Finish balancing the folowing equation: _ai(s)+3zn(no3)2(aq)=_ai(no3)3(aq)+ _zn(s) what coefficient does zn(s) have in the balanced equation

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

Use the gizmo to find the concentration of the mystery ch3cooh. use the titrant and indicator shown below perform the titration. what is the titrant volume? titrant analyte indicator titrant volume analyte concentration naoh ch3cooh phenophthalein select one: a. 20.0 ml b. 27.0 ml c. 30.0 ml d. 24.0 ml

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.