Mass to Moles and Moles to Mass Using Mole Ratio

To transform from grams of one substance to grams of another, what are the steps you take?

• Grams A --> Moles A--> Grams B --> Moles B

• Grams A --> Moles B --> Grams B

• Grams A --> Grams B

• Grams A --> Moles A --> Moles B --> Grams B

Tags

NGSS.HS-PS1-7

When you start with grams of a substance, the next conversion factor will be....

• Molar Mass A

  1 mole A

• Molar Mass A

  Given Mass A

• 1 Mole A

  Molar Mass A

• 1 mole A

  1 mole B

Mole ratios are obtained from the

• balanced chemical equation

• periodic table

• molar mass

How many grams are in 7.8 moles of NaCl?

• 476 grams

• 460 grams

• 452 grams

• 462 grams

• 1 mole

• 2 moles

• 3 moles

• 4 moles

• 2.5 moles

• 1.5 moles

• 3.0 moles

• 2.0 moles

What is the first thing you must do to solve a stoichiometry problem?

• Write a Balanced Equation

• Panic

• Write an Unbalanced Equation

• Avogadro's Number

2H₂   +   O₂  →  2H₂O
How many moles of water can be produced if 8 moles H₂ are used?

• 4 moles

• 8 moles

• 16 moles

• 2 moles

Tags

NGSS.HS-PS1-7

Mole Ratios used for conversions are derived from:

• the molar mass of the reactants in the balanced chemical equation

• the coefficients of the balanced chemical equation

• the subscripts of the products in the balanced chemical equation

• the group number of each element in the balanced chemical equation

Tags

NGSS.HS-PS1-7

What can be determined from a balanced chemical equation?

• Mole ratio of any two substances in the reaction

• Energy released in the reaction.

• Electron configuration of all elements in the reaction. 

• Mechanism involved in the reaction. 

Tags

NGSS.HS-PS1-7