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What is the structure for an H NMR of C7H9NO giving signals of: 6.93, (0.93 H, triplet); 6.20 (1.03 H, doublet); 6.13 (1.01 H, doublet); 6.05 (1.03 H, singlet); 3.62 (3.00 H, singlet); 3.56 (3.01 H, singlet)?
describe how these limestone objects are corroded by the sulfuric acid in polluted air, what chemical reaction is involved here?
What is the [H3O+] in a solution that has a pOH of 2.29? Use E notation and 3 significant figures. Is the solution 1.95X10^12? show me how you got it as well
Consider this reaction involving an unknown element X. When 1.800 g of XBr reacts, 0.6758 g of Br2 is produced.
Complete combustion of 4.80 g of a hydrocarbon produced 14.7 g of CO2 and 7.02 g of H2O. What is the empirical formula for the hydrocarbon?
Calculate E when 900.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K
What would be the pH of 87 mL of the buffer to which 8.5 mL of 0.11 M hydrochloric acid has been added?
The substance CS2 has a melting point of -110.8°C and a boiling point of 46.3°C. Its density at 20°C is 1.26 g / cm3. It is highly inflammable. a.)Name this compound.
To make a phosphate buffer at pH 9.6 starting with 1L of 10 mM phosphoric acid (H3PO4; pKs are of 2.15, 6.82, and 12.38 determine how much KOH ), you could add?
assume you dissolve 2.56g of malic acid c4h6o5 in half a liter of water 500g. calculate the molarity molality mole
Water is composed of 11.2% hydrogen and 88.8% oxygen. What mass of water contains 16.0g of hydrogen?
What is the concentration (molarity) of the solution prepared by dissolving 1.83g of Co(NO3)2 in HCl acid to give a total volume of 100 mL
Draw a diagram of oseltamivir and label showing which atoms or functional groups could be involved in the binding of oseltamivir to the neuraminidase active site by
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