Answer:
98
Explanation:
molar mass of H3PO4=(3×1)+(31)+(4×16)=3+31+64=98
Which two conditions can limit the usefulness of the kinetic-molecular theory in describing gas behavior? ... Increasing pressure is causing a smaller change in gas volume. The closeness of particles of gas and their low speeds allow intermolecular forces to become important at certain pressured and temperature.