Driving 25 miles in a car , which burns approximately 1800 g of petrol You can assume that petrol is predominantly octane , . Relative atomic masses , values : C 8 H 18 A r C = 12 H = 1

What is the temperature of one mole of helium gas at stp?

How many atoms are there in 5.70 mol of mg

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98