To the eye – taken by itself – Alpha Centauri A appears as the fourth-brightest star seen from Earth, just slightly outshone by Arcturus. However, the combined light of Alpha Centauri A and B is slightly greater than Arcturus, so in that sense it appears as the third-brightest star visible in Earth's sky.
Answer:
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles C3H8, or 44.09562 grams
Should be 33. but I habe no clue