1. Oblicz cząsteczkowe poniższych substancji chemicznych:
a) SO2, b) HNO3 c) H2SO3 d)Cl2 e)Ba(Oh)2 f)Na2Co3 g) Pb3(PO4)2 h) C2H5OH i) C3H7COOH j) Al2 (SO4)3
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a) mSO₂=32u+2*16u=64u
b) mHNO₃=1u+14u+3*16u=63u
c) mH₂SO₃=2*1u+32u+3*16u=82u
d) mCl₂=2*35,5u=71u
e) mBa(OH)₂=137u+2*16u+2*1u=171u
f) mNa₂CO₃=2*23u+12u+3*16u=106u
g) mPb₃(PO₄)₂=3*207u+2*31u+8*16u=811u
h) mC₂H₅OH=2*12u+6*1u+16u=46u
i) mC₃H₇COOH=4*16u+8*1u+2*16u=104u
j) mAl₂(SO₄)₃=2*27u+3*32u+12*16u=342u