Chemistry Answers

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The equilibrium mixture is found to contain 0.07,0.11,0.03 and 0.03 moles of CO,H2CH4 and H2O respectively for the reaction: CO(g) +3H2(g)O CH4(g)=H2O(g).

A 400 mL buffer solution was prepared by reacting sodium acetate, CH3COONa, with 1.00 M acetic acid, CH3COOH, with a pH of 4.56 Calculate the mass of CH3COONa required to prepare the solution. Ka CH3COOH= 1.75 x 10-5

A solution of Ba(OH)2 was standardized against 0.1016 g of primary standard benzoic acid C6H5COOH Calculate the concentration of if the end point was 20.89 mL.

Determine the molecular formula of alaxin C5H8nO5 if it's relative molecular Mass is 284

What kind of intermolecular forces act between a chlorine monofluoride molecule and a fluoride anion?

5.One 55 g serving of a particular cereal supplies 270 mg of sodium, 11% of the recommended daily allowance. How many moles and atoms of sodium are in the recommended daily allowance?

Determine the molecular formula of a compound having a simplest formula of CH

and formula mass of 78.

A compound with a molecular mass of 42 is found to contain 85.64% carbon and

14.36% hydrogen by mass. Find its molecular formula.

Calculate the number of moles of NH₃ present in 100 g of NH₃