21.7 g CCl4 (1 mole CCl4/153.81 g)(6.022 X 1023/1 mole CCl4) = 8.50 X 1022 atoms of carbon tetrachloride ===========================
2,74 moles of CCL4 is equivalent to 421,44 g.
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85.636 grams carbon (1 mole C/12.01 grams) = 7.1304 moles of carbon ---------------------------------
0.5 carat carbon (0.2 grams/1 carat)(1 mole C/12.01 grams)(6.022 X 1023/1 mole C) = 5.0 X 1021 atoms of carbon ===================
Balanced equation. C + 2Cl2 -> CCl4 10 grams carbon (1 mole C/12.01 grams)(1 mole CCl4/1 mole C)(153.81 grams/1 mole CCl4) 128 grams carbon tetrachloride produced -----------------------------------------------------
To determine the number of moles in 8.52 grams of carbon tetrachloride, divide the given mass by the molar mass of carbon tetrachloride. The molar mass of carbon tetrachloride (CCl4) is 153.82 g/mol. Therefore, 8.52 grams of CCl4 is equal to 0.055 moles.
21.7 g CCl4 (1 mole CCl4/153.81 g)(6.022 X 1023/1 mole CCl4) = 8.50 X 1022 atoms of carbon tetrachloride ===========================
For this conversion, you need the atomic masses of the elements involved, found on any periodic table. Then you add them up with their abundance in the compound to find the total molar (molecular) mass. The molar mass is the mass in grams of one mole of the compound. Carbon = 12.0 grams Chlorine = 35.5 grams × 4 atoms = 142.0 grams ------------------------------------------------------------- Carbon tetrachloride = 154.0 grams/mole Then you do a gram --> mole conversion, taking the amount given and dividing it by the molar mass. Grams ÷ Molar mass = Moles 22.5 grams ÷ 154.0 grams = 0.146 moles CCl4
C = 12 grams/mole Cl = 35.45 grams/mole CCl4 = 12 + (35.45)x4 = 153.8 grams/mole 153.8 grams/mole / 6.022 x 1023 things/mole = 25.4 x 10-23 grams/thing where thing in this case would be a molecule of CCl4
To find the grams of CCl4 needed, multiply the number of moles (5.000 mol) by the molar mass of CCl4 (153.82 g/mol). (5.000 , \text{mol} \times 153.82 , \text{g/mol} = 769.1 , \text{g}) Therefore, 769.1 grams of CCl4 are needed.
4. 4 atoms of chlorine, one of carbon. The formula is CCl4
Divide the Molar Mass of C and Cl4 by 56 to get your awnswer!
2,74 moles of CCL4 is equivalent to 421,44 g.
Carbon tetrachloride (CCl4) has 4 chloride atoms.
A molecule of carbon tetrachloride contains one carbon atom and four chlorine atoms.
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