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If you have a 750 ml flask that contains 1.235g of C5 H11 NO3 that is heated to 118.5 degrees C what is the pressure inside the flask?
A solution that contains 55.0 g of ascorbic acid (Vitamin C) in 250. g of water freezes at -2.34°C. Calculate the molar mass (in units of g/mol) of the solute. Kf of water is 1.86°C/m.
the following findings, express to the nearest atomic mass unit, in agreement with Dalton's atomic theory? expalin your answer.
determine what amount of heat is required to increase the temperature of sixty grams of ethylene glycol from 15.1
what is the molecular mass of met-enkephalin if 20.0 of an aqueous solution containing 15.0 met-enkephalin at 298
The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s) is 28.0 mV at 25 °C. Calculate the concentration of the Zn2
a rigid tank of 0.03cubic meters volume contains a mixture of liquid water and water vapor at 80kpa. the mass of the
how many grams of C5H10O2 need to be dissolved in 50 mL of solution, in order to have a 0.1 molar solution?
AgCl is a sparingly soluble salt, with a solubility of about 10-5 M in pure water. Adding KCN increases the solubility of AgCl because:
How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent?
An impure sample of potassium hydrogen phthalate, KHP, having a mass of 84.02 g was dissolved in water. This acid sample was neutralized by the addition of 536.0 mL of 0.125 M NaOH.
Calculate the work, w, and energy change, ?Urxn, when 20.51 g of Cu2O(s) is oxidized at a constant pressure of 1.00 bar and a constant temperature of 25°C.
If 4.00 mL of 0.200 M NaOH are added to 1L of 0.100m Calcium chloride will a precipitate form. What about 20mL
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