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If you have 430.0 mL of water at 25.00 °C and add 120.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.
which concept would explain why the carbon to carbon bond lengths in benzene c6h6 are identical? ahybridization blondon
A multivitamin tablet contains 40 milligrams of potassium. How many moles of potassium does each tablet contain?
Vanillin is an organic compound containing C,H and O. Combustion of 1.05g of vanillin produces 2.43g CO2 and 0.50 of H2O. The Molar mass of vanillin is 152.16g/mol. What is the molecular formula for vanillin
What is the mass of one mole of the gas when the density of a gas is 0.0151 g/mL at 150 degrees Celsius and 1.50 atmospheres?
What mass of iron (III) chloride in g is present in 2.50 ml of this solution
When a 41.7g sample of an unknown compound is dissolved in 500g of benzene, the freezing point of the resulting solution is 3.77oC. The freezing point of pure benzene is 5.48oC, and Kf for benzene is 5.12oC/m. Calculate the molar mass of the unkno..
How many milliliters of a 120 mL solution of 1.51 M BaCl2 must be used to make 16 mL of a solution that has a concentration of 0.3 M Cl-?
A buffer contains 0.40M base, B, and 0.25M of its conjugate acid, BH+, and has a pH = 8.88. What is the pH after 0.0020mol of HCl is added to 0.25L of this solution?
Identify the charged groups in the peptide shown below at pH=1 and at pH=7. What is the net charge of this peptide at these two pH values? val-met-ser-Ile-phe-arg-cys-tyr-leu
Draw the organic product(s) of the reaction of p-methylbenzoic acid with aqueous sodium hydroxide
2Al(s) + 2KOH(aq) + 4H2SO4(aq) + 22H2O(l) = 2AlK(SO4)2.12H2O(s) + 3H2(g) How many moles of H gas will evolved when 6 moles of Al react with excess KOH, H2SO4 and water?
Draw the structures of phthalic anhydride, ethylene glycol, and glycerol. Draw the polymer that results from phthalic anhydride & ethylene glycol. Draw the polymer that results from phthalic anhydride and glycerol.
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