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, 21.06.2019 20:30
The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?
Answers: 2
Chemistry, 22.06.2019 02:00
The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
Answers: 3
Chemistry, 22.06.2019 07:40
The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder
Answers: 3
Chemistry, 22.06.2019 19:30
Describe the forces both attractive and repulsive that occur as two atoms move closer together.
Answers: 1
1. In a laboratory experiment, an undergraduate student collected a sample of ammonium
phosphate. I...
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