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Author Question: If 0.66 mole of a substance has a mass of 99 g, what is the molecular mass of the substance? (Read 120 times)

connormoss

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on: Nov 5, 2023

Question 1

How many moles of phosphine (PH3 ) are produced for every 4.0 moles of hydrogen that react according to the chemical equation below?
         3H2 + P2→ 2PH3


Question 2

If 0.66 mole of a substance has a mass of 99 g, what is the molecular mass of the substance?
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by connormoss on Nov 5, 2023

bainer89

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Reply #1 on: Nov 5, 2023
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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connormoss

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Reply 2 on: Nov 5, 2023
:D TYSM

Joy Chen

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Reply 3 on: Yesterday
Excellent

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