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Calculate the vapor pressure of a solution made by dissolving 21.80 g of glucose (molar mass = 180.155 g/mol) in 460.0 g of H2O at 30.0 °C. (The vapor pressure of the pure solvent is 31.82 mmHg at 30.0 °C.)
Explain how many mL of 0.95522 M hydrochloric acid are required to titrate 2.152 g of sodium carbonate to the equivalence point
Five standar solutions of HBr are prepared by serials dilutions in which at each stage 10.00 mL are diluted to 160.00 mL. Given that the concentration of the most dilute solution
Three beakers labeled NaX (0.10 M, pH=7.0), NaY (0.10M pH=8.0), and NaZ (0.10 M pH =9.00). Organize the acids HX, HY and HZ in order of decreasing strength. As well find out the pKa of each.
When the container is re-sealed, the pressure is 185 kPa and the temperature is 10 degrees C. What is the ratio of the amount of gas lost?
Draw the three different isomers according to the number of C atoms in their main chain.
a 1.00l buffer solution is 0.250 m in hf and 0.250 m in naf. calculate ph of the solution after the addition of 100.0ml
what is the velocity of a first-order reaction when the reactant concentration is 6 x 10-2 m and the rate constant is 8
A 500-liter tank contains air at pressure 300 kPa and temperature 500K. Calculate the mass of the air in the tank
A certain reaction with an activation energy of 185 kJ/mol was run at 485K and again at 505K. What is the ratio of f at the higher temperature to f at the lower temperature
When 7 mL of a solution containing 3 M KNO3 is diluted to 21mL, a dilute solution is formed. What is the NO3- concentration in 10mL of the dilute solution?
an unknown monoprotic acid is titrated with 38.10mL of 0.265 M NaOH. Calculate the molar mass of the acid.
air contains nitrogen oxygen argon and trace gases. if the partial pressure of nitrogen is 587 mm hg oxygen is 158 mm
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