Chemistry, 01.04.2020 13:36, genyjoannerubiera
Calculate the volume occupied by 272g
of methane at a pressure of 250 kPa and a
temperature of 54°C.
(R = 8.31JK-1 mol-1; M, methane = 16.0)
Answers: 3
Chemistry, 22.06.2019 08:30, ayaanwaseem
For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)
Answers: 2
Chemistry, 22.06.2019 12:00, daytonalive83481
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
Chemistry, 22.06.2019 23:00, lufung8627
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
Calculate the volume occupied by 272g
of methane at a pressure of 250 kPa and a
temperatur...
of methane at a pressure of 250 kPa and a
temperatur...
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