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What is the molality of a solution prepared by dissolving 10.0 grams of methylamine, CH3NH2, in 50.0 mL of ethanol, C2H5OH?
Lewis Structure for a Nitrate Ion (NO3-1). How many possible resonance structures are there for the nitrate ion
How many grams of cisplatin are formed from 54.4g of K2PtCl4 and 36.4g of NH3 if the reaction takes place in 95% yield based on the limiting reactant.
calculate the percent yield of C2H5Cl if the reaction produces 188g of C2H5Cl
calculate the energy change for the reaction given the following ionization ie energy and electron ea affinity values.
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Compute the pH of the solution before the addition of any HNO3. Kb of NH3 =1.8 × 10-5.
Calculate the nuclear binding energy per mole of nuclei of and the binding energy per mole of nucleons for 31P. The required masses (g/mol) are: 1 1H = 1.00783; 1 0n = 1.00867; 31 15P = 30.97376
Balancing equation to calculate correct number of moles If CaC2 + 2 H2O --> C2H2 + Ca(OH)2 then, there are 65 grams of calcium carbide
Why is sodium bicarbonate used instread of sodium hydroxide for the initial extraction
When a strontium salt is ignited, it burns with a red flame. The frequency of the light given off by this flame is greater than
The next day you notice that some of the gas has leaked out. The pressure and temperature remain the same, but the volume has changed to 15.0 L. How many moles of gas (n_2) remain in the cylinder
Vitamin C is helpful in the absorption of what mineral (metal) when the two are present in the gut simultaneously?
Nickel nitrate and potassium carbonate react to form nickel carbonate and potassium nitrate. How many milliliters of 0.55M Ni(NO3)¬2 are needed to react with 85 mL of 0.25M K2CO3? First, write a balanced equation.
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