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For the following reaction,6.90grams of phosphoric acid are mixed with excess potassium hydroxide. The reaction yields10.6grams of potassium phosphate.
Potassium hydroxide(aq) +phosphoric acid(aq)potassium phosphate(aq) +water(l)
What is the theoretical yield of potassium phosphate?
What is the percent yield of potassium phosphate?
Explain what volume of 0.200 M KOH must be added to 17.5mL of 0.135 M H3PO4 to reach the third equivalence point
10.00mL aliquots of an unknown containing element X was mixed with aliquots of a standard solution of element X for atomic absorption. The standard solution contained 1786.50ug X/mL.
Observe significant figure rules. Constants: ideal gas const = R = 0.08206 L atm/mole K; 1 mole of gas at STP occupies 22.41 L. Atomic masses: H 1.008 O 16.000 g/mole. You must show work to identify the limiting reagent; no credit for guessing.
Find the pH of the following - A: 17.91 g Na2HPO4*12H20 - 1.7 mL 1M NaOH - 998.3 mL H2O B: 13.16 g citric acid monohydrate - 25 mL 1M NaOH - 975 mL H2O
The calorimeter (excluding the water) has a heat capacity of 510J/K. Compute the molar heat of combustion for compound X (Mx = 90.00g/mol).
What are he difference between sigma and Pi bonds, and how are they used?
A 10.00mL aliquot was then diluted to 75.00mL with distilled water and passed through a strong-acid ion exchange resin. The eluate and washings required 35.94mL of the NaOH solution to reach the endpoint. Calculate the molar concentration of HCl a..
write balanced reaction equations for the reactions involved a) when aspirin dissolves in aqueous NaHCO3 and b) when aspirin is precipitated from a sodium acetylsalicylate solution by HCl.
Copper can be drawn into thin wires. How many meters of 34 gaugewire (diameter = 6.304 10-3 in)can be produced from the copper in 8.05 lb of covellite
The molecule ethanol (CH3CH2-OH) is very soluble in water. What intermolecular attraction is responsible for its solubility
36.45 mL of 0.11 M hydrochloric acid were added to 36.45 mL of 0.098 M aqueous barium hydroxide. Calculate the theoretical yield of the salt produced.
write the reactions. Also, identify the minor alkene product,C.
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