Each of the following questions consists of two statements, I in the left-hand column and II in the right-hand column. For each question, determine whether statement I is true or false and whether statement II is true or false. Select the appropriate answer combination from the choices below. Choices with a filled CE oval denote that statement II is a correct explanation of the true statement I.
|At the same temperature and pressure, L of hydrogen gas and L of neon gas have the same mass||
||equal volumes of ideal gases at the same temperature and pressure contain the same number of moles.|
Select an Answer
The correct answer is F, T.
According to the ideal gas law , if , , and are the same for two different gases, then (the number of moles) must be the same. Statement is therefore true. One mole of has a mass of grams and one mole of has a mass of grams. Equal numbers of moles of these gases do not have the same mass. Statement is therefore false.