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Author Question: The density of air under ordinary conditions at 25 C is 1.19 g L-1. How many kilograms of air are in ... (Read 60 times)

abarnes

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on: Jul 8, 2021

Question 1

The definition of pH is pH = -log[H3O+], where [H3O+] is the hydronium ion concentration.
If [H3O+] = 1.2 × 10-5, the pH, expressed to the correct number of significant figures, is:
◦ 4.92
◦ 4.9
◦ 5.08
◦ 5.1

Question 2

The density of air under ordinary conditions at 25 °C is 1.19 g L-1. How many kilograms of air are in a room that measures and has a 8.00 ft ceiling? (exactly); )
◦ 2.93
◦ 0.121
◦ 3.26 × 104
◦ 0.0770
◦ 32.6
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by abarnes on Jul 8, 2021

macagn

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Reply #1 on: Jul 8, 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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abarnes

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Reply 2 on: Jul 8, 2021
Excellent

essyface1

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Reply 3 on: Yesterday
Gracias!

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