Other Chemistry Answers

What is the hydroxide-ion concentration of an aqueous solution having a hydronium-ion concentration of 1.905 × 10⁻⁵ mol/L?

The base in the forward reaction is ________. HCO₃⁻ + H₂O → H₂CO₃ + OH⁻

H₂O
HCO₃⁻
OH⁻
H₂CO₃

Which of the following acids is the weakest acid?

hypochlorous acid, Kₐ = 3.5 × 10⁻⁸
nitrous acid, Kₐ = 4.5 × 10⁻⁴
acetic acid, Kₐ = 1.8 × 10⁻⁵
hydrogen peroxide, Kₐ = 2.4 × 10⁻¹²

Which of the following solutions would you expect not to conduct electricity?

HCl in water
sugar in water
NaCl in water
H₂SO₄ in water

Why 2M of sulphuric acid is stronger than 18M of sulphuric acid

A sample (m = 0.6914 g) containing only MgSO4 and K2SO4 is treated with a barium nitrate-solution. Formulate the reaction equation(s) for this procedure. Calculate the percentage of each salt in the mixture, when 0.9797 g of dried precipitate were obtained?

Iron-ions can be quantified by a gravimetric as well as by a titrimetric method. Compare
both methods regarding their advantages and disadvantages, their applicability for iron present in different matrices, LOD and other method characteristics?

What will be the volume of a 3.0M solution using 1.0g of NaCl?

Consider the neutralization reaction that occurs upon the reaction of aqueous potassium hydroxide with aqueous hydrochloric acid.

Write a complete ionic equation for this neutralization reaction.
Write a net ionic equation for this neutralization reaction. Identify all of the phases in your answer.

Solution A has a pH of 3. Solution B has a pH of 6.
Which solution is more acidic?
By how many times?
What is the conjugate acid of HCO3−? What is the conjugate base of it?