In kinetics experiments, the hydrolysis of the substrate sialic acid by neuraminidase appears to obey michaelis–menten kinetics. neuraminidase activity is critical for viral infectivity; thus, this enzyme is the target of much work by pharmaceutical companies to develop a drug to treat influenza virus infection. the drug "tamiflu" is a competitive inhibitor of neuraminidase. initial rate data collected at ph=6.15, 37 ∘c with 0.021 μm neuraminidase and 25.0 μm sialic acid gives a lineweaver–burk plot with a slope of 51.2 s. the kcat for neuraminidase at ph=6.15, 37 ∘c is 26.8 s−1. calculate km for the hydrolysis of sialic acid. express your answer with the appropriate units. km = ? value ? units
step 1. balanced equation
c₃h₈ + 5o₂ ⟶ 3co₂ + 4h₂o
step 2. calculation:
you want to convert moles of c₃h₈ to moles of co₂
the molar ratio is 3 mol co₂: 1 mol c₃h₈
moles of co₂ = 2.5 mol c₃h₈ × (3 mol co₂/1 mol c₃h₈)
= 7.5 mol co₂
the reaction will form 7.5 mol of co₂.
because one of them has more lined up, when a magnet comes near it, most of them will not have to adjust, and it will stick easier. this makes it a bit more magnetic than the 20 percent one.
protons and neutrons have a strong nuclear force between them that binds them together in the nucleus