Answer:
614 034 kg
Explanation:
n = m/Mm
m = n * Mm
Mm(MgSO4) = 1 * 24.3 * 1 * 32.1 * 4 * 16 = 49921.92
m = 12.3 * 49921.92
m = 614 034 kg
The area directly above the light bulb is warmest because of convection.
Heat released from the combustion of 45.5 grams of CH4 in excess oxygen gas is calculated as follows
calculate the number of CH4 moles used = mass/molar mass
= 45.5 grams/ 15 g/mol =2.84 moles
heat released is therefore= moles x 890 kj
= 2.84 x 890=2527.6 kj/mol
<span>When a molecule absorbs a photon, one of its electrons is raised to the excited state</span>
