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Author Question: The molecular formula of aspirin is C9H8O4. How many aspirin molecules are present in one ... (Read 53 times)

jacob816

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on: Nov 5, 2023

Question 1

The mineral pyrolusite is a compound of 55Mn and 16O.  If 63% of the mass of pyrolusite is due to manganese, what is the empirical formula of pyrolusite?
◦ MnO
◦ Mn2O
◦ Mn2O2

◦ MnO2

◦ none of these

Question 2

The molecular formula of aspirin is C9H8O4.  How many aspirin molecules are present in one 500-milligram tablet?
◦ 2.77 molecules
◦ 2.77 × 10–3 molecules
◦ 1.67 × 1024 molecules
◦ 1.67 × 1021 molecules
◦ None of these is correct.
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by jacob816 on Nov 5, 2023

ryanb

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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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jacob816

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Reply 2 on: Nov 5, 2023
Excellent

xiazhe

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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