Ile gramów wodorotlenku sodu potrzeba do zobojętniania 12 g kwasu H3PO4?
pustynnaróża
3Na0H + H3PO4 => Na3PO4 + 3H20 M Na0H = 23+17 = 40g m kwasu = 12 g M kwasu = 3+31 + 16*4 = 98g 120 g Na0H -------------------- 98 g kwasu x -------------------------------- 12 g kwasu x = 12x120 /98 = 14,7 g
M Na0H = 23+17 = 40g
m kwasu = 12 g
M kwasu = 3+31 + 16*4 = 98g
120 g Na0H -------------------- 98 g kwasu
x -------------------------------- 12 g kwasu
x = 12x120 /98 = 14,7 g