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1. How many atoms are represented by: a. 0.96 moles Ca b. 0.39 moles Ga c....
number 6 74 MBits Le 6. If you have 2.5 moles of Na2SO4, how many moles of Nalt do you have? 2. Smotes Nads Oy x 7. For the reaction 4 K+2 → 2 K3S, how many atoms of sulfur will react with 52 ato K? 8. For the reaction 4 Na + 2S → 2 Na S, how many moles of sulfur will react with moles of Na?
c. 0.72 moles CHz d. 0.57 moles O2 6. How many grams are represented by: a 6.11 moles CH2O% b. 1.89 moles O2 c. 6.61 moles NaHCO d. 1.14 moles Na
29. How many moles of Ca atoms are in 540.3 g Ca? a. 13.48 mol b. 7.418 x 10-2 mol C. 2.166 x 104 mol d. 26.96 mol e. 540.3 mol
1. How many moles of sulfur are in 45.6g of Carbonyl Sulfide? 2. How many atoms are in 1.5 mol of Carbonyl Sulfide? 3. How many grams of sulfur are in 2.5 x 10^23 molecules of Carbonyl Sulfide?
a.) how many moles of iron is 66.8 g of Fe? __________________ mol Fe b.) How many grams of iron is 4.89 x 10-2 mol Fe? __________________ g Fe c.) How many atoms are present in 0.950 mol of uranium? _________________ x10 _________________ U atoms d.) 3.84 × 106 sulfur atoms is how many moles? __________________ x10 _______________ moles
CHM 1045 Reactions and Stoichiometry In Class Questions 2. How many sodium atoms are in 0.120 moi Na? 0.10 moi va y...olx.2-12 ima 2. Calculate the number of atoms in 2.95 mol Of copper. 2.45 voleux 3. A Sliver ring contains 1.1 X 10 silver atoms. How many moles of silver are in the ring? Itxite Imol- * 6.024x15 - 4. Zinc (Zn) is a siivery metal that is used in making brass (with copper) and in plating Iron to...
10. Use the equation below to calculate the following. Ca(NO)2 (aq) Moles of NasPOs needed to react with 1.45 L of 0.225 M Ca(NOs) Balance the reaction. NasPO (aq) a. Cas(PO)2 (s) NaNOs (aq) b. c. Volume of 0.250 M Na PO4 needed to react with 15.00 mL of 0.500 M Ca(NOs)2 d. Grams of Cas(PO4)2 that can be obtained from 125 mlL of 0.500 M Ca(NO1) e. Molarity of Ca(NOs)2 when 40.00 mL react with 50.00 mL of 2.00...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if you have 7 moles of the molecule? Consider the following generic balanced reaction equation: 5A + 3B 22C If 3.3 moles of A react completely, how many moles of C will be produced? How many grams are the in 40 moles of a compound with a molar mass of 58.2 grams per mole (g/mol)? How many moles are in 176.4 grams of a compound...
2) (4pts) Answer the following questions about sodium phosphate (NasPO.) How many oxygen atoms are in one molecule of sodium phosphate? many oxygen atoms do you have? If you have one dozen molecules of sodium phosphate, how many oxygen atoms do you h If you have one mole of sodium phosphate molecules, how many oxygen atoms do you have? (16 pts) Perform the following conversions: 3) a) 2.89 × 103 helium atoms into moles of helium atoms: b) 0.500 moles...
1. How many ATOMS of sulfur are present in 4.77 moles of disulfur decafluoride? atoms of sulfur. 2. How many MOLES of fluorine are present in 1.05x1021 molecules of disulfur decafluoride? moles of fluorine.