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A 6.0 g sample of [Ni(H2O)6]Cl2 is dissolved in aqueous solution. If an excess of ethylenediamine is added to the solution, solid [Ni(en)3]Cl2*2H2O forms. What is the theoretical yield of product from the reaction?
You have 135.8 mL of a 2.50, solution of Na2Cr04 (aq). You also have 125 mL of a 2.50 M solution of AgNO3. Calculate the concentration of Na+ after the two solutions are mixed together.
When Calcium Hydroxide is mixed with sodium phosphate, calcium phosphate precipitates out of solution. If 4.12 grams of calcium hydroxide is mixed with 5.02 grams of sodium phosphate in 500 mL of water
in the final step of the purification process in the miniscale procedure for preparing 1-bromobutane from sodium
At 2000C Kc is 2.4^3 for 2NO N2+O2, the initial concentration of NO is .170M what is the equilibrium concentration of NO?
from the length of the magnessium ribbon (4.6 cm) and the mass of a metal of magnessium (0.77 g/m) determine the mass of Mg that reacted.
If the pH of a solution is more than the pKa of an acid dissolved in it, is more of the acid in the protonated form or deprotonaqted form
What is the absorbance of solution B if it was prepared by taking 50 mL of solution A and diluting it to the mark in a 250 mL volumetric flask
A neon is made of glass tubing whose inside diameter is 2.5 cm and whose length is 5.5 m. If the sign contains neon at a pressure of 1.73 torr at 31 degrees celcius
Why do oxyacids become stronger when more oxygens are added. (as in the case of HNO2 being much weaker than HNO3)
If 0.25 mol of Br2 and .55 mol of Cl2 are introduced to a 3.0 L container at 400K, what will be the equilibrium concentration of Br2?
A hot-air balloon has a volume of 875 L. What is the original temperature of the balloon if its volume changes to 955 L when heated to 56 degrees celcius
Write a balanced chemical equation for the neutralization reaction upon which this titration is based, and indicate clearly which atom is being protonated.
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