34 Answered Questions for the topic grams

04/18/22

How many individual oxygen atoms are contained in a sample of P2O5 that also contains 0.620 moles of P?
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04/17/22

How many moles of C are in a sample of C5H12 that also contains 22.5 g of H.
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04/17/22

How many individual Ni atoms are contained in 1.25 grams of Ni? (
I don't know if I'm missing something or not, but I've tried this question so many times. My answer is always wrong. I'm using the correct conversion formula, but my answer is always wrong.
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04/17/22

How many grams of nitrogen are contained in a sample of C4H9N3O2 that also contains 9.42 x 1024 hydrogen atoms?

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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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04/11/21

If I have 20 grams of NH3, how many grams of N2 can I make?
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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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02/01/21

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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02/01/21

Allyl sulfide gives garlic its characteristic odor. Give the mass and number of carbon atoms.
a) The mass in grams of 2.62 mol of allyl sulfide. Answer in scientific notation.b) The number of carbon atoms in 72.8 g of allyl sulfide. Answer in scientific notation.
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Grams Chemistry

11/12/20

How many grams are in a neon sign

A neon sign has a diameter of 2.5cm and length at 5.5m. If the sign contains neon at 1.78torr at 35 degrees, how many grams of neon are in the sign
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04/27/20

General Chemistry Calculating grams
The combustion of propane C3H8 is shown belowC3H8(g)  +  5O2(g) →  3CO2(g)  +  4H2O(g) If this reaction was performed with 3 moles of propane and 10 moles of oxygen, calculate the grams of... more
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Grams Prealgebra

05/26/19

How many grams are 1/10 an oz
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Grams Chemistry Mols

04/25/19

How many grams of lithium nitrate will be needed to make 250 grams of lithium sulfate assuming

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06/01/17

If 107.00 g of Na3P react how many grams of NaF would be produced? (Show Work Please)
If 107.00 g of Na3P react how many grams of NaF would be produced? Formula 2Na3P + 3CaF2 = 6NaF + Ca3P2 (already balanced)
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05/31/17

Use the following equation to answer the following questions. (Show Work Please)
Equation: 2 Mg + CO2 = 2 MgO + C (already balanced)   71.66 g of Mg react with 91.25g of CO2. What is the limiting reagent in the reaction? What is the theoretical yield of MgO? Express your... more
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05/31/17

A 15.00 g sample of calcium carbonate was placed in excess hydrochloric acid (HCl). A reaction occurred producing calcium chloride, water, and carbon dioxide.
Formula: CaCO3 + 2HCl = CaCl2 + H2O + CO2 (already balanced)   How many moles of CaCO3 reacted? Theoretically, how many grams water should be produced?   Answer both questions, show work... more
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05/31/17

If 107.00 g of Na3P react how many grams of NaF would be produced? (Show Work Please)
If 107.00 g of Na3P react how many grams of NaF would be produced?    Formula 2Na3P + 3CaF2 = 6NaF + Ca3P2 (already balanced)
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Grams Moles Convert

05/29/17

Convert the following units (Show Work Please)
How many grams are in 5.12 moles of HCN?
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05/10/17

How many grams of CO2 would be produced? - Show Work Please
Question: For the balanced equation shown below, if the reaction of 91.3 grams of C3H6 produces a 81.3% yield, how many grams of CO2 would be produced?   Equation: 2C3H6 + 9O2 = 6CO2 + 6H2O
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05/10/17

What is the percent yield? - Show Work Please
Question: If the reaction of 20.7 grams of CaCO3 produces 6.81 grams of CaO, what is the percent yield?   Equation: CaCO3 = CaO + CO2
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05/10/17

What is the theoretical yield of P4O10? - Show Work Please
Question: 23.9 grams of P4 react with 20.8 grams of O2, how many grams of P4O10 would be produced?   Equation: P4 + 5O2 = P4O10 (already balanced)
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05/10/17

What is the theoretical yield of Cl2? - Show Work Please
Question: If 18.3 grams of C2H5 were reacted with 37.3 grams of O2, how many grams of Cl2 would be produced?   Equation: 4C2H5Cl + 13O2 = 8CO2 + 10H2O + 2Cl2 (already balanced)
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05/10/17

Theoretical Yield of H3PO4? - Show Work Please
Question: 93.8 grams of PCl5 react with 20.3 grams of H2O. How many grams of H3PO4 would be produced (theoretical yield)?   Equation: PCl5 + 4H2O = H3PO4 + 5HCl
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05/07/17

Limiting Reagents (Chemistry) Answer a-d + Show Work Please
Equation: Al2(SO3)3 + 6NaOH = 3Na2SO3 + 2Al(OH)3 (already balanced)   a) If 10.0 g of Al2(SO3)3 is reacted with 10.0 g of NaOH, determine the limiting reagent.   b) Determine the number of... more
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