Compound
X
has a molar mass of
134.13·gmol−1
and the following composition:
element | mass % |
---|---|
carbon | 44.77% |
hydrogen | 7.52% |
oxygen | 47.71% |
Write the molecular formula of
X
.
Compound X has a molar mass of 134.13·gmol−1 and the following composition: element mass % carbon...
-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 ?
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 ?
Compound X has a molar mass of 283.89 g.mol and the following composition: element mass % phosphorus 43.64% oxygen 56.36% Write the molecular formula of X.
7 A compound having an approximate molar mass of 165-170g has the following percentage composition by mass: carbon, 42.87%; hydrogen, 3.598%, oxygen, 28.55%, nitrogen 25.00%. Determine the empirical and molecular formulas of the compound. A compound consists of carbon and hydrogen. The molar mass of this compound id 44.1 g/mol The percent by mass of carbon is 81.71%. Determine the empirical and molecular formulas of the compound 8.
5.50g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 160./gmol, is burned completely in excess oxygen, and the mass of the products carefully measured: product mass carbon dioxide 9.08g water 2.48g Use this information to find the molecular formula of X .
5.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 44./gmol, is burned completely in excess oxygen, and the mass of the products carefully measured: product mass carbon dioxide 15.00g water 8.19g Use this information to find the molecular formula of X
3. Acrylic acid, used in the manufacture of some plastics, has the composition 50.0% C, 5.6% H, and 44.4% O by mass. What is the empirical formula? 4. Urea contains C, H, N, and O. A 2.54 gram sample of urea is found to contain 0.51 g carbon, 0.17 g of hydrogen, and 1.19 g of nitrogen. What is the empirical formula of urea? 5. Putrescine, a substance produced by decaying animals, is composed of 54.5 % carbon, 13.6% hydrogen,...
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
Calculate the percent composition of carbon in each of the following molecular formulas: The molar mass of carbon is 12.01 g / mol, fluorine is 19.00 g / mol, hydrogen is 1.01 g / mol and oxygen is 16.00 g / mol. A. C2F4 (MM = 100.02g / mol) B. C2H4O2 (MM = 60.02g/mol)
A compound of molar mass 166 contains only carbon, hydrogen, oxygen, and bromine. Analysis shows that a sample of the compound contains six times as much carbon as hydrogen, by mass. Part A Calculate the molecular formula of the compound. Express your answer as a chemical formula. Enter the elements in the order: C, H, O, Br. C6H7O2Br5