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A 1.000 g sample of limestock rock is crushed to powder also then treated with 50.00 ml of 0.1012 M HCL. The excess acid needed 25.26mL of 0.1050 M NaOH for neutralization. Compute the percent by mass of the calcium carbonate in the rock.
How many moles of excess reactant are present when 366 mL of .206 M sulfuric acid reacts with .596 L of .172 M sodium hydroxide to form water and aqueous sodium sulfate
The molar heat capacity of is described by the following equation over the range 300
if all ionic substances are completely ionized the aqueous solution with the? lowest freezing point would be ??a 0.25 m
The cell potential of the subsequent electrochemical cell depends on the pH of the solution in the anode half-cell
The measured dipole for a binary molecule is 0.53 D with a bond length of 219 pm. What is the separated charge, in coloumbs (ID=3.34x10^-30).
The temperature of a sample of water increases from 21.9°C to 45.3°C as it absorbs 5669 J of heat. What is the mass of the sample.
A 4.5 g sample of LiCl at 25 degrees Celsius dissolves in 25 mL of water also at 25 degrees Celcius. The final equilibrium temperature of the resulting solution is 60.8 degrees celsius. What is the enthalpy of solution delta H subscript 8 of LiCl ..
an electrical motor is used to operate a carnot refrigerator with an interior temperature of 0 degrees celsius. liquid
What is the temperature (in C) of a 0.536g sample of neon gas, Ne(g), that occupies a 500.0mL container at a pressure of 762.3 mmHg
If the molecular weight of a molecule is 180, how many grams would be required to make 100 milliliters of a 2 molar solution
determine at what pressure will pure H 2 O start to boil if its temperature is seventy five degree Celsius
The equilibrium constant for the following reaction is .20 at 100 degrees C. if an equilibrium mixture contains solid carbon, [H2O]=.40 M, and [CO]=.40 M,what is the [H2]? C(s)+H2O(g) CO(g)+H2(g)
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