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How many moles of carbon dioxide are produced when 19.3 mole of propane gas is burned in excess oxygen? C3H8(g) +5O2(g)=3CO2(g) + 4H2O(l).
A solution prepared by dissolving 20.0 mg of insulin in water and diluting to a volume of 5.00 mL gives an osmotic pressure of 12.5 mm Hg at 300 K. What is the molecular mass of insulin?
Convert glyceraldehyde to glyceraldehyde phosphate (GAP),- Draw the fully protonated form.- Convert dihydroxyacetone to fully protonated dihydroxyacetone phosphate (DHAP).
A buffer is to be made with a pH of 8.50 by adding hydrobromic acid to one of the following bases. Which base is the best choice for making this buffer
copper crystallizes in a face-centered cubic lattice. if the density of metallic copper is 8.96 gcm3 what is the radius
What quantity of useful work can be obtained when Mg is added directly to the beaker of HCl. How can you harness this reaction to do useful work
Predict the order of elution for benzoic acid and methyl orange in normal phase column chromatography using polar SiO2 as the stationary phase. In other words, which compound should come off the column first? The structures of benzoic acid and met..
A compound contains only carbon, hydrogen, nitrogen and oxygen. Combustion of 0.314 g of the compound produced 0.426 g CO2, and 0.0620 g H2O. In another experiment it is found that 0.103 g of the compound produces 0.0460 g of NH3
what would be the ratio of the C-14 concentration in the innermost (oldest) ring compared with that in the outermost
How many grams of hydrochloric acid are in 500.0 mL of a 5.000 M solution? 1. 36.50 g 2. 54.75 g 3. 73.01 g 4. 91.25 g
what mass in grams of adipic acid C4H8(COOH)2 will neutralize 28.2 ml of .188 M NaOH at the phenolphthalien endpoint? (adipic acid is diprotic)
Subsequent to 50.0 min, 32.0% of a compound has decomposed. Explain what is the half-life of this reaction assuming first-order kinetics
copper and zinc elements 29 and 30 respectively appear next to each other on the periodic table. a 5.50 g sample of
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