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A 2.52 g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess O2 to yield 3.52 g of CO2 and 0.839 g of H2O. Another sample of the same compound, of mass 4.14 g, yielded 1.75 g of SO3. A reaction to determine the nitrogen content was carried out on a third sample with a mass of 5.66 g and yielded 1.88 gHNO3 (assume that all of the nitrogen in HNO3 came from the compound).
Calculate the empirical formula of the compound.
Express your answer as a chemical formula. Enter the elements in the order: C, H, S, N, O.
Calculate the number of moles of Ca(NO3)2 originally present
The mass of an average blueberry is 0.78 and the mass of an automobile is 2200kg.Find the number of automobiles whose total mass is the same as 1.0 blueberries.
Explain the hybridization state of C and N atoms in tryptophan as well as determine the number of sigma and pi bonds in the molecule.
Problem- What mass of H 2 O is required to form 1.3L of O 2 at a temperature of 325K and a pressure of 0.966atm
Calculate the empirical formula for the following compound: potassium tartrate found in baking powder: 20.8% K, 2.7% H, 25.5% C, and 51.0% O
Question- The pKa of acetic acid, CH3COOH, is 4.74. A buffer solution was made using an unspecified amount of acetic acid and 0.30 moles of NaOOCCH3 in enough water to make 1.50 L of solution. The pH of the solution is 4.50. How many moles of CH3C..
If a raindrop weighs 65 mg on average and 5.1 105 raindrops fall on a lawn every minute, what mass (in kg) of rain falls on the lawn in 1.5 h?
An object has a mass of 50.0g. When it is dropped into a graduated cylinder containing 15mL of water, the water level in the cylinder rises to 32mL.
A dry-cleaning solvent (molecular weight = 146.99 g/mol) that contains C, H, and Cl is suspected to be a cancer-causing agent. When a 0.112 g sample was studied by combustion analysis, 0.201 g of CO2 and 0.0272 g of H2O formed.
A biodiesel is formed from esterification of oleic acid with 1-propanol. When comparing the oleic acid with the biodiesel (ester), we conduct an inflammability test Explain why the biodiesel is flammable while oleic acid isn't.
Nitrogen Molecule (N2) has radius of about 0.2nm. Presume that nitrogen molecule is spherical in shape, Calculate?
Current annual energy consumption in the United States is 99.3 quads. Assume that all this energy is to be generated by burning CH4(g) in the form of natural gas.
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