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Author Question: A 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample ... (Read 234 times)

bobbie

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on: Mar 21, 2021

Question 1

A 20.0-g sample of methyl alcohol (CH3OH, molar mass = 32.04 g/mol) was dissolved in 39.0 g of water. The mole fraction of CH3OH is _____.

◦ 0.288
◦ 0.624
◦ 0.339
◦ 4.47
◦ 0.224

Question 2

A 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample containing 1.994 kg of water?

◦ 626.1 g
◦ 107.1 g
◦ 222.0 g
◦ 365.9 g
◦ none of these are correct
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Marked as best answer by bobbie on Mar 21, 2021

mbcrismon

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Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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bobbie

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Reply 2 on: Mar 21, 2021
Thanks for the timely response, appreciate it

peter

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Reply 3 on: Yesterday
Excellent

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