We would use miles to measure the diameter of the earth because that is the greatest measure of length that is possible to measure something large.
Given teh equation adn the heat of reaction, reaction 2's heat of reaction can be obtained by simply multiplying teh heat of reaction of 1 by 3. The final answer is -6129 kJ.
I think it’s 44.6 J, but I’m not to sure so hoped this helped /:).
We need to get the mole ratio between the elements. To do this, we will divide by the the smallest number of moles given as follows:
0.5 mole of Na / 0.5 = 1
0.5 mole of S / 0.5 = 1
0.75 mole of O / 0.5 = 3/2
Now, we need to get rid of the fractions. To do this, we will multiply all the ratios by 2:
Na = 1 x 2 = 2
S = 1 x 2 = 2
O = 3/2 x 2 = 3
So, in the simplest formula, the ratio Na:S:O is 2:2:3
This can be written as: Na2S2O3 which is known as sodium thiosulphate.
