10. If 1.50 g of solid C.HsNH:Cl is dissolved in 1.0 L of water, what is...
10. If 1.50 g of solid C6H-NH3Cl is dissolved in 1.0 L of water, what is the pH of the solution? Molar Mass C&H NH3CI=129.59 g/mol A. 1.93 B. 3.27 c. 7.00 D. 10.73 E. 14.00
5. 1.024 g of an unknown molecular solid are dissolved in enough water to produce 200.0 mL of solution. The osmotic pressure at 25°C is 278.0 torr. What is the molar mass of the solid? 1342.5 g/mol
16) The molar concentration of hydronium ion in pure water at 25°C is 1.0 x 10 b) 0.00 c) 1.0 x 1014 d) 1.0 e) 7.00 17) A solution is prepared by dissolving 0.23 mol of hydrazoic acid and 0.27 mol of sodium azide in water sufficient to yield 1.00 L of solution. The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts...
5. 1.024 g of an unknown molecular solid are dissolved in enough water to produce 200.0 mL of solution. The osmotic pressure at 25C is 278.0 torr. What is the molar mass of the solid? 6a. Calculate the van't Hoff factor of a 0.085M potassium sulfate solution that has an osmotic pressure of 5.4atm at 25C 5. 1.024 g of an unknown molecular solid are dissolved in enough water to produce 200.0 ml. of solution. The osmotic pressure at 25...
If 6.6 g of butanoic acid, C_4H_8O_2, is dissolved in enough water to make 1.0 L of solution, what is the resulting pH? A table with K_a values can be found here. pH =
When dissolved in water, 1.0 mol of MgCl2 will dissociate into ____[A]____ mol of of Mg2+and ____[B]____ mol of Cl-. If you dissolved 1.0 mol of MgCl2 in water to make 1.0 L of this solution, the concentration would be ____[C]____ M, the osmolarity would be ____[D]____ osmol/L, the concentration of cations would be ____[E]____ Eq/L.
1. A l64-g sample of HF is dissolved in water to give 2.0 x 10' ml of solution. The concentration of solution is: A) 0.82 M B) 0.16 M C) 0.08 M D) 4.1 M E) 8.2 M 2. You have 75.0 mL of a 2.50 M solution of Na,CrO(ag). You also have 125 mL of a 2.01 M solution of AgNOs(ag), Calculate the concentration of Cro. after the two solutions are mixed together. A) 0.00 M B) 0.309 M...
7.00×10−3 mol of HBr are dissolved in water to make 15.0 L of solution. What is the concentration of hydroxide ions, [OH−], in this solution?
TC01H02 Solid calcium hydroxide weighing 1.9984 g (molar mass = 74.09 g mor') is dissolved in 100.0 mL of 1.000 mol/L HCl in an open calorimeter which has a heat capacity of 15.87 JK! The initial temperature of the Ca(OH)2 and HCl is 19.14 °C and and the temperature of the solution is 24.20 °C at the completion of the reaction. Density of 1.000 mol/L HCl = 1.015 g/mL. Heat capacity of the final solution = 3.950 JK'g? Use the...
3. (hard) 85.0 g NaCl was dissolved in 1.50 L water. 765 mL of this solution was heated on a hotplate 488 mL of water was evaporated off. What is the resulting concentration of the sodium chloride die beleid en die gelution? and then 7b] = D.7652 488 m > 1,438L