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