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What mass of carbon dioxide is produced from the complete combustion of 1.80×10?3 of methane? Express your answer with the appropriate units.
A substance containing 28.84% Nitrogen, 0.0648g Hydrogen, and Oxygen and Carbon, with (total) mass (of the substance) 1.2953, is burned in excess oxygen to produce 2.241 grams of carbon dioxide.
Prepare 1.00L of a pH~12 buffer with a total phosphate concentration of 0.050 M.You have at your disposal the following compounds
Aminabhavi et al. [T. M. Aminabhavi, V. B. Patil, M. I. Aralaguppi, J. D. Ortego and K. C. Hansen, J. Chem. Eng. Data 41, 526 (1996)] examined mixtures of cyclohexane with various long-chain alkanes.
What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?
Calculate the hydronium ion concentration and the pH after the addition of .25mL of .10 M HCl to each one. What accounts for the difference in hydronium ion concentrations? Explain this based on equilibrium concepts.
The density of the propane is 0.621 g/ mL Hint: begin by writing a balanced rquation for the combustion reaction.
Consider the titration of 50.0 mL of 0.217 M hydrazoic acid (HN3) (Ka = 2.6 x 10-5) with 0.183 M NaOH. determine the pH of the solution before any NaOH is added ?
how many different alkenes will be produced when each of the following substrates is treated with a strong base? a) 1-Chloropentane
If 5.0 g of H2 are reacted with excess CO, how many grams of CH3OH are produced, based on a yield of 86%? CO(g) + 2H2(g) -> CH3OH(l)
Calculate the approximate molecular mass of an unknown protein which had an elution volume of 9.0mL on the column.
An unknown compound has a forula of CxHyOz. You burn 0.1523 g of the compound and isolate 0.3718 g of CO2, and 0.1522 g of H2O. What is the empirical formula of the compound?
What is the simplest formula for Chalcocite if a sample of this ore contains 8.274 g copper and 2.088 g sulfur?
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