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Consider the following chemical equation. Na3PO4(aq) + Ca(OH)2(aq) ? Ca3(PO4)2(s) + NaOH(aq) How many grams of calcium hydroxide must react to give 2.69 g of Ca3(PO4)2?
A solution formed by mixing 11.0 ml of 0.110 M HBr with 25.0 Ml of 0.190 M HCl. what is the ph of the strong acid?
A certain toilet cleaner uses NaHSO4 as its active ingredient. In an analysis, 0.500 g of the cleaner was dissolved in 30.0 mL of distilled water and required 57.4 mL of 0.00535 M NaOH for complete neutralization in a titration.
The stilbene molecule has seven double bonds, yet in this reaction, only one of them undergoes addition with the Br2 generated in the reaction mixture. What functional group(s) is(are) the other six bonds in, and what can you say about the reactiv..
Calculate the work, heat, energy and enthalpy change upon: a) expansion by 3.3 L at p=const (isobaric). b) isothermal expansion by 3.3. L against a constant external pressure of 30.0 kPa c) reversible isothermal expansion by 3.3 L.
One a cold day a person takes a breath of 450 ml of air at a pressure of 745 mm Hg and room temperature of 21oC. What is the volume of this air in the lungs at 37oC and 758 mm Hg?
In a hydrogen fuel cell, hydrogen gas and oxygen gas are combined to form water. Write the balanced chemical equation describing this reaction (using lowest whole-number coefficients).
What is the mass of a piece of magnesium wire which produces 39.30 mL of hydrogen gas collected over water at 23 degrees celsius
What products result from the addition of aqueous solutions of F_e (C_2 H_3 O_2 )_2 (aq)and N_a3 PO_4 (aq)?
Provide the name(s) for the secondary alcohols with the chemical formula C6H14O that have a 5-carbon chain
When a container is filled with 3.00 mol of H2 , 2.00 mol of O2 , and 1.00 mol of N2 , the pressure in the container is 465 kPa. determine the partial pressure of O2?
Calculate the concentrations of all species at equilibrium for each of the following original mixtures.
a solution contains naphthalene c10h8 dissolved in hexane c6h14 at a concentration of 13.13 naphthalene by
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