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describe how to prepare 50.0mL of 5.30x10-2M solution from pure drug and water. Calcutate the number of grams of drug to be wieghted for this solution
Determine how many liters of O 2 gas should be mixed at constant temperature and pressure?
How many grams of solute are required to make a 147 mL solution of sodium hydroxide with a concentration of 0.5330 M.
Show why this chemical is dangerous, by showing chemical reactions for its formation in the environment and its reactions in the atmosphere.
what is the global pH change incurred after injection of the HCl? What would the pH change be if the same amount of 1.000 M HCl were put into a gallon of pure water?
Calculate the final volume of a 0.500 L gas container that increased in temperature from twenty six degree Celsius to sixty degree celsius while the pressure increased from 760 torr to 1170 torr?
A buffer is prepared by mixing 615 mL of 0.50 M formic acid, HCHO2, and 385 mL of 0.50 M sodium formate, NaCHO2. Calculate the pH.
what spontaneous reaction will occur in aqueous solution among the ions Sn4+, Sn2+, Co3+, and Co2+ ? What will be the E°cell for this reaction?
Calculate the mass of water formed by the complete reaction of 758 g of propane (C3H8) with excess oxygen
Calculate the OH- of each aqueous solution with the following H3O+ A baking soda 1.1 X 10-8 M B orange juice 2.1 X 10-4
What is the pH of a solution in which 323 mL of HCl(g), measured at 26.8 degrees Celsius and 1.02 atm, is dissolved in 1.5 L of aqueous solution?
A certain first order reaction has a rate constant of 0.0215 s-1 at 24 degrees C. What is the value of rate constant at 70 degrees C if Ea=90.0 kJ/mol.
How many liters of ethane, measured at 17.0 degrees Celsius and 719 Torr, must be burned to liberate 2.94 X 10^4 kJ of heat?
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