pH

The analysis of major cations and anions in a water sample collected from a city's water supply is given below. Ions present in minor concentrations are not given. Anions Cl- SO4^2...

Free residual chlorine concentration in water was measured to be 2 mg/l (as Cl2). The pH of water is 8.5. By using the chemical equation given below, the HOCl concentration (in μmo...

A facultative pond system is employed for wastewater treatment. Which of the following statements is/are true:

Free residual chlorine concentration in water was measured to be $2 \mathrm{mg} / \mathrm{l}$ (as $\mathrm{Cl}_2$ ). The pH of water is 8.5. By using the chemical equation given be...

A 100 mg of HNO3 (strong acid) is added to water, bringing the final volume to 1.0 liter. Consider the atomic weights of H, N, and O, as 1 g/mol, 14 g/mol, and 16 g/mol, respective...

A 100 mg of HNO 3 (strong acid) is added to water, bringing the final volume to 1.0 liter. Consider the atomic weights of H, N, and O, as 1 g/mol. 14 g mol. and 16 g/mol, respectiv...

Ammonia nitrogen is present in a given wastewater sample as the ammonium ion (NH4+) and ammonia (NH3). If pH is the only deciding factor for the proportion of these two constituent...

An amount of 35.67 mg HCl is added to distilled water and the total solution volume is made to one litre. The atomic weights of H and Cl are 1 and 35.5, respectively. Neglecting th...

Effluent from an industry 'A' has a pH of 4.2. The effluent from another industry 'B' has double the hydroxyl (OH - ) ion concentration than the effluent from industry 'A'. pH of e...

A water sample has a pH of 9.25. The concentration of hydroxyl ions in the water sample is

A wastewater sample contains $$10^{-5.6}$$ mol/l of OH - ions at $$25^o$$ C. The pH of this sample is

If tomato juice is having a pH of 4.1, the hydrogen ion concentration will be

Two Samples of Water A and B have pH values of a 4.4 and 6.4 respectively. How many times more acidic sample A is than sample B