1. Ile moli NaOH potrzeba do zobojętniania 0,9 mola H3PO4?
2.Ile g H2SO4 powstanie w reakcji 16g SO3 z wodą?
1)
3NaOH + H3PO4 ---->Na3PO4 + 3H2O
3mole NaOH ---- 1mol H3PO4
xmoli NaOH ----- 0,9mola H3PO4
x = 2,7mola NaOH
2)
mSO3=80u
mH2SO4=98u
SO3 + H2O ---->H2SO4
80g SO3 ----- 98g H2SO4
16g SO3 ------ xg H2SO4
x = 19,6g H2SO4
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1)
3NaOH + H3PO4 ---->Na3PO4 + 3H2O
3mole NaOH ---- 1mol H3PO4
xmoli NaOH ----- 0,9mola H3PO4
x = 2,7mola NaOH
2)
mSO3=80u
mH2SO4=98u
SO3 + H2O ---->H2SO4
80g SO3 ----- 98g H2SO4
16g SO3 ------ xg H2SO4
x = 19,6g H2SO4