Consider the hall reactions below for a chemical reaction
znzn2+ (aq) + 2e
cu? " (aq) + 2e" - cu(s)
what is the overall equation for this chemical reaction?
zn(s) + cu2+ (aq) -- zn2+ (aq) + cu(s)
zn(s) + cu2+ (aq) cu* (ag)+ 2e"
zn2+ (aq) + cu(s) cu(aq) + zn(s)
zn2+ (aq) + 2e" - cu2(aq) + 2e

Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap

What is the empirical formula for c4h8o2

Is 9 correct? and can someone me with 10? it’s due tomorrow, you