#1
Ok for chem we have to work out the ratio for black powder from the equation

2-KNO3 + 3-C + S = 3-CO2 + N2 + K2S

After calculating Mass Ratio e.t.c. i came up with the percentages 74.8% KNO3 13.3% C and 11.8% Sulfur. This is obviously different to the common 75:15:10 ratio most commonly quoted. What could be the reason for the differences?
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i say both. you always have the option to not use the pedal at all but it will still be there like that obsessed chick you took to homecoming and never called again, sitting there waiting for your call. so yea both
#2
So what if it's different from the common ratio? That's probably the point.

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#4
It seems like it's pretty close.

The slight variables are probally due to to factors out of your control... Like more air reacting with the nitrate to produce more of a byproduct such as O2 or CO2 or something....

Don't worry as long as you close to the percentages (and they are) you should be fine.
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#6
I would say that as well. It's just a common ratio. What you got looks very similar to the given ratio.

My explanation? Someone wasn't 100% accurate to within a molecule when they created the compound.
#7
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my reaction exactly
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#8
Sorry i worked out the molar mass of the reactants and then figured out the %mass from that
Quote by marsvoltaguy
i say both. you always have the option to not use the pedal at all but it will still be there like that obsessed chick you took to homecoming and never called again, sitting there waiting for your call. so yea both