Chemistry, 31.01.2020 22:03 tdahna0403
Samples of three different compounds were analyzed and the masses of each element were determined.
compound mass n
(g) mass o
(g)
a 5.6 3.2
b 3.5 8.0
c 1.4 4.0
if you were john dalton and had never heard of a mole, which of the following would you think were possible sets of formulas for the compounds a, b, and c, respectively?
check all that apply.
check all that apply.
no2, no8, no10
n2o, n2o4, n2o5
no, no2, no4
no4, no10, no5
Answers: 2
Chemistry, 22.06.2019 10:50, lejeanjamespete1
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 18:30, losalobos46
The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false
Answers: 1
Samples of three different compounds were analyzed and the masses of each element were determined.
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