Chemistry Answers

A 20.0 mL solution of NaOH is neutralized with 32.5 mL of 0.200 M HBr. What is the concentration of the original NaOH solution?

Explain why the boiling point of water is higher than that of hydrogen sulphide

Considered the reaction:

3 NaOH(aq)+ FeCI3(s) →3 NaCI (aq) + Fe(OH)3 (s)

(molar mass: Fe(OH)3=106.84 g/mole; FeCI3=162.19 g/mol

2) what volume of 1.6M NaOH will react with 33.0g of FeCI3

3. What is the concentration of 22.50 mL of NaOH if this was neutralized with 20.50 mL of 0.150 M HCI in the following reaction

Describe the metal-chelating antioxidant activity of quercetin. 

A chemist burned 150.0 g of C3H8 in the presence of 300.0 g of O2 and obtained 210.43 g of CO2. What is the percent yields of the combustion reaction?

Two pans of water are on different burners of a stove. One pan of water is boiling vigorously, while the other is boiling gently. What can be said about the temperature of the water in two pans?

Find the mass percent of concentration of a solution containing 19 g of solute and 0.158 kg of solvent.

Calculate the molarity of KCI containing 0.22mol of KCI in a 455 ml of solution

Calculate the molality of a solution containing 0.183 mol of sucrose dissolved in 2.425pounds (lbs).

If 0.590% solution of Na²CO3 will be used to precipitate Ca+² from solution, determine the amount of solution, in grams, needed to precipitate 5.00×10²mL of 0.01120 M Ca+²?