Whats the mass of a 1.25l sample of liquid that has a density of 0.921g/ml?

Hey there!

Volume in mL :

1.25 * 1000 => 1250 mL 

Density = 0.921 g/mL

Therefore:

Mass = density * volume

Mass = 0.921 * 1250

Mass = 1151.25 g 

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)