Why must sample spots be above the solvent in paper chromatography

How do you solve the problems of SO2?

A gas mixture is made by combining 8.2 g each of ar, ne, and an unknown diatomic gas. at stp, the mixture occupies a volume of 19.44 l. what is the molar mass of the unknown gas

The enthalpy of formation for C6 H6 (I) is 49.0 kJ/mol. Consider the following reaction. 6 upper C (s, graphite) + 3 upper H subscript 2 (g) right arrow upper C subscript 6 upper H subscript g (l).

Why does the reaction rate of an enzyme-catalyzed reaction plateau at higher reactant (substrate) concentrations?

What is the number of atoms in 3.75 mol fe

Which type of soil holds the least water

Eq-43 which type of fire extinguisher should be onboard a vessel with a permanently installed fuel tank

5. Identify a suitable method that would be used to separate mixture of the follow [b]Water and ethanol c]Table salt dissolved in water d] iodine and potassium Pul the table below

How much energy is needed to convert 57.3 grams of ice at 0.00°c to water at 75.0°c? specific heat (ice) = 2.10 j/g°c specific heat (water) = 4.18 j/g°c heat of fusion = 333 j/g heat of vaporization = 2258 j/g?

A certain first-order reaction (A→productsA→products) has a rate constant of 9.90*10-3 s-1s-1 at 45 ∘C∘C. How many minutes does it take for the concentration of the reactant, [A][A], to drop to 6.