Consider the combustion of butane, C4H10:
2C4H10(l) + 13O2(g) > 8CO2(g) + 1H2O(l) ; dH = -2877 kJ (note that dH = ΔH)
1. What is the value of dH in units of kJ per mole of C4H10 burned? Also, is heat released or absorbed by this reaction? (Hint: What does the sign of the dH value indicate?)

What is the relation between concentration of reactants and the rate of chemical reaction?

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed

Why is the structure of molecule important to its function?