Explain why aqueous nacl is a good conductor but not in solid form.

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Do polar molecules have ionic bonds?