Calculate the number of grams per mole in chalk using a periodic table.
Grams in 1 mole Ca
Grams in 1 mole C
Grams in 1 mole O
Xz 3 =
Add those numbers to get total grams per 1 mole of chalk.
2. The mass of the chalk before they drew the picture:
40,000 g
(mass initial)
3. The mass of the chalk after they drew the picture:
17,000 g
(mass initial)
4. Subtract the weight after (mass final) from the weight before (mass initial) to obtain the grams used in the drawing.
5. Convert that to the number of moles by setting up a conversion (credit FlatWorldKnowledge. com for image), similar to how you worked through the Rice ‘O Rama activity.
If
grams is 1 mole, then
grams is
moles.
6. Calculate the number of molecules in your drawing using the number of moles and setting up another conversion.
* Remember there are 6.02 x 1023 molecules in 1 mole.
# molecules of chalk in the drawing:
Answers: 3
Chemistry, 21.06.2019 19:10
Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?
Answers: 1
Chemistry, 22.06.2019 09:30
Which formula can be used to calculate the molar mass of hydrogen peroxide
Answers: 1
Chemistry, 23.06.2019 03:30
In general metals get as you move from left to right across the periodic table.
Answers: 1
Calculate the number of grams per mole in chalk using a periodic table.
Grams in 1 mole Ca
Mathematics, 01.01.2021 01:00
History, 01.01.2021 01:00
Health, 01.01.2021 01:00
Geography, 01.01.2021 01:00
Mathematics, 01.01.2021 01:00
Computers and Technology, 01.01.2021 01:00
Mathematics, 01.01.2021 01:00
Mathematics, 01.01.2021 01:00
Medicine, 01.01.2021 01:00
Mathematics, 01.01.2021 01:00