M(K3PO4) = 39*3 + 31 + 64 = 212
n(K3PO4) = 20 / 212 = 0.09433
N = Na * n
N = 6.02 * 10^23 * 0.09433 = 0.5679 * 10^23 = 5.679 * 10^22
M(K3PO4) = 39*3 + 31 + 64 = 212
n(K3PO4) = 20 / 212 = 0.09433
N = Na * n
N = 6.02 * 10^23 * 0.09433 = 0.5679 * 10^23 = 5.679 * 10^22