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Knihovna

Copy of Mole Conversion Review and Volume of Gas at STP (Jan 2023) (5/28/2026)

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Poslední aktualizace about 1 month ago
11 Dotazy

Example A - moles to mass

Example B - mass to moles

Example C - moles to molecules (particle)

Example D - atoms (particle) to moles

Example E (2 step) - mass to atoms

  • mass to moles to atoms

Example F (2 Step) - molecules to mass

  • molecules to moles to mass

Example G - new material (Volume of a gas at STP)

  • moles to volume

Example H - volume to moles

Example I - (2 step) - mass to volume

  • mass to moles to volume

Example J - (2 step) - volume to atoms

  • volume to moles to atoms

How to report an answer in scientific notation on this assignment.

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C.4.4 Apply the mole concept to determine the mass, moles, number of particles, or volume of a gas at STP, in any given sample, for an element or compound.

Learning Goals:

  • I can use the mole concept to determine the mass in any sample at STP.

  • I can use the mole concept to determine the moles in any sample at STP.

  • I can use the mole concept to determine the number of particles in any sample at STP.

  • I can use the mole concept to determine the volume of a gas in any sample at STP.

Examples:

  • I have provided a set of 10 examples of me working out problems similar to those that you are doing on this activity.

  • They are located below.

  • I encourage you to watch them whenever you need assistance.

Otázka 1
1.

Calculate the mass of 8.4 moles iron (Fe).

Remember to round according to the rules of SigFigs.

Otázka 2
2.

Convert 0.45 g NaOH into moles.

Remember to round according to the rules of SigFigs.

Otázka 3
3.

Calculate the number of molecules in 3.4 moles of CO2.

Remember to round according to the rules of SigFigs.

Otázka 4
4.

Calculate the number of molecules in 168.2 g of CO2.

Remember to round according to the rules of SigFigs.

Otázka 5
5.

New material - volume of a gas at STP

Calculate the number of moles in a 75.8 L sample of neon (Ne) gas.

Remember to round according to the rules of SigFigs.

Otázka 6
6.

How many liters (L) are in 2.012 x 1023 moles of CH4?

Remember to round according to the rules of SigFigs.

Otázka 7
7.

How many grams are in 7.8 liters (L) of CF4?

Remember to round according to the rules of SigFigs.

Otázka 8
8.

How many molecules are in 12.0 liters (L) of O2?

Remember to round according to the rules of SigFigs.

Otázka 9
9.

How many liters (L) of H2 are in 541.9 g of H2 gas?

Remember to round according to the rules of SigFigs.

Otázka 10
10.

How many grams are there in 20.1 L of CO2 gas?

Remember to round according to the rules of SigFigs.

Otázka 11
11.