51 An hydrocarbon has the formula, CeH1203. What is the mass percent of oxygen in this...
The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83% C, 6.35% H, and 55.83% Cl by mass. What is the empirical formula of this compound?
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
Consider a mass spec with a spectral mass of 94. a) What formula would you proposed if the hydrocarbon chemical only had carbons and hydrogens? b) What formula would you proposed if the hydrocarbon also had one oxygen? c) What formula would you proposed if the hydrocarbon also had two oxygen? d) What formula would you proposed if the hydrocarbon had one oxygen and one nitrogen?
1. Calculate the formula mass for BaSO4 2. What is the percent by mass of oxygen in sodium nitrate?
Consider a mass spec with a spectral mass of 94 What formula would you proposed if the hydrocarbon chemical only had carbons and hydrogens? What formula would you proposed if the hydrocarbon also had one oxygen? What formula would you proposed if the hydrocarbon also had two oxygen? What formula would you proposed if the hydrocarbon had one oxygen and one nitrogen?
1. Calculate the formula mass for BaSO4 2. What is the percent by mass of oxygen in sodium nitrate?
An unknown, non-branched saturated hydrocarbon has the mass spectrum below. What is the structure of the unknown hydrocarbon? 100. 57 71 85 50 29 113 127 141155 189 183 197 211 225 241 254 20 80 100 120 140 160 180 200 220 240 40 60 An unknown compound with formula CaHioO, gave a negative test with 2,4- dinitrophenylhy drazine; however, the unknown tested positive with the Jones reagent. When added to a solution of bromine dissolved in methylene, the...
what is the formula weight (molar mass) of a compound that has formula with 2 aluminum, 6 carbon and 12 oxygen atoms?
What is the molecular formula of a hydrocarbon with M+ = 132? (Write the formula with no subscripts, e.g. C4H10.) What is the sum of rings and double bonds in this compound? ___0123456789
What is the empirical formula for a compound that has the following mass percent composition: C, 55.80%; H, 7.03%; 0, 37.17%. tion Select one: O a. CH. b. C,H,O2 oc. CH,0 O d. CH.02 Оe. Cно