Question
Use the table below to work out the mass in grams of 1 mole of carbon dioxide. Enter your answer as a number Element & Relative atomic mass (Ar) mathrm(H) & 1 mathrm(C) & 12 mathrm(O) & 16 mathrm(Na) & 23 mathrm(Ca) & 40
Answer
4.5
(274 Votes)
Xylona
Elite · Tutor for 8 years
Answer
44
Explanation
This question is asking for the mass in grams of 1 mole of carbon dioxide (CO2). To find this, we need to calculate the molecular mass of CO2. A molecule of CO2 is made up of one carbon atom and two oxygen atoms. From the table, we can see that the relative atomic mass of Carbon (C) is 12 and that of Oxygen (O) is 16. Given that CO2 has two oxygen atoms, the total mass contributed by the oxygen atoms will be 2 times 16, which is 32. Therefore, the molar mass of CO2 will be the mass of C (12) plus the mass of the two O atoms (32), which results in 44 grams/mole. So, the mass in grams of 1 mole of CO2 is 44 grams.