6) mass = (molar mass) x (moles)
a) molar mass of C6H12O6 = (6 x12) + (12 x 1) + ( 6 x 16) = 180 gm/mole
mass = 180 gm/mole x 6.11 mole = 1099.8 gm
b) molar mass of O2 = 2 x 16 = 32 gm/mole
mass = 32 gm/mole x 1.89 mole = 60.48 gm
c) molar mass of NaHCO3 = 23 + 1 + 12 + (3x 16) = 84gm/mole
mass = 84gm/mole x 6.61 mole = 555.24 gm
d) atomic mass of Na = 23 gm/mole
mass = 23 gm/mole x 1.14 mole = 26.22 gm
c. 0.72 moles CHz d. 0.57 moles O2 6. How many grams are represented by: a...
1. How many atoms are represented by: a. 0.96 moles Ca b. 0.39 moles Ga c. 0.94 moles Ag d. 0.39 moles Mg 2. How may molecules are represented by a. 0.39 moles CH3COOH b. 0.71 moles N2 C. 0.72 moles C&H 206 d. 0.57 moles 02 3. How may grams are represented by: a. 6.11 moles C6H1206 b. 1.89 moles 02 c. 6,61 moles NaHCO3 d. 1.14 moles Na 4. How may moles are represented by: a. 26.32 grams...
How many grams of water will be produced from 4 moles of O2? 2H2 + O2 à 2H2O
a)How many grams are in 2.250 moles of N2? b)How many grams are in 2.250 moles of NaBr? c)How many grams are in 2.250 moles of C6H14?
6. How many moles of sulfur are required in the preparation of 800 grams of sulfur dioxide? S+ O2 → SO2
2C2H2+5O2=4CO2+2H2O If one starts with 4 moles of O2, how many moles of C2H2 will react with it? How many moles of CO2 will be produced? How many moles of H2O will be produced? Starting with 15 moles of C2H2, how many moles of O2 are required to react with it? How many moles of CO2 will be produced? How many moles of H2O will be produced? Starting with 130g of C2H2, how many grams of O2 are required? How...
A) How many moles of O2- ions are there in 0.950 moles of aluminum oxide, Al2O3? B) What is the mass in grams of these O2- ions?
QUESTION 1 How many grams of NaCl are needed if we want to make 9.025 moles of AgCl by the reaction NaCl + AgNO3 ———> AgCl + NaNO3 QUESTION 2 How many grams of O 2 would be needed to react with 3.933 moles of CS 2 in the reaction CS2 + 3 O2 ———> CO2 + 2 SO2 QUESTION 3 How many grams of PbSO 4 will be produced if we produce 25.59 grams of NaNO 3 in the reaction Pb(NO 3) 2 + Na 2SO 4 ———> PbSO 4 + 2 NaNO 3 QUESTION 4 How...
The oxygen gas (O2) in a cylinder has a mass of 360 grams. How many moles of oxygen are present in the cylinder?
d. How many moles of O2 must react to produce 0.250 mol of NO? e. How many grams of oxygen are needed to react with 105 g of nitrogen? 8. Hydrazine reacts with oxygen according to the unbalanced equation below: N2H4 (1) + O2(g) → NO2 (g)+ H2O(g) a. If 75.0 kg of hydrazine reacted with 75.0 kg of oxygen, which is the limiting reagent? b. How many kg of NO2 are produced from the reaction of 75.0 kg of...
мимитисмо 1) How many moles are in 15 grams of lithium? 2) How many grams are in 2.4 moles of sulfur? 3) How many moles are in 22 grams of argon? 4) How many grams are in 88.1 moles of magnesium? 5) How many moles are in 2.3 grams of phosphorus? 6) How many grams are in 11.9 moles of chromium 7) How many moles are in 9.8 grams of calcium? 8) How many grams are in 238 moles of...