126 Answered Questions for the topic Moles

Moles Chemistry Chem

20d

chemistry/ how many moles
How many moles of NH₃ can be produced from 5.48 moles of nitrogen in the following reaction: N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) ?
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06/15/21

4NH3 + 5O2 = 4NO + 6H2O How many grams of Oz were required to make 10.00 grams of H20?

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06/15/21

4NH3 + 5O2 = 4NO + 6H2O How many moles of NO are produced if 6.96 grams of NH3 react with an excess amount of oxygen?

Grateful for any help! If you could explain the work that'd be helpful as well!
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06/15/21

4NH3 + 5O2 = 4NO + 6H2O How many grams of O2 are needed to completely react with 3.315 moles of NH3?

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06/15/21

4NH3 + 5O2 = 4NO + 6H2O If you made with 9.67 moles of H20, how many moles of NO were also produced?
Already balanced equation I keep getting this one wrong and I'm not sure if it's my setup or if I'm dividing something wrong. Grateful for any help given!
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06/11/21

Mass of CaCl2: 10,0 g Mass of Na2CO3: 10.0 g Actual amount collected: 2.00 g CaCO3 1. Write a balanced chemical equation.

A student performs a lab at school. They massed out both reactants and then mixed them together. The reaction produced a precipitate. They filtered out the product and took the mass of it. (I'm a... more
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06/10/21

H2SO4 + 2 NaOH = Na2SO4 + 2 H2O How many grams of Na2SO4 could be produced from 4.94 moles of sulfuric acid?
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06/10/21

C2H6 + 7O2 = 4 CO2 + 6 H2O If you wanted to produce 5.83 moles of carbon dioxide, how many moles of oxygen would you needed to have started with?
Grateful for any help given!
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06/10/21

2 C2H6 + 7O2 = 4 CO2 + 6 H2O If 0.31 moles of H 2 O were produced, how many moles of carbon dioxide would also have been produced?
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06/09/21

2 NABr + Ca(OH)2 = CaBr2 + 2 NaOH How many moles of CaB 2 are produced, if 14.72 moles of NaBr and excess Ca(OH) 2 react?
Grateful for any help given!
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06/09/21

2 NABr + Ca(OH)2 = CaBr2 + 2 NaOH What was the initial mass of calcium hydroxide for a reaction that produced 52.9 g of NaOH?
Grateful for any help given!
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05/07/21

stiochiometry: chemistry
1 C5H12 + 8 O2 --> 5 CO2 + 6 H2OStarting with 83.42 grams of Oxygen gas in excess C5H12, how much Carbon Dioxide can be created?
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Moles

05/06/21

Equation: C3H8 + 5O2 --- 3CO2 + 4H2O
Equation: C3H8 + 5O2 --- 3CO2 + 4H2Oa) How many moles of CO2 are produced from 14.8 g of C3H8?b) How many moles of CO2 are produced from 3.44 g of O2?c) If you mixed 14.8 g C3H8 with 3.44 g O2,... more
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04/29/21

Calculate the amount of aniline - in mL - needed for the reaction
A reaction uses 5.00 millimoles of aniline. the molecular weight of aniline is 93.13 g/mol and the density is 1.02 g/mL. Calculate the amount of aniline - in mL - needed for the reaction
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04/19/21

2 Na2S2O3 + AgBr NaBr + Na3[Ag(S2O3)2] What is the mass of NaBr that will be produced from 20.5 moles of Na2S2O3?
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04/11/21

If I have 20 grams of NH3, how many grams of N2 can I make?
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03/27/21

Stoichiometry work
10.0 grams of calcium is added to HCl. Ca   +  HCl →  CaCl2      +   H2How many grams of HCl would be needed to completely react with the Ca?
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03/11/21

Hey , can someone help me do this ? Moles , Chemistry

How many per gram 3.01 ● 10 22 molecules of nitric acid?What is the volume of 2,408 ● 10 24 molecules of oxygen?How Many Molecules are in 112 dm3 of Hydrochloride?How many grams is 134.4 dm3 of... more
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03/03/21

Chemistry Homework Help! Combustion!
How many moles of water is produced by the complete combustion of 5 g of propane Convert this answer into grams Show that the conservation of mass was a balanced during the complete combustion of... more
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02/12/21

I keep getting lost on this question: In a combination reaction, 1.54 g of lithium is mixed with 6.56 g of oxygen.....
a) Which reactant is present in excess? I got Lithium being the LR. b) How many moles of the product are formed?I got 3.32 g Li2Oc) After the reaction, how many grams of each reactant and product... more
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02/10/21

In a combination reaction, 1.62 g of lithium is mixed with 6.87 g of oxygen. Answer a, b, and c. I am lost.

a) Which reactant is present in excess?b) How many moles of the product are formed?c) After the reaction, How many grams of each reactant and product are present?Blank g LiBlank g O2Blank g LI2O
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02/03/21

How many atoms are in 0.188 mol of Na?
How many atoms are in 0.188 mol of Na? (Show your work with unit conversions)
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02/01/21

Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s) → 2K2O(s) + 2N2(g) + 5O2(g) to produce 71.8 kg of O2, how many...
a) Moles of KNO3 must be heated?b) Grams of KNO3 must be heated?
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01/11/21

Chemistry Please Help!
Liquid nitroglycerine (C3H5(NO3)3) is a powerful explosive. When it detonates, it produces a gaseous mixture of nitrogen, water, carbon dioxide, and oxygen. a) What is the theoretical yield of... more
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01/07/21

how many liters of H2 gas are needed to form 35.5 grams of NH3?
Given N2+3H3=2NH3 , how many liters of H2 gas are needed to form 35.5 grams of NH3?
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