The oh- 1.3 x 10 -6 m for a 0.025 m solution of a weak, Ask an Expert

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The [OH-] = 1.3 x 10^ -6 M for a 0.025 M solution of a weak base. Calculate the value of Kb for this weak base.

a) 5.2 x 10 ^ -5
b) 3.1 x 10 ^ -7
c) 7.7 x 10 ^ -9
d) 4.0 x 10 ^ -8
e) 6.8 x 10 ^ -11

The pascal is the SI unit for pressure defined as force (in newtons) per unit area ( in m2). If the force exerted by a gas on a 2.5 square meter area is 8.5 newtons, what is the pressure of the gas in Pa?

A. 0.29
B. 0.21
C. 8.5
D. 17
E. 3.4

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