The solution is:

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m(CaCO₃)=100.1g/mol*1.2g/40.1g/mol=3.0 g
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