Làm thế nào để tắt mỗi chất ra khỏi hỗn hợp gồm bột nhôm bột sắt và bột gỗ?
1 answer:
You might be interested in
Answer:
*
*
*
Explanation:
Hello,
In this case, for the mole fraction of methanol we use the formula:
Thus, we compute the moles of both water (molar mass 18 g/mol) and methanol (molar mass 32 g/mol):
Hence, mole fraction is:
Next, mass percent is:
And the molality, considering the mass of water in kg (0.185 kg):
Regards.