Soru
Calculate the molar mass of KAl(SO_(4))_(2)cdot 12H_(2)O a. 560g/mole b. 320g/mole C. 410.76g/mole d. 474.38g/mole e. 280g/mole Clear my choice
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Usta · 5 yıl öğretmeni
Uzman doğrulaması
Cevap
To calculate the molar mass of
, we need to find the atomic masses of each element in the compound and multiply them by their respective subscripts.The atomic masses are:- Potassium (K): 39.10 g/mol- Aluminum (Al): 26.98 g/mol- Sulfur (S): 32.07 g/mol- Oxygen (O): 16.00 g/mol- Hydrogen (H): 1.01 g/molNow, let's calculate the molar mass of each part of the compound:-
: - Potassium (K):
g/mol - Aluminum (Al):
g/mol - Sulfur (S):
g/mol - Oxygen (O):
g/mol - Total:
g/mol-
: - Hydrogen (H):
g/mol - Oxygen (O):
g/mol - Total:
g/molFinally, add the molar masses of both parts:
g/molTherefore, the correct answer is:d.