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A mole equals 6.02 x 10^23 . Answer these questions below.

1. How many ants are in 1.25 moles of ants?

2. How many moles of pencils are in 4.92 * 10^26 pencils?

3. How many molecules are in 0.26 moles of molecules?

4. How many moles of molecules are in 3.46 * 10^19 molecules?

5. 5.3 * 10^20 atoms are equal to how many moles of atoms?

6. 0.11 moles of atoms are equal to how many atoms?

A mole equals 602 x 1023 Answer these questions below 1 How many ants are in 125 moles of ants 2 How many moles of pencils are in 492 1026 pencils 3 How many mo class=

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jzheng1229

Answer:

1. 1.25 mol ants x 6.02*10^23 ants/1 mol ants = 7.53*10^23 ants

2. 4.92*10^26 pencils x 1 mol pencils/6.02*10^23 pencils = 817 mol pencils

3. 0.26 mol molecules x 6.02*10^23 molecules/1 mol molecules = 1.6*10^23 molecules

4. 3.46*10^19 molecules x 1 mol molecules/6.02*10^23 molecules = 5.75*10^-5 mol molecules

5. 5.3*10^20 atoms x 1 mol atoms/6.02*10^23 atoms = 8.8 mol atoms

6. 0.11 mol atoms x 6.02*10^23 atoms/1 mol atoms = 6.6*10^22 atoms

I would suggest looking into "dimensional analysis" for help with this type of material. Dimensional analysis will stick with you all throughout chemistry, so picking it up will be extremely beneficial.

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