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3 years ago

Determine the molar mass of the ionic compound sodium hydroxide. (1 point)

1 answer:

3 0

Sodium - 22.989 - 23
Hydrogen - 1.007 - 1
Oxygen - 15.9994 -16
NaOH - 39.997- 40

It is 39.997 but when rounded it is 40

Hope this helps :)

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There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In

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The net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide is 523.2 kJ.

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$CaC_2(s) + 2H_2O(g)\rightarrow C_2H_2(g) + Ca(OH)_2(s),\Delta H_1=414.0 kJ$ ...[1]

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$6C_2H_2(g) + 3CO_2(g) + 4H_2O(g)\rightarrow 5CH_2CHCO_2H(g) \Delta H_2=132.0kJ$ ..[2]

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$6CaC_2(s) + 12H_2O(g)\rightarrow 6C_2H_2(g) + 6Ca(OH)_2(s)$

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$6CaC_2(s) + 8H_2O(g)+3CO_2(g)\rightarrow 5CH_2CHCO_2H(g)+ 6Ca(OH)_2(s),\Delta H'=?$

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3 years ago

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3p: 0
4s: 0
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