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A hydrocarbon is found by combustion analysis to contain 87.17% carbon and 12.83 hydrogen by mass. Determine the smallest possible molecular formula for this compound.
Find the concentration of Cu2+ in equilibrium with CuBr(s)and 0.10 M Br
the specific heat of lead is 0.03 cals/J* degree C. If all the heat given up by the lead is used to melt the ice, how much ice is melted when the temperature drops to 0 degrees Celsius?
For which of the following substances will the molar solubility in water be the same as that in an HCl or NH3 solution
A sample of neon gas occupies a volume of 2.8 L at 1.8 atm. What would it's volume be at 1.2 atm
While in Europe, if you drive 109 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 29.0 mi/gal? Assume that 1euro=1.26 dollars.
The osmotic pressure of 0.010M MgSO4 solution at 25 degrees C is 0.318 atm. Calculate i, the van Hoff factor for this MgSO4 solution.
A sample of iron was dissolved iin hydrochloric acid. The liberated hydrogen was collected by displacement of water. The hydrogen occupied 262 mL at 26 c.
In the reaction: 2 Na + Cl2 = 2 NaCl, if 46.0 g of sodium react, what is the first step necessary in determining how much sodium chloride can form
suppose that 1.02 of rubbing alcohol evaporates from a 75.0 aluminum block. if the aluminum block is initially at 25c
Determine the pH, percent ionization and all of the equilibrium concentrations for each of the following.
Which of the following is true about any R enantiomer. A. it has a + rotation b. it has a - rotation c. it is a mirror image of the S enantiomer is it A only B only A and C or B and C
Identify the general outer electron configuration for each group of elements shown in this periodic table outline.
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