34 Answered Questions for the topic grams

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.

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?

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

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

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.
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

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
Grams Prealgebra

05/26/19

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)

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

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

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)
Grams Moles Convert

05/29/17

#### Convert the following units (Show Work Please)

How many grams are in 5.12 moles of HCN?

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

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

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)

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)

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

05/07/17