How many moles of oxygen are needed to produce 2 moles of Tetraphosphorus decaoxide (P4O10) in the reaction? P4(s) + 5O2(g) →P4O10(s)

a. 1 mole
b. 0.2 moles
c. 10 moles
d. 5 moles

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

Consider this initial-rate data at a certain temperature for the reaction described by

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.