An unknown diprotic acid requires 28.20 mL of 0.104 M NaOH to completely neutralize a 1.400-g sample. Calculate the approximate molar mass of the acid.
A. 239 g/mol
B. 341 g/mol
C. 682 g/mol
D.955 g/mol
E. 477 g/mol

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.