One molecule of a compound weighs 2.93 x 10-22 g. The molar mass of this compound...
One molecule of a compound weighs 2.14e–22 g. Its molar mass is: Select one: a. 121 g / mol b. 129 g / mol c. 2.81 g / mol d. none of these e. 7.76e–3 g / mol
What is the molar mass of a particular compound if 0.087 mol weighs 5.16 g?
. A compound with a molar mass of about 28 g/mol contains 85.7% carbon and 14.3% hydrogen by mass. Write the Lewis structure for a molecule of the compound.
-1 Compound X has a molar mass of 86.09 g-mol and the following composition: element mass % carbon 55.81% hydrogen 7.02% oxygen 37.17% Write the molecular formula of X. 5 ?
Complete the table below for calculating the molar mass of the compound phosphorus pentachloride. Molar mass of element Moles Mass in one mole of phosphorus pentachloride P D g /mol mol - g/mol mol Molar mass phosphorus pentachloride - g/mol
Compound X has a molar mass of 180.16 g-mol and the following composition: element mass % carbon 40.00% hydrogen 6.71% oxygen 53.29% Write the molecular formula of X. Х ?
Complete the table below for calculating the molar mass of the compound sulfur trioxide. Molar mass of element M ass in one mole of sulfur trioxide g/mol * * Moles mol mol g/mol Molar mass sulfur trioxide = g/mol
You dissolve 7.1 g of compound X (molar mass = 151.6 g/mol) in 1.62L of solvent Y, which has a density of 0.90 g/mL. What is the molality?
Compound X'has a molar mass of 579.43 g mol and the following element | mass % phosphorus 26.73% nitrogen | 12.09% chlorine 61. 1896 Write the molecular formula of X
6.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 176. g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured: product carbon dioxide mass 9.00 g water 2.46 g Use this information to find the molecular formula of X. x 6 ?