What mass of ZnCI2 can be prepared from the reaction of 3.27 grams of zinc with 3.30 grams of HCI? Zn + 2HCI —-> ZnCI2 + H2

Calculate the mass percent of hydrogen in methyl acetate

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

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.