# moles = mass / molar mass
= 1.23g / 83.80g/mol
=1.47x10^-2 moles
There are 1.47x10^-2 moles in 1.23g of krypton
4.56 moles Kr x 83.798 g/mole = 382.119 grams = 382 grams (to 3 significant figures)NOTE: You should not use more than 3 significant figures since 4.56 moles limits the precision. Thus the answers of 381.66g and 382.1188 g are incorrect.
It seems like there might be a mistake in your question. Krypton is a gas and its atomic mass is around 83.80 g/mol, not 30.00 g/mol. So, if you have 30.00 g of krypton, you would have approximately 0.358 moles of krypton.
0,27 moles of calcium contain 10,82 g calcium.
The answer is 15,2 moles.
16 grams of oxygen how many moles is 0,5 moles.
4.56 moles Kr x 83.798 g/mole = 382.119 grams = 382 grams (to 3 significant figures)NOTE: You should not use more than 3 significant figures since 4.56 moles limits the precision. Thus the answers of 381.66g and 382.1188 g are incorrect.
It seems like there might be a mistake in your question. Krypton is a gas and its atomic mass is around 83.80 g/mol, not 30.00 g/mol. So, if you have 30.00 g of krypton, you would have approximately 0.358 moles of krypton.
0,27 moles of calcium contain 10,82 g calcium.
The answer is 15,2 moles.
16 grams of oxygen how many moles is 0,5 moles.
To convert moles to grams, you need to use the molar mass of the substance. The molar mass of aluminum phosphate is 122.94 g/mol. Therefore, for 5.5 moles of aluminum phosphate, you would have 5.5 moles x 122.94 g/mol = 676.17 grams of aluminum phosphate.
To find the number of moles in 15.01 grams of argon, you need to divide the given mass by the molar mass of argon. The molar mass of argon is approximately 39.95 g/mol. So, the number of moles of argon in 15.01 grams would be 15.01 g / 39.95 g/mol = 0.376 moles.
To find the number of moles in 15.8 grams of C6H12O6, first calculate the molar mass of C6H12O6 which is 180 g/mol (126 + 112 + 16*6). Then divide the given mass by the molar mass to get the number of moles. In this case, 15.8g / 180 g/mol = 0.088 moles.
how many grams are contained in 11.89 pounds?
0.1868 moles
53 grams ÷ 18.01 grams/mole = 2.94 moles
1,8 grams of fluorine is equivalent to 0,0947 moles.