Answer:
the one in 20 degrees will take the longest to dissolve because it is coz meaning that the water particles do not have much movement to erode the sugar particles.
Explanation:
i hope this helps and also i would like to know which chapter this is from
So percent yield is actual yield/theoretical times 100. actual yield is the number a chemical produces. theoretical yield is what it should produce
The combustion reaction is as expressed,
CxHy + O2 --> CO2 + H2O
The mass fraction of carbon in CO2 is 3/11. Hence,
mass of C in CO2 = (3.14 g)(3/11) = 0.86 g C.
Given that we have 1 g of the hydrocarbon, the mass of H is equal to 0.14 g.
moles of C = 0.86 g C / 12 g = 0.0713
moles of H = 0.14 g H / 1 g = 0.14
The empirical formula for the hydrocarbon is therefore, CH₂.