Question

W( Si)=46,6% w(O)=?%​

Answer 1

Ответ:

скорее всего 54,4

Объяснение:

Answer 2

Если только Si и О, то получается
w(O)=100%-46,6%=53,4%

Answer 3

It looks like you're trying to determine the weight percentage of oxygen (O) in a compound where the weight percentage of silicon (Si) is given as 46.6%. To find the weight percentage of oxygen, you need to know the chemical formula of the compound.

Without knowing the chemical formula, it's impossible to calculate the exact weight percentage of oxygen. However, I can provide a general approach if you have more information about the compound:

1. Determine the molar mass of silicon (Si) and oxygen (O).

The molar mass of Si is approximately 28.0855 g/mol, and the molar mass of O is approximately 15.9994 g/mol.

2. Find the ratio of the molar masses.

To find the molar ratio of Si to O, you'll need to know the molecular formula of the compound. For example, if the compound is SiO2 (silicon dioxide), the ratio of Si to O is 1:2.

3. Calculate the weight percentage of oxygen (O).

Once you have the molar ratio of Si to O, you can calculate the weight percentage of oxygen using the given weight percentage of silicon (Si) and the molar masses:

Weight Percentage of O = (Molar Mass of O / (Molar Mass of Si + Molar Mass of O)) * 100

Substitute the appropriate values based on the compound's formula and the molar ratio you determined in step 2.

If you can provide the chemical formula of the compound you're interested in, I can give you a more specific calculation.