0.225L solution of H2CO3 is neutralized by 0.0880L of a 1.22 M Fe(OH)3 solution. What is the concentration of the H2CO3 solution?
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Ответ:
0.716
Explanation:
First, write the balanced equation:
3 H2CO3 + 2 Fe(OH)3 > Fe2(CO3)3 + 6 H2O
Second, go from the molarity of H2CO3 to liters of Fe(OH)3
(Pull mole ratio from balanced equation)
1.22/1L x 0.0880/1 x 3molH2CO3/2molFe(OH)3 x 1/0.225L
Use calculator, and you end up with 0.7157333
Round to 0.716
Ответ:
1s22s22p6: Ne
1s22s22p63s23p3 : P
1s22s22p63s23p64s1: K
1s22s22p63s23p64s23d8: Ni
1s22s22p63s23p64s23d104p65s24d3: Nb