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serg [7]
2 years ago
5

What mass of each solute is present in 294 g of a solution that contains 4.86% by mass NaCl and 7.54% by mass Na2CO3

Chemistry
1 answer:
Angelina_Jolie [31]2 years ago
7 0
In order to compute the mass of each solute in the sample, we simply multiply the percentage mass of each solute with the total mass of the solution. This is ad such:
Mass (NaCl) = 0.0486 x 294
Mass (NaCl) = 14.29 grams

Mass(Na₂CO₃) = 0.0754 x 294
Mass(Na₂CO₃) = 22.17 grams
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2 years ago
Given the following, determine ΔG°f at 298 K for SnO. Sn(s) + SnO2(s) → 2SnO(s) ; ΔG° = 12.0 kJ at 298K
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The value of change in Gibbs free energy for tin(II) oxide solid is -251.9 kJ/mol.

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\Delta G_{f,SnO}^{o}=-251.9 kJ/mol

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