Chemistry Test ...

The solubility s of potassium nitrate is 140 g per 100 g of water at 70.9^◦C, which decreases to 63.6 g per 100 g of water at 39.9^◦C. The enthalpy of crystallization, ∆H_cryst

The Clark cell Zn|Zn²⁺// Hg₂SO₄|Hg is often employed as a standard cell since its emf is known exactly as a function of temperature. The cell emf is 1.423 V at 298 K and its temperature coefficient of voltage is -1.2 × 10^-4 V K^-1. What is ∆S_cell at 298 K?

An element has a bcc structure with a cell edge of 288 pm. The density of the element is 7.2 g cm^–3. Number of atoms present in 208 g of the element ?

Which of the following is correct?

Ratio of Boyle temperature and critical temperature of gas is:

Among the following, the surfactant that will form micelles in aqueous solution at lowest molar concentration at ambient condition is

Which of the following is wrong regarding titration of CH₃COOH with NaOH?

Arrhenius relation is described as K= A e^-Ea/RT which of the following statement is correct regarding activation energy

Which of the following is reducing sugar?

The tautomer of the shown compound is: