If the volume of a solid is 100 cm3 and its mass is 400 g, what is its density?

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.

You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use