What is the number of moles of silver chloride precipitated when excess silver nitrate is treated with one mole of pentaamminecarbonatocobalt (III) chloride?

The mass of $4.48 \mathrm{dm}^3$ of certain gas is 5.6 g at STP. Assuming ideal behaviour, identify the probable gas from following.

Identify the defect developed when an ion of an ionic compound is missing from its regular site and occupies interstitial position between lattice points.

Identify from following an example of intensive property?