2H2 + O2 —> 2H2O How many water molecules can be created when 6.5 moles of H2 are used?

HEL PLEASE

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

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.

Provide a stepwise curved arrow mechanism that fully explains the outcome of the reaction shown below. oh нао* heat он