1. Sabendo que a massa atômica do oxigênio é igual a 16u, calcule a massa molar do ozônio (O3):
a) 48 g/mol b) 16 g/mol c) 64 g/mol d) 32 g/mol e) 128 g/mol

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

How many atoms are there in 5.70 mol of mg