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What type of mineral source (sulfide, oxide, halide, phosphate, silicate, carbonate, etc) are the following elements typically isolated from? Write the chemical formula for the source mineral (for example: silver, typical mineral source = silver sulfide, formula = Ag2S )
Potassium =
Calcium =
How many grams of sulfur (S) are needed to react completely with 355g of mercury (Hg) to form HgS?
How much heat is required to warm 223 g of ice from -45.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Write out the reaction mechanism for conversion of acetylferrocene to diacetylferrocene using acetic anhydride and 85% phosphoric acid.
A student performs an extraction using water and methylene chloride. Which is the top layer and which is
Write the structures for the major monobromination products that would be formed from each of the following substrates used. Explain your predictions.
what is the term for a solution whose concentration has been accurately determined usually three or four significant digits? normal solution standard soluatoin stock soluation
Calculate the change in internal energy of the system and determine whether the process is endothermic or exothermic: a) a balloon is heated by adding 850J of heat. It expands,
A 1.17 g sample of an alkane hydrocarbon gas occupies a volume of 674 mL at 28°C and 741 mmHg. Alkanes are known to have the general formula CnH2n+2.
The high-field:low-field integration ration is 2:1. Deduce the structure of the organic hald and explain the NMR signals. I'm thinking it's 1,1-dichloropropane.
How many hydrogens does an alkane with 17 carbons have How many carbons does an alkane with 74 hydrogens have Draw the structure and give the systematic name of a compound with molecular formula C5H12 that has
Calculate the equilibrium pH of a solution containing 5x10^-4 M Na2CO3 and 5X10^-4 M NaHCO3.
Consider the dissolution of MnS in water (Ksp = 3.0 × 10-14). MnS(s) + H2O(l)-> Mn2+(aq) + HS-(aq) + OH-(aq) How is the solubility of manganese(II) sulfide affected by the addition of aqueous potassium hydroxide to the system?
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