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PLZ HELP I NEED THE ANSWERS NOW FOR A TEST
1. There are moles in 9.01 x 10^23 atoms.
none of the above
15
0.150
1.50
2. How many sulfur atoms are present in 41.8 moles of sulfur?
Question 2 options:
2.52 x 10^25 S atoms
6.94 x 10^29 S atoms
1.44 x 10^24 S atoms
4.18 x 10^25 S atoms
3.How many moles would 1.00 x 10^23 molecules of methane (CH4) represent?
Question 3 options:
1.66 moles
0.166 moles
0.0166 moles
none of the above
4.How many moles of iron (Fe) are in a sample of 7.91 x 10^23 atoms of iron?
Question 4 options:
1.31 mol Fe
0.761 mol Fe
7.91 mol Fe
47.6 mol Fe
5.How many oxygen atoms are present in 2.28 moles of nitric acid, HNO3?
Question 5 options:
7.39 x 10^23 O atoms
4.119 x 10^23 O atoms
4.12 x 10^24 O atoms
1.37 x 10^24 O atoms
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Answers: 2
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Chemistry, 22.06.2019 10:10, babyphoraaaaa
For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate, m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2
Answers: 3
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1. There are moles in 9.01 x 10^23 atoms.
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