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1. What is the molarity of a solution in which 175 grams of KCl are dissolved in 1.00 L of solution?
2. Calculate the freezing point of a solution made from 94.0 grams of sucrose, C12H22O11, dissolved in 300 grams of ethanol.
3. Calculate the boiling point of a 2.00 molal solution of magnesium perchlorate, Mg(ClO4)2, in water.
Derive an expression for the internal pressure of a gas that obeys the Bethelot equation of state.
A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The initial volume was 3.00 L and the initial pressure of chlorine was 1.45atm The piston was pushed down to change the volume to 1.00 L
How many kilograms of CaCl need to be added to 25L of ice slush to lower the melting point by 5 degrees C? Please show work. kfp=1.86
An air flow with an initial Mach number of 1.5 and initial pressure p1 is expanded isentropically by passing through a deflection angle of 5° . Find the Mach number and pressure ratio after the deflection.
Suppose 50 mL of 0.020 M Hydhrochloric acid solution was mixed to 50 mL of 0.20 M acetic acid solution (Ka of acetic acid, CH3COOH, = 1.8 x 10-5). Determine the approximate pH of the mixture.
Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 x 102 and Ka2 = 6.4 x 105. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2SO3
The efficiency of light source = energy of visible light/ total energy 7. What is the relationship between light intensity and distance from the source?
In naming disubstituted benzenes, "1,2" substitution is also known as: A. meta substitution. B. para substitution. C. ortho substitution. D. isomer substitution. E. none of the above
If the original sodium tartrate solution had a concentration of 1.00 M instead of 0.100 M, what would the concentration of copper be in a solution created by combining 10 mL of it with 10 mL of the 0.100 M copper (II) sulfate solution.
The professed "D-line" of the sodium emission spectrum has a wavelength of 5893 Angstroms. Presuming the emission is due to an electron transition between two consecutive energy levels, compute the energy levels involved
While mercury is very useful in barometers, mercury vapor is toxic. Given that mercury has a DHvap of 56.9 kJ/mol and its normal boiling point is 356.7°C, calculate the vapor pressure in mm Hg at 25°C. the answer is 4.29 x 10-3 mm Hg
List all the covalent and non-covalent interactions that exist between amino acid residues in a polypeptide (besides the peptide bonds).
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