Atype of wood known as white pine has a density equal to 0.50 g/cm. what is the mass of a block of white pine that has the dimensions 5.0 cm by 10.0 cm by 200.0 cm ?

The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of 1 x 10^-3 moles of naoh? you may assume no volume change to the solution upon addition of the naoh.