1) How many grams of Na are there in a sample of Na that contains 9.68×1023atoms?...
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 ?
Homework Answers
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1) How many grams of Na are there in a sample
of Na that contains
9.68×1023atoms?...
A. How many moles of silicon dioxide, SiO2 , are present in a sample that contains...
A. How many moles of silicon dioxide, SiO2 , are present in a sample that contains 3.61 moles of oxygen atoms? B. How many moles of oxygen atoms are present in a sample that contains 2.95 moles of SiO2 ? C. How many moles of sulfur atoms are present in a sample that contains 1.92 moles of disulfur decafluoride, S2F10 ? D.How many moles of S2F10 molecules are present in a sample that contains 6.13 moles of sulfur atoms? E....
1. How many grams of O are there in a sample of O that contains the...
1. How many grams of O are there in a sample of O that contains the same number of moles as a 55.4 gram sample of Kr? 2. How many MOLECULES of nitrogen dioxide are present in 3.28 grams of this compound 3. . How many GRAMS of nitrogen dioxide are present in 7.63×1022 molecules of this compound
1. How many moles of Cs are there in a sample that contains 3.17×1022cesium atoms? 2....
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...
1. What is the mass of 1.55x1024 atoms of calcium? grams 2. How many calcium atoms...
1. What is the mass of 1.55x1024 atoms of calcium? grams 2. How many calcium atoms are there in 33.4 grams of calcium? atoms 1. How many MOLECULES of nitrogen dioxide are present in 1.57 grams of this compound? molecules. 2. How many GRAMS of nitrogen dioxide are present in 2.77x1022 molecules of this compound? grams. 1. How many GRAMS of chromium(III) bromide are present in 2.83x1022 formula units of this compound? grams 2. How many formula units of chromium(III)...
a. How many grams of sodium phosphate, Na3PO4, are present in 2.23 moles of this compound?...
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
Use the References to access important values if needed for this question. How many ATOMS of...
Use the References to access important values if needed for this question. How many ATOMS of phosphorus are present in 1.38 grams of tetraphosphorus decaoxide? atoms of phosphorus. 2. How many GRAMS of oxygen are present in 1.01 1023 molecules of tetraphosphorus decaoxide? grams of oxygen days grams 1. How many GRAMS of potassium sulfate are present in 4.96 moles of this compound? moles 2. How many MOLES of potassium sulfate are present in 1.67 grams of this compound?
1. What is the mass of 1.38×1024atoms of magnesium ? 2. How many magnesium atoms are...
1. What is the mass of 1.38×1024atoms of magnesium ? 2. How many magnesium atoms are there in 28.6 grams of magnesium ? 3. What is the mass of 1.69×1023atoms of lead ? 4. How many lead atoms are there in 28.8 grams of lead ? 5. How many moles of Ga are there in a sample that contains 10.9 grams of gallium? 6. How many grams of gallium are there in a sample that contains 2.19 mol of Ga?...
A. How many molecules are present in a sample of this compound that contains 2.98 moles...
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?
How many moles of nickel(II) bromide, NiBr2, are present in a sample that contains 2.63 moles...
How many moles of nickel(II) bromide, NiBr2, are present in a sample that contains 2.63 moles of bromide ions? How many moles of bromide ions are present in a sample that contains 4.56 moles of NiBr2?
1. How many ATOMS of carbon are present in 4.23 moles of carbon dioxide ? ____atoms...
1. How many ATOMS of carbon are present in 4.23 moles of carbon dioxide ? ____atoms of carbon. 2. How many MOLES of oxygen are present in 3.29×1022 molecules of carbon dioxide ? _____moles of oxygen. 3. How many MOLECULES of carbon tetrabromide are present in 2.73 moles of this compound ? ____molecules. 4. 2. How many MOLES of carbon tetrabromide are present in 9.20×1022 molecules of this compound ? _____moles.
1. What is the mass of 1.55x1024 atoms of calcium? grams 2. How many calcium atoms are there in 33.4 grams of calcium? atoms 1. How many MOLECULES of nitrogen dioxide are present in 1.57 grams of this compound? molecules. 2. How many GRAMS of nitrogen dioxide are present in 2.77x1022 molecules of this compound? grams. 1. How many GRAMS of chromium(III) bromide are present in 2.83x1022 formula units of this compound? grams 2. How many formula units of chromium(III)...
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
Use the References to access important values if needed for this question. How many ATOMS of phosphorus are present in 1.38 grams of tetraphosphorus decaoxide? atoms of phosphorus. 2. How many GRAMS of oxygen are present in 1.01 1023 molecules of tetraphosphorus decaoxide? grams of oxygen days grams 1. How many GRAMS of potassium sulfate are present in 4.96 moles of this compound? moles 2. How many MOLES of potassium sulfate are present in 1.67 grams of this compound?
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