87.2 grams of IrCl3 contains ____ moles of the compound.
7.65 |
||
3.41 |
||
0.0819 |
||
0.292 |
87.2 grams of IrCl3 contains ____ moles of the compound. 7.65 3.41 0.0819 0.292
1. How many GRAMS of sulfur are present in 3.41 moles of sulfur tetrafluoride? grams 2. How many MOLES of fluorine are present in 2.86 grams of sulfur tetrafluoride ? moles Submit Answer Retry Entire Group 9 more group attempts remaining
1. How many GRAMS of sodium sulfide are present in 4.93 moles of this compound? grams How many MOLES of sodium sulfide are present in 1.80 grams of this compound? 2. moles.
a. How many grams of sodium phosphate, Na3PO4, are present in 2.23 moles of this compound? grams b. How many moles of sodium phosphate are present in 3.73 grams of this compound? moles a. How many moles of sulfur hexafluoride, SF6, are present in 2.93 grams of this compound? moles b. How many grams of sulfur hexafluoride are present in 3.30 moles of this compound? grams
1. How many moles of Cs are there in a sample that contains 3.17×1022cesium atoms? 2. How many cesium atoms are there in a sample that contains 3.69 mol of Cs? 3. How many moles of Kr are there in a sample that contains 3.23×1022krypton atoms? 4. How many krypton atoms are there in a sample that contains 1.14 mol of Kr? 5. What is the mass of 1.38×1024atoms of magnesium ? 6. How many magnesium atoms are there in...
. How many GRAMS of calcium hydroxide are present in 4.14 moles of this compound? 2. How many MOLES of calcium hydroxide are present in 2.90 grams of this compound?
1. How many GRAMS of nickel(II) chromate are present in 2.09 moles of this compound ? grams. 2. How many MOLES of nickel(II) chromate are present in 3.84 grams of this compound ? moles. Submit Answer Retry Entire Group 8 more group attempts remaining
1) How many grams of Na are there in a sample of Na that contains 9.68×1023atoms? 2) How many GRAMS of potassium bromide are present in 1.85 moles of this compound ? 3) . How many MOLES of potassium bromide are present in 3.00 grams of this compound ? 4) How many GRAMS of silicon are present in 3.73 moles of silicon dioxide ? 5) How many MOLES of oxygen are present in 4.59 grams of silicon dioxide ?
A. How many molecules are present in a sample of this compound that contains 2.98 moles of 2-methyl-1-butanol? B. How many moles of 2-methyl-1-butanol are present in a sample of this compound that contains 7.15x10^22 carbon atoms? C. How many carbon atoms are present in 1.48 moles of this compound (pentanal)? D. How many moles of pentanal are present in 1.82x10^22 molecules of this compound?
A tank contains 22.0 grams of oxygen, 80.00 grams of helium, and 3.21 moles of hydrogen gases.The mixture has a total pressure of 7.00 atmospheres. Calculate the following. a) How many moles of O2 are in the tank? b) How many moles of He are in the tank? c) Total moles of gas in tank d) Mole fraction of each gas e) The partial pressures of each gas
A 1.802 gram sample of unknown compound contains 0.721 grams of carbon, 0.121 grams of hydrogen and 0.960 grams of oxygen. The compound has a molar mass of 180.2 g/mol. Determine the empirical formula of the compound and the molecular formula. Show all work.