7. How many grams are in 2.75 moles of dinitrogen trioxide, N2
8. How many moles are in...
7. How many grams are in 2.75 moles of dinitrogen trioxide, N2
8. How many moles are in 25.8 grams of calcium phosphate, Ca3(PO4)2?
9. Determine the mass, in grams, of 2.51 x 1024of dinitrogen trioxide, N2O3
10. How many atoms are in a sample of Ca3 mass of 82.47 grams?
11. How many liters are in 4.99 moles of oxygen?
Find the percentage composition for the following compound:
12.sulfuric acid, H2SO4
Calculate the empirical formula for the following compound:
13. 32.4%, sodium, 22.5% sulfur, and 45.15% oxygen
Find the molecular formula for the following compound:
14. The compound has an empirical formula of CH2
and its molecular mass is 70.0 g/mol.
Answers: 1
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When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)
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How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar
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When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.
Answers: 1
Chemistry, 23.06.2019 07:40, wrestling2
What is the reduction potential of a hydrogen electrode that is still at standard pressure, but has ph = 5.65 , relative to the she?
Answers: 1
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