Chemistry, 30.01.2020 03:54, santosv3136
The molar heat of vaporization of water is 40.7kj/mol. how much heat must be absorbed to convert 50.0 grams of liquid water at 100oc to steam at 100oc?
a) 1.46 x 10 kj
b) 1.13 x 102kj
c) 2.04 x 103kj
d) 3.66 x 104kj
Answers: 2
Chemistry, 21.06.2019 20:30, ksalinas7404
Un cierto gas tiene un volumen de 800ml a 80°c y 600ml a 80°c y 600mmhg de presión. ¿cual será el volumen del gas a condiciones normales? sí el gas es oxígeno, ¿cuál será su peso? y ¿cuántas moléculas están presentes en el sistema?
Answers: 2
Chemistry, 22.06.2019 12:30, robert7248
What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h
Answers: 2
Chemistry, 22.06.2019 13:50, kelonmazon2492
Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
Answers: 3
The molar heat of vaporization of water is 40.7kj/mol. how much heat must be absorbed to convert 50....
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