Calculate the PH of 32 mmol of HCl in 75cm^3 solution. Assume HCl fully dissociates.
32 mmol = 0.032 mol
75cm3 = 0.075dm3
n = c x v so c = n / v
c = 0.032mol/0.075 dm3 = 0.426moldm-3
pH = -log[H+]
pH = -log(0.426) = 0.37 (no units)
AP
Related Chemistry A Level answers
All answers ▸State the trend in electronegativity for the elements of group 17 and explain why this trend occurs.
Methylpropene reacts with hydrogen bromide to form 2-bromo-2-methylpropane, draw the mechanism and state the major products.
A buffer solution is made with a pH of 5.000. Solid sodium ethanoate, CH3COONa, is added to 400 cm^3 of 0.200 mol dm^–3 ethanoic acid (Ka = 1.75 × 10^–5 mol dm^–3). Calculate the mass of sodium acetate that must be dissolved in the acid to prepare this
Describe how to test for and identify halide ions in a solution.