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Weight and volume measurements on a sample of pure cadmium showed its density to be 521 lb/ft3 is this a 3.5% error?
A sample of sodium reacts completely with 0.568kg of chlorine, forming 936g of sodium chloride. What mass of sodium reacted.
If a bottle of nail polish remover contains 150g of acetone, how much heat would be released by its complete combustion?
The directions tell you to dissolve 680g of sodium hydrogen sulfate, NaHSO4, in 3.4L of water. What is the concentration of this solution in g/100mL?
What mass of NaOH is needed to precipitate the Cd2+ ions from 48.0 mL of 0.500 M Cd(NO3)2 solution?
A voltaic cell consists of a Hg/Hg2^2+ electrode(E degrees=0.85V) and a Sn/Sn^2+ electrode(E degrees=-0.14V). Calculate[Sn^2+]if [Hg2^2+]=0.36 M and Ecell=1.04V at 25 degrees C.
The equilibrium constant at 25°C is 8.9 × 10-12. One hundred grams of magnesium hydroxide is added to 1.00 L of water and equilibrium is established.
which solution can conduct an electrical current?
When acetylene (ethyne) is passed through a solution of copper(I) chloride a red precipitate of copper acetylide, CuC2
A compound is analyzed and found to contain 12.1% carbon, 16.2% oxygen, and 71.7% chlorine (by mass). Calculate the empirical formula of this compound.
Determine the mL KOH needed at the equivalence point and the ph upon the addition of this volume of KOH.
How many moles of HCl are required to react with 0.610 g of Al(OH)3 in the above unbalanced reaction? Use at least as many significant figures in your molar masses as in the data given.
how much heat must be added to 36.2g sample of iron to increase its temperature by 250.0 degree C.
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