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Mole Calculation Practice Worksheet Answer the following questions: 1) How many moles are in 25.0 grams of water? 2) How many grams are in 4.500 moles of Li 2O? 3) How many molecules are in 23.0 moles of oxygen? 4) How many moles are in 3.4 x 10 23 molecules of H 2SO 4? 5) How many molecules are in 25.0 grams of NH 3?
0.0643 grams of H 2 O is equal to 0.00357 moles, which is 2.15 x 10 21 molecules. How many moles of Au is equal to 4.77 x 10 27 Au atoms? Answer. 7920 moles
Mole Calculation Practice Worksheet. Answer the following questions: 1) How many moles are in 25 grams of water? 2) How many grams are in 4.5 moles of Li2O? 3) How many molecules are in 23 moles of oxygen? 4) How many moles are in 3.4 x 1023 molecules of H2SO4? 5) How many molecules are in 25 grams of NH3?
LESSON 1: Moles and Molar Mass. Objective: Calculate Molar Mass (gram formula mass) Fill in the table below. Calculate the GRAM formula mass (molar mass) and don’t forget the UNITS!!! CO2.
1. a. What is the molecular weight of methanol (CH3OH)? b. How many moles are there in 5.0 g of methanol? 2. How much would 0.50 moles of CO2 weigh? 3. a. Calculate the Mr of a compound if 3.0 moles of it weighed 54 g. b. What do you think this compound might be? 4. How many moles of CuCO3 would weigh 9.0 g? 5. a.
If 0.86 moles of MnO 2 and 48.2 grams of HCl react, which reagent will be used up first? How many grams of Cl 2 will be produced? How many moles of the excess reagent will be left over? If 19.8 grams of Cl 2 were obtained in lab, what is the percent yield? b. ___ CaF 2 + ___ H 2 SO 4 ___ CaSO 4 + ___ HF In the reaction above, you begin with 6. ...
Using moles to balance equations. Q9: Using this equation and the following information, balance the following equation. 1248g of barium chloride reacts with 684g of aluminium sulphate, forming 1398g of barium sulphate and 534g of aluminium chloride. Balance the equation below.
