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A 6.16 g sample of a solid containing Ni is dissolved in 20.0 mL water. A 5.00 mL aliquot of this solution is diluted to 100.0 mL and analyzed in the lab. The solution was determined to contain 5.03 ppm Ni. Determine the molarity of Ni in the 20.0 mL solution? Determine the mass in grams of Ni in the original sample? Determine the weight percent of Ni in the sample?
Substitution and elimination reactions are competing reactions. Under what conditions can you ensure that substitution will predominate
The normal boiling point of carbon disulfide is 46.0 °C and its H°vap = 14.2 kJ mol-1. Draw a complete Lewis structure for carbon disulfide
Give explanation why it is not practical to evaluate the solubility of the two salts AX and BY2, by simply comparing the solubility product constants?
A 35.0 mL sample of 0.150 M acetic acid (CH3COOH) is titrated with 0.150 M NaOH solution. Calculate the pH after the following volumes of base have been added.
A solution is prepared by dissolving 13.4 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 12.00 mL sample of this stock solution is added to 57.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
what is the purpose of anhydrous CaCl2? Why it is important that none of the solid CaCl2 be included in the final distillation of your 1-bromobutane?
A sample of 2.376 g ether (The compound known as diethyl ether [(C2H5)2O], commonly referred to as ether, contains carbon, hydrogen, and oxygen) was combusted in an oxygen rich environment to produce 2.887 g of H2O (g) and 5.643 g of CO2 (g).
Calculate the percentage of chlorine in a sodium hypochlorite powder (disinfectant for pools) if 5.0 kg of powder gives off 2.3 kg of chlorine.
Draw Fischer projection formulas of the major product of the reaction between E-2-methyl-3-hexene and aqueous Br2.
Determine the value of work (w) when a piston of volume 0.2 litres expands against an external pressure of 200 kPa to a volume of 3.4 Litres?
In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask.
What mass of glucose can be produced from a photosynthesis reaction 6CO2(g) + 6H2O -> C6H12O6(aq) + 6O2(g) that occurs using 18.4 mol CO2? Answer in units of g.
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