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How many grams of potassium fluoride (KF) can be produced from the reaction of 92.3 g of potassium with 55.5 g of fluorine gas. The balanced equation of the reaction is: 2 K(s) + F2(g) 2 KF(s)
If you have 50 ml of a buffered solution of 0.15M HNO2 and 0.05M NaNO2, how many ml of 0.2M HCl can you add before the pH changes significantly
a piece of als at 94degc is placed in 65g of h2o at 28degc. the aluminum cools and after equilibrium the final
What is the molar enthalpy of solid sodium hydroxide reacts with an aqueous solution of hydrochloric acid, forming water amd an aqueous solution of sodium chloride?
Write a chemical equation for the formation of methionyl glycine
The pOH of a solution containing 0.30 M of a weak base is 3.92. What is Kb for the base
Calcium phosphate is used in fertilizer products. How many grams of calcium phosphate can be produced by the reaction of calcium chloride with potassium phosphate if we use 5.0 grams of calcium chloride with 8 grams of potassium phosphate
An aqueous solution is 28.0% by mass ethanol, CH3CH2OH, and has a density of .957 g/mL. What is the molality of ethanol in the solution
calculate the amount of energy present in the following photons and find the region of electromagnetic spectrum for
can someone please answer these questions regarding the endo and exo products formed through two different transition states in the reaction between furan and maleic anhydride.
Toluene (C6H5CH3) is a liquid compound similar to benzene (C6H6). Calculate the mole fraction of toluene in the solution that contains 138 g toluene and 106 g benzene.
If 25.0 mL of AgNO3 is needed to precipitate all the Cl- ions in a 0.795 mg sample of KCl(forming AgCl), what is the molarity of the AgNO3 solution.
What is the specific heat capacity of 5.0 g of metal, if 200 J of heat raises the temperature of the metal 45 C
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