The answer would be 5. because the last zero is a holding place because the number is in front of the decimal. They other zero counts because they are being sandwiched.<span />
Answer:
12.01 grams per mole
Explanation:
theres no sample or example so if theres grams of Carbon, convert it to moles using 12.01g/mol
I believe the oxygen atom has 8 protons and 8 neutrons.
Answer:
0.0250 g
Explanation:
176.12 g/mol* 0.000142 mol =0.0250 g
