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The Mole Review 1) Define “mole”. 2) How many moles are present in 34 grams of Cu(OH) 2? 3) How many moles are present in 2.45 x 1023 molecules of CH 4? 4) How many grams are there in 3.4 x 1024 molecules of NH 3? 5) How much does 4.2 moles of Ca(NO 3) 2 weigh? 6) What is the molar mass of MgO?
Molar Mass Problems 1. Calculate the mass of 1.000 mole of CaCl2 2. Calculate grams in 3.0000 moles of CO2 3. Calculate number of moles in 32.0 g of CH4 4. Determine mass in grams of 40.0 moles of Na2CO3 5. Calculate moles in 168.0 g of HgS 6. Calculate moles in 510.0 g of Al2S3 7. How many moles are in 27.00 g of H2O 8.
Molar Mass Practice Worksheet Find the molar masses of the following compounds: 1) NaBr 2) PbSO 4 3) Ca(OH) 2 4) Na 3 PO 4 5) (NH 4) 2 CO 3 6) C 6 H 12 O 6 7) Fe 3 (PO 4) 2 8) (NH 4) 2 S 9) Zn(C 2 H 3 O 2) 2 10) AgF
Directions: Solve each of the following problems. Show your work, including proper units, to earn full credit. 1. Silver and nitric acid react according to the following balanced equation: 3 Ag(s) + 4 HNO 3 (aq) 3 AgNO 3 (aq) + 2 H 2 O(l) + NO(g) A.
Molar Mass Worksheet W 339 Everett Community College Tutoring Center Student Support Services Program Find the molar masses of the following compounds: 1) LiI 2) PbCO 4 3) Mg(OH) 2 4) K 3 PO 4 5) (NH 4) 3 PO 4 6) C 6 H 12 O 6 7) Fe 2 (SO 4) 3 8) Na 3 P 9) AgF 10) NH 4 C 2 H 3 O 2
Molar mass tells us the mass of 1 mol of an atom or compound. In each case we simply calculate the sum of the masses of the atoms in the formula to determine the mass of a mole. These masses can be found on the periodic table. EXAMPLE: Calculate the molar mass of a mole of iodine, I 2. Use all numbers from the periodic table.
Worksheet #13 Using Avogadro’s number and Molar Masses (2p.) 1. Calculate the molar mass of each of the following compounds: AgCl CaBr2 Li2O C6H12O6. 2. Using the conversion factor [ Molar Mass = 1 Mole] solve the following problems using dimensional analysis. Keep track of your units! a) Calculate the mass of 5.634 moles of HCN.
