Question

calcular la molaridad de Ba(OH)2 si 500ml de la solucion contiene 150g del hidróxido

Answer 1

Mm Ba(OH)2 = 171.34 g/mol
1. convertir mL a L
L = 500 / 1000 = 0.500 L
2. Calcular moles n = m/Mm
n = 150 g / 171.34 g/mol
n = 0.875 moles
3. calcular M = n/V(L)
M = 0.875 mol / 0.500 L
M = 1.75 molar