(a)[2]
State what a mole means.
(b)[4]
As shown in Fig. 2.1, containers A and B are connected by a tube with negligible volume. The containers contain an ideal gas at a pressure of $2.3 \times 10^{5}\,\text{Pa}$. In container A, the gas has a volume of $3.1 \times 10^{3}\,\text{cm}^3$ and a temperature of $17\,^{\circ}\text{C}$. In container B, the gas has a volume of $4.6 \times 10^{3}\,\text{cm}^3$ and a temperature of $30\,^{\circ}\text{C}$. Calculate the total amount of gas, in mol, in the containers.