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To prepare 5.0 L of a 3.50 M solution of Potassium Hydroxide (KOH), how many grams of Potassium Hydroxide must be used?
Consider the cell prepared with 2.0 M Cd2+ and 0.45 M Zn2+ solutions: Zn(s) + Cd2+(aq) --- Zn2+(aq) + Cd(s)
Determine the second order rate constant from the initial concentration and half life and what is the second order rate constant?
an antacid, contains CaCO3. If Tums is added to 20.0mL of 0.400 M HCl solution, how many grams of CO2 gas are produced?
how many joules are required to melt a 325 degrees Celsius ice cube at 0 degrees Celsius and to warm the liquid to 15 degrees Celsius
Calculate the mass, in grams for a gold sample that absorbs 225 J to change its temperature from 15 Celsius to 47 degrees celsius.
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?
Acetylene gas (C2H2) used in welding, produces an extremely hot ?ame when it burns in pure oxygen according to the reaction 2 C2H2(g)+5 O2(g) -→ 4 CO2(g)+2 H2O(g)
Calculate the basic buffer capacity of a solution of 50.00 mL of 0.334 M HC2H3O2 to which is added 50.00 mL of 0.154
Determine the enthalpy change if The heat released when 24.9 grams of Potassium K reacts with excess H2O water is 124 kilo joules?
How much heat (in {rm kJ}) is evolved in converting 1.00 mol of steam at 140.0 C to ice at -55.C? The heat capacity of steam is 2.01J/g* C and of ice is 2.09 j/g* C.
How can grains in a silo spontaneously explode? How is it that corn or any other grain can explode in a silo on it's own? How could a natural gas leak just cause corn to explode in a silo?
A 150 -g sample of water is cooled from 30 degrees C to 15 degrees C, thereby losing approximately 9420 J of heat. What is the change in E in J.
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