Does every polynomial equation have at least one real root?
a. Why must every polynomial equation of degree 3 have at least
one real root?
b. Provide an example of a polynomial of degree 3 with three
real roots. How did you find this?
c. Provide an example of a polynomial of degree 3 with only one
real root. How did you find this?
Write a one paragraph explanation about why Riemann sums are
necessary even though we have FTC from calculus I to get the exact
results of an integral.
why have I least change in( pH6.80) then (pH 7.70 )after the
addition one-drop of HCl or NaOH?
Solution
Measured pH
pH after addition of 1 drop 1 M HCl
pH after addition of 1 drop 1 M NaOH
pH after 10-fold
dilution
pH 6.80 Buffer
6.82
6.75
6.92
7.03
pH 7.70 Buffer
7.82
7.53
8.28
7.84