Chemistry, 07.04.2021 15:30 alanis337455p4xzek
1. In a laboratory experiment, an undergraduate student collected a sample of ammonium
phosphate. If the sample contains 9.52 x 10 25 molecules, how many grams of the sample did he
collected?
2. Determine the % composition for each element in Al 2 (SO 4 ) 3 ?
3. You have a 136.28 g sample of Beryllium Fluoride what is the mass of
a. Beryllium in the sample:
4. Find the empirical formula of a compound containing 3.160 g of Aluminum, 4.850 g of sulfur
and 8.680 g of oxygen?
5. Find the molecular formula if the empirical formula is C 2 H 3 O 2 and the molar mass is 105.1
g/mol.
Answers: 3
Chemistry, 22.06.2019 02:40
How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2
Answers: 1
Chemistry, 22.06.2019 14:40
Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products
Answers: 2
1. In a laboratory experiment, an undergraduate student collected a sample of ammonium
phosphate. I...
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