7. A compound contains 30.4 g of nitrogen and 69.6 g of oxygen by mass. What...
A sample of an unknown contains 30.4% nitrogen and 69.6% oxygen. What is the empirical formula for this compound?
f a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was combusted in excess oxygen. This produced 2.20 g Co2 and 1.20 g H,O. A second sample of this compound with a mass of 4.86 g produced 3.19 g SO,. A third sample of this compound with a mass of 8.86 g produced 4.57 g HNO,. Determine the empirical formula of the compound. Enter the correct subscripts on the given chemical formula. empirical formula: CHNSO f a compound consisting...
A compound contains only carbon, hydrogen, and oxygen. Combustion of 18.92 g of the compound yields 27.73 g of CO2 and 11.35 g of H2O. The molar mass of the compound is 90.078 g/mol. *Each part of this problem should be submitted separately to avoid losing your work* 1. Calculate the grams of carbon (C) in 18.92 g of the compound: grams 2. Calculate the grams of hydrogen (H) in 18.92 g of the compound. grams 3. Calculate the grams...
A 2.75 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was combusted in excess oxygen. This produced 1.55 g CO, and 0.951 g H,O. A second sample of this compound with a mass of 6.21 g produced 6.37 g SOZ. A third sample of this compound with a mass of 8.41 g produced 3.39 g HNO3. Determine the empirical formula of the compound. Enter the correct subscripts on the given chemical formula. empirical formula: CHNSO
5. 74.1% carbon, 8.6% hydrogen, & 17.3% nitrogen by mass. Its molar mass = 160 g/mol. 6. 59.0% carbon, 7.1% hydrogen, 26.2%oxygen, & 7.7% nitrogen by mass. Its molar mass = 180 g/mol. Find the molecular formula of a compound given: 7. 212.1 g sample with 42.4 g hydrogen and 169.7 g carbon. Molar mass = 30.0 g/mol 8. Carbon & Hydrogen containing compound sample with molar mass = 114.26 g/mol. 1 mole of the sample contains 18.17 g hydrogen....
compound is found to contain 63.65 % nitrogen and 36.35 % oxygen by mass. the empirical formula is? the molar mass is 44.02 g/mol. what is the molecular formula? A compound is found to contain 6.360 % silicon , 36.18 % bromine , and 57.46 % iodine by mass. the empirical formula is? the molar mass is 441.7. what is the molecular formula? A compound is found to contain 64.80 % carbon , 13.62 % hydrogen , and 21.58 %...
Nitrogen forms a number of compounds with oxygen, for example nitrous oxide, N2O, is 6365% N by massA second compound, which contains two atoms of nitrogen per molecule, is 25.94 % N by mass. How many oxygen atoms are in the second compound?
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
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,...
A) compound a contains 3.153 g of oxygen per gram of carbon whereas compound b contains 6.306 g of oxygen per gram of carbon what chemical law do these data illustrate? -law of constant compositoon -law of multiple proportions -law of concervation of mass B) if compound a has an equal number of oxygen and carbon atoms what can we conclude about thw composition of compound B? -it has 2x as many oxygen that carbon atoms -it has 1/2 as...