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if 1 mol of solute particles raises the boiling point of 1 kg of solvent by 3.63 degrees Celsius then calculate the approximate concentration of the solution in mol/kg, ?
at 23°C and 1.00 atm A sealed balloon is filled with 1.00 L helium . The balloon rises to a point in the atmosphere where the the temperature is -34°C and pressure is 240. torr . determine the volume change of the ballon when it ascends from 1 atm pressure to 240 torr pressure ?
Normally the alkaline earth carbonates (MCO3; M = Mg^2+, Ca^+2, Sr^+2, Ba+2) are insoluble in water. Why would the method used in this experiment work for calculating the molar mass of the alkaline earth? How would the calculations have to be cha..
An unknown mass of each of the given substances 1.Sand (tf=70.4 C),2.Pyrex glass(tf=67.6 C),3.water(tf=55.9 C) ,4.ethanol (tf=45.9 C), initially at 19.0 degrees Celsius, absorbs 1930 Joules of heat. Find out the mass of each substance.
Compute How many mg of the compound P do you have in 20ml of 4% (w/v) solution of P
Find molarity, molality, percentage composition, boiling and freezing point of a solution - What are the boiling and freezing points of the solution?
Find the partial pressure and concentration of Nitrogen, Oxygen, and Carbon dioxide.
Compute the number of moles of H2O will be formed from the reaction 75.1g benzene?
Find the pH solution & Hydronium ion concentration and What is the pH of a solution of 0.17 M acid and 0.81 M of its conjugate base if the pKa = 8.62?
In Horner-Wadsworth-Emmons reaction, a 1,2-disubstituted alkene was produced in which the olefinic protons exhibited at vicinal coupling of 9.0 Hz in the 1H NMR. What is the stoichiometry of the double bond.
Explain why it takes longer time when anyone cook an egg in boiling water while camping at in elevation of 0.5km in the mountain than it does it home.
Describe how this observation is consistent with the law of conservation of charge.
The state function to describe a particle on a sphere is given as Ψ=2sin^2(?)+cos?(θ).calculate the expectation value of its angular momentum about the z-axis, energy and the square of the total angular momentum L^2.
Differ from the ideal pressure? The value For N 2 gas is given as , a = 1.390 L2atm/mol2 and b = 3.910E-2 L/mol.
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