¿Cuantos moles de Fosfato de Bario se producen cuando reaccionan 0.38 mol de Nitrato de bario? Suponga que el ácido fosfórico está en exceso. Base sus cálculos en la siguiente ecuación. 3 Ba(NO3)2(aq) + 2 H3PO4(aq) → 1 Ba3(PO4)2(s) + 6 HNO3(aq)

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

What are the two largest greenhouse gases

Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]