Ima guess D) change in mass
Answer:
C7H8N4O. The molecular formula C7H8N4O2 (molar mass: 180.16 g/mol) may refer to: Paraxanthine. Theobromine.
Answer:
Approximately 51 grams
Explanation:
First find the molar mass of carbon, which is around 12 grams by looking at a periodic table. Then, multiply 12 by 4 since there are 4 carbons. Next, find the molar mass of hydrogen, which is around 1 gram. Multiply it by 3 since there are 3 hydrogens. Finally add up both of the molar masses to get the total molar mass, which is 51 grams.
12g (4) + 1g (3)= 51 g
Hello!
To solve this question, we need to use the
Avogadro's Number, which is a constant first discovered by
Amadeo Avogadro, an Italian scientist. He discovered that in a mole of a substance, there are
6,02*10²³ molecules. Using this relationship, we apply the following conversion factor:

So, 8,50 * 10²⁴ molecules of Na₂SO₃ represent
14,12 moles of Na₂SO₃
Have a nice day!