24 Answered Questions for the topic grams

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

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

How many grams are 1/10 an oz

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)

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

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

05/05/17

Limiting Reagents (Chemistry) Answer a-d + Show Work Please

Equation: C3H8 + 5O2 = 3CO2 + 4H2O (already balanced)   a) If you start with 14.8 g of C3H8 and 3.44 g of O2, determine the limiting reagant   b) Determine the number of moles of carbon dioxide... more

04/13/17

The density of a substance is 8.8 g/cm3. What volume does 45 grams of it take up?

The density of a substance is 8.8 g/cm3. What volume does 45 grams of it take up?

02/08/17

How many grams in 3.91 moles of sodium? – Show Work

How many grams in 3.91 moles of sodium? – Show Work

02/08/17

How many grams in 45.22 moles of strontium? – Show Work

How many grams in 45.22 moles of strontium? – Show Work

08/07/16

I need Chemisty help.

When propane (C3H8) is combusted it has an enthalphy of reaction of -2044 kJ/mol. A 1.00 L cylinder of propane starting at 12.50 atm and 30.0 0C is completely combusted to heat water. How many... more

04/24/16

I am having trouble with adding the cost of something based on gram or kilograms ?

For example if I need 30 g of garlic and it costs $10.00/1000g how much would it cost? Any help would be appreciated!

A student calculates the theoretical yield of their experiment is 4.89 grams

A student calculates the theoretical yield of their experiment is 4.89 grams. After carrying out the experiment, they only produced 4.21 grams of product in the lab. Calculate the percent yield... more

02/17/16

Specific Gravity/Mass PLEASE HELP URGENTTTT!!

The specific gravity of blood at 20 degrees Celsius is given as 1.028. Determine the mass of 1.50 litres of blood in grams and kilograms
Grams Kilograms

10/30/14

15 gram pieces of chees 50 gram of chicken an three 20 gram of slices of breat what is the total weitght of the sandwitch in kilograms

it is a word problem that I need help on IMMEDIATELY. Please and thank you I really need the help

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