A 1.4350-gram of KHP (actual formula = KHC8H4O4; molar mass = 204.22 g/mol) was dissolved in 50.00 mL of deionized water. The resulting solution was titrated with NaOH solution of unknown concentration. If 32.85 mL of the NaOH solution was required to reach the equivalent point, what was the molar concentration of the NaOH solution? The acid-base reaction is as follows: KHC8H4O4(aq) + NaOH(aq) --> NaKC8H4O4(aq) + H2O(l) (A) 0.1405 M (B) 0.2139 M (C) 0.08481 M (D) 7.0267 x 10–3 M
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
- A 1.4350-gram of KHP (actual formula = KHC8H4O4; molar mass = 204.22 g/mol) was dissolved in 50.00 mL of deionized water. The resulting solution was titrated with NaOH solution of unknown concentration. If 32.85 mL of the NaOH solution was required to reach the equivalent point, what was the molar concentration of the NaOH solution? The acid-base reaction is as follows:
KHC8H4O4(aq) + NaOH(aq) --> NaKC8H4O4(aq) + H2O(l)
(A) 0.1405 M
(B) 0.2139 M
(C) 0.08481 M
(D) 7.0267 x 10–3 M
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