Chemistry for Physiology

0.9% means 0.9 g per 100 ml of solution = 9 g per 1000 ml (i.e. per litre)

This is a definition of a buffer solution. Choice B indicates a neutral solution, while choice D alludes to a weak acid.

High melting points and electrical conductivity are indicative of ionic compounds.

Only non-metal elements are involved in covalent (molecular) bonding.

Osmosis is the diffusion of water molecules through a membrane, down to their concentration gradient.

RBC would be unaffected by an isotonic solution as there will be no net flow of water into or out of the cells.

If molarity is 1.2 mmol/L = 1.2 × 10−³ × (6.02 × 10²³) particles per litre.

When the concentrations of hydronium and hydroxide ions are the same, their effects are cancelled, and the solution is neutral.

Kalium means potassium; the prefix “hypo-” means a lack or decrease in.

This is arsenic (As) – you need to consult a periodic table to answer this.