Chemistry

Chemistry, 12.10.2019 12:10, theoriginalstal9245

Find the number of moles in 3.62 x 1024 atoms of helium.

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Chemistry, 03.07.2019 14:50, taylorruiz16

Mole-atom conversions 1. how many moles are 1.55 x 1027 atoms of zinc (zn)? 2. how many atoms are in 25.0 moles of calcium (ca)? 3. how many atoms are in 0.35 moles of carbon (c)? 4. how many moles are 7.6 x 1024 atoms of helium? mole-mass conversions how many moles in 28.o grams of oxygen? what is the mass of 5.0 moles of iron? find the number of moles of argon in 452 g of argon. find the grams in 16.5 mol of hydrogen.

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Chemistry, 18.08.2019 16:30, cheesedoodle

4. how many moles are in 54.0 grams of silver? 54.0 g ag x (108mol ag /1 g ag ) = 5,832 ag moles ag (use the gray boxes to insert the values for the conversion factors.) 5. what is the mass of 6.3 moles of sulfur? 6.3 mol s x ( / ) = g s 6. how many atoms are in 6.0 moles of argon? 6.0 mol ar x ( / ) = atoms of ar 7. how many moles of kr are in 112 g of krypton? 112 g kr x ( / ) = moles of kr 8. how many moles are in 1.93 x1024 formula units of kf, potassium fluoride? 1.93 x1024 formula units x ( / ) = mol kf (the next two problems need 2 step conversions - so there are two conversion factors (fractions) for the problem - remember the mole map - covert to moles first, then to the desired unit.) 9. how many atoms are in 86.2 g of si (silicon)? 86.2 g si x ( / ) x ( / ) = atoms of silicon 10. what is the mass in grams of 4.8 x 1024 atoms of magnesium? 4.8 x 1024 atoms of mg x ( / ) x ( / ) = g mg

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Chemistry, 09.10.2019 22:00, ryrytkg5107

1. analyze the problem you are given the number of atoms of zinc and must find the equiva- lent number of moles. if you compare 4.50 x 1024 atoms zn with 6.02 x 1023, the number of atoms in one mole, you can predict that the answer should be less than 10 moles. known unknown number of atoms = 4.50 x 1024 atoms zn mol zn = ? mol 1 mol zn = 6.02 x 1023 atoms zn

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Chemistry, 20.11.2019 07:31, kat9940

Mole-atom conversions1. how many moles are 1.55 x 1027 atoms of zinc (zn)? 2. how many atoms are in 25.0 moles of calcium (ca)? 3. how many atoms are in 0.35 moles of carbon (c)? 4. how many moles are 7.6 x 1024 atoms of helium? mole-mass conversionshow many moles in 28.o grams of oxygen? what is the mass of 5.0 moles of iron? find the number of moles of argon in 452 g of argon.find the grams in 16.5 mol of hydrogen..

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