Chemistry, 07.02.2021 01:00 jordanjones022
1) Qual é a massa de NaOH contida em 1 Kg de solução a 45% em massa. Sabendo que sua
densidade é 1,5 gmL-1
, qual sua concentração em quantidade de matéria (mol/L)?
Answers: 3
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How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)
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Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".
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What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.
Answers: 1
1) Qual é a massa de NaOH contida em 1 Kg de solução a 45% em massa. Sabendo que sua
densidade é 1,...
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