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The freezing point of a 1.00m solution of glucose C6H12O6 in water is -1.86C. Explain what is the freezing point of a 1.00m solution of MgCl2?
A. -1.86C
B. -5.58C
C. -0.62C
D. 0.00C
E. -2.79C
What is the internal energy change for the gas? Give your answer in joules (J), accurate to three significant figures.
A chemist needs to determine the concentration of a solution of nitric acid HNO3, She puts 865mL of the acid in a flask along with a few drops of indicator. She then slowly adds 0.600M Ba(OH)2 to the flask until the solution turns pink, indicating..
when a mixture at 273 K is heated to 473 K, how many different chemical changes occur? How many physical changes occur?
Mark all the true statements A.) The value of [R]/[P] is the equilibrium constant B.) The amount of P present will not change. C.) The concentration of [R] is constant. D.) The reaction P--> R no longer takes place
If each mole of gas occupies 59 L under the conditions of the explosion, how many liters of gas are produced. Express your answer using two significant figures. How many grams OF N2are produced in the detonation
the compound x2y is only partially dissociated in water solution to form x and y2- ions. a 0.0100 m solution is found
the density of toluene c7h8 is 0.867 gml and the density of thiophene c4h4s is 1.065 gml. a solution is made by
sample of h2o with a mass of 46.0 grams has a temperature of -58.0 c. how many joules of energy are necessary to heat
Suppose that you have a 2.0 L sample of hydrogen at 1.00 atm and 59 C. If you heat the sample to 84 C and it expands to a volume of 3.7 L, what will the final pressure be?
Tums calcium carbonate reactswith stomach acid ( HCI) according to the reaction below. One tablet of tums contains 500.0 mg CaCO3. If one tablet of tums is addedto 20.0 mL 0.100M HCI, how many grams of CO2 gas are produced?
what is the expected freezing point of a 0.50 m solution of li2so4 in water? kf for water is
The following equilibrium concentrations were measured at 800 K:[SO2]=3.0*10^-3M; [O2]=3.5*10^-3M; [SO3]=5.0*10^-2M. Calculate the equilibrium constant at 800K for each of the following reactions.
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