QUESTION 22 Calculate the mass (grams) contained in 0.928 moles of elemental nitrogen. 13.0 g 26.0...
How many moles are contained in each number of grams of table sugar (C12H22O11, molar mass 342.3 g/mol)? Enter your answer in scientific notation. a. 13.0 g b. 0.0470 g
A sample of carbon tetrachloride has a mass of 51.6 grams. How many moles are contained in the sample container? If a solution contains 3.7 moles of carbon tetrachloride, how many grams of carbon tetrachloride are in the sample? If a solution contains 3.7 moles carbon tetrachloride, how many grams of carbon tetrachloride are in the sample?
QUESTION 9 Calculate the number of moles of gas contained in a 10.0L tank at 22°C and 105 atm. (R = 0.08206 L.atm/K mol) 43.4 mol 22.4 mol 98.1 mol 0.546 mol
1. How many moles are contained in 2.50 grams of benzoic acid? Molar mass of benzoic acid: 122.12 g/mol 2. How many mL are in 0.5 grams of cyclohexene? Density of cyclohexene is 0.809 g/ml 3. How many moles are in 250 mL of 2 M sodium hydroxide? 4. If 5.0 mL of 2-methyl-2-butanol are allowed to react with an excess of concentrated hydrochloric acid, what is the maximum mass of 2-chloro-2-methylbutane that can be obtained? 5. An acid-catalyzed dehydration...
1. determine the molar mass of aluminum perchlorate in units of grams per mole. 2. what is the mass (in grams) of 3.25 moles of elemental nitrogen? 3. how many molecules are found in 18.0 g of carbon dioxide? 4. A 170.00 g sample of an unknown compound want to UC Davis for elemental analysis. The results stated the unknown common consist of 29.84% sodium, 67.49% chromium, and 72.67% oxygen. Find the Paracle formula of this identified compound.
How many moles are contained in each number of grams of fructose (C_6H_12O_6, molar mass 180.2 g/mol), a carbohydrate that is about twice as sweet as table sugar? "Lite" food products use half as much fructose as table sugar to achieve the same sweet taste but with fewer calories. a. 0.500 g b. 5.00 g c. 25.0 g d. 0.0250 g
How many grams of CuO would be required to produce 10.0 moles of nitrogen gas in the following chemical reaction? 2 NH3(g) + 3 CuO(s) → 3 Cu(s) + N2(g) + 3 H2O(g) How many moles of NH3 can be produced from 3.76 moles of nitrogen in the following reaction: N2 (g) + 3 H2 (g) → 2 NH3 (g) Question 12 of 20 Submit How many grams of CuO would be required to produce 10.0 moles of nitrogen gas...
Calculate the following amounts contained in 2.0 gram benzoic acid (FW=122.1 g) Number of moles 2. Number of milli-moles What weight of Na^+ ions (FW-23.00 g) is contained in 25 grams of Na_2SO_4 (FW-142 g) What weight of AgNO_3 (FW=169.9 g is needed to convert 2.33 g of Na_2CO_3 (FW=106.0g) to Ag_2CO_3?
1. How many GRAMS of nitrogen are present in 1.55 moles of dinitrogen tetrafluoride, N2F4? _______grams 2. How many MOLES of fluorine are present in 1.08 grams of dinitrogen tetrafluoride? _________moles 3.The percent by mass of copper(I) in Cu2SO3 is __________%. 4. Calculate the percentage composition for SF4. Mass percentage of sulfur = _________% Mass percentage of fluorine = _________%
A sample of pure copper has a mass of 14.0 g. Calculate the number of moles in the sample and copper atoms in the sample. (a) moles in the sample (b) copper atoms in the sample