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The boiling point elevation of an aqueous sucrose solution is found to be 0.39*C. what mass of sucrose molar mass 342.30 g/mol would be needed to dissolve in 500.0g of water? Kb (water) = 0.512*C/m
Make an energy level diagram for the nueclear spin states in a magnetic field. Calculate the transition frequency in a 0.1 T field.
A sample consisting offive molecules has a total energy 5£. Each molecule is able to occupy states of energy j£,with j= 0,1,2,···,oo. (a) Calculate the weight of the configuration in which the molecules are distributed evenly over the available st..
Calculate the potential of a hydrogen ( p= 1.02 atm) electrode in an aqueous solution of HBr (0.05 m ) at 298 K A) assuming ideal solute behavior. B) using the Deby- Huckel equation.
How many Micromoles of A- and HA are present in the solution. If you now add 3mL of 1M NaOH, will you still have a valid buffer
whats a good hypothesis for the reactivity of halide ions lab in
benefits of using a more favorable direction of the reaction for a routine enzyme activity assay
What mass of lead sulfate is formed in lead-acid storage battery when 1.10 g of Pb undergoes oxidation?
What mass of Ar gas (in g) is contained in a 6.40 L tank in which its pressure is 0.703 atm and the temperature is 64.0°C? Do not enter units.
Calculate the pH during the titration of 50.00 ml of 0.0500 M NaOH with 0.1000 M CH3CO2H after the addition of the following volumes
A reaction in which A,B ,C and react to form products is first order in A, second order in B, and zero order in C. What is the overall order of the reaction?
An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500m mL sample of air at 700 torr and 38 degrees celsius, she adds 20.00 mL of 0.01017 M aqueous iodine, which reacts as follows
What is the molarity of ZnCl2 (aq) that forms when 15.0 g of zinc completely reacts with an aqueous solution of Copper (ii) chloride.
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