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blagie [28]
3 years ago
11

Where do the electrons come from that produce heat and light in a light bulb?

Chemistry
1 answer:
Sergio [31]3 years ago
8 0
Electrical energy is converted to waste heat. I’m not sure but this is what I think...
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An aqueous sodium acetate, NaC2H3O2 , solution is made by dissolving 0.395 mol NaC2H3O2 in 0.505 kg of water. Calculate the mola
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<u>Answer:</u> The molality of NaC_2H_3O_2 solution is 0.782 m

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Molality is defined as the amount of solute expressed in the number of moles present per kilogram of solvent. The units of molarity are mol/kg. The formula used to calculate molality:

\text{Molality of solution}=\frac{\text{Moles of solute}}{\text{Mass of solvent (in kg)}} .....(1)

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Moles of NaC_2H_3O_2 = 0.395 mol

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\text{Molality of }NaC_2H_3O_2=\frac{0.395mol}{0.505kg}\\\\\text{Molality of }NaC_2H_3O_2=0.782m

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