H_2O =: w(H) = 11,11%, w(O) = 88,89%
Ca(OH)_2: w(Ca) = 54,06%, w(O) = 43,24%, w(H) = 2,7%
Объяснение:
H_2O
w(H) = m(H) / m(H_2O) = 2 / 18 = 1/9 или 11,11%
w(O) = 100% - w(H) = 100% - 11,11% = 88,89% или 8/9
Ca(OH)_2
w(O) = m(O) / m(Ca(OH)_2) = 32 / 74 = 16/37 или 43,24%
w(H) = m(H) / m(Ca(OH)_2) = 2 / 74 = 1/37 или 2,7%
w(Ca) = 100% - w(O) - w(H) = 100% - 43,24% - 2,7% = 54,06% или 20/37
H_2O =: w(H) = 11,11%, w(O) = 88,89%
Ca(OH)_2: w(Ca) = 54,06%, w(O) = 43,24%, w(H) = 2,7%
Объяснение:
H_2O
w(H) = m(H) / m(H_2O) = 2 / 18 = 1/9 или 11,11%
w(O) = 100% - w(H) = 100% - 11,11% = 88,89% или 8/9
Ca(OH)_2
w(O) = m(O) / m(Ca(OH)_2) = 32 / 74 = 16/37 или 43,24%
w(H) = m(H) / m(Ca(OH)_2) = 2 / 74 = 1/37 или 2,7%
w(Ca) = 100% - w(O) - w(H) = 100% - 43,24% - 2,7% = 54,06% или 20/37