The structure shown below is of which well-known drug molecule?
In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present?
At 300 K, a sample of 3.0 g of gas A occupies the same volume as 0.2 g of hydrogen at 200 K at the same pressure. The molar mass of gas A is ____________ g mol$$-$$1. (nearest integer) Assume that the behaviour of gases as ideal.
(Given : The molar mass of hydrogen (H2) gas is 2.0 g mol$$-$$1.)
A company dissolves 'x' amount of CO2 at 298 K in 1 litre of water to prepare soda water. X = __________ $$\times$$ 10$$-$$3 g. (nearest integer)
(Given : partial pressure of CO2 at 298 K = 0.835 bar.
Henry's law constant for CO2 at 298 K = 1.67 kbar.
Atomic mass of H, C and O is 1, 12, and 6 g mol$$-$$1, respectively)