- How many moles of hydrogen are in a 23 gram sample of propane gas(C3H8)?

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Lim x->0 x>0 ln(sin2x)/ln(sin4x) lim x->+∞ ln(x^2+e^x)/ln(x^4+e^2x)? Prove: When f(x) is divided by [mx + b]^2
The remainder is
[f'(-b/m)(mx + b) + f(b/m)]
Where f(x) = a-0x^n + a-1x^(n-1) +.... a-(n-1)x + a-n? How to check polarity of load wires? Anybody give this solution pls? What is the difference between qualitative and quantitative data collection and give example of qualitative and quantitative indicator.?