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What is the molecular mass

A molecular compound is composed of 58.8% Xe, 7.2% O, and 34.0% F, by mass. If the molecular weight is 223 g/mol, what is the
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2. asked by chemistry
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I have to find the molecular formula for As2O3, to do so I have to divide its molecular mass by its empirical mass. I have
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2. asked by Mac
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7.25 g of iron were reacted with sulfur until the product reached a constant mass of 13.50 g. If the experimental molecular mass
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2. asked by joan
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7.25 g of iron were reacted with sulfur until the product reached a constant mass of 13.50 g. If the experimental molecular mass
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2. asked by joan
3. 490 views
A compound of B and H is found to have a mass percent composition of 81.1% Boron. Its empirical formula is B2H5. A mass
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2. asked by Nikela
3. 999 views
a sample of compound C,H,N and O with a mass of 0.6216 was found to contain 0.1735g C,0.01455g H,0.2024g N.Its molecular mass
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2. asked by bliss
3. 1,453 views
The relative rate of diffusion between two gases is 1.656. If the lighter gas is methane (molecular mass=16.05g/mol), what is
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2. asked by hh.
3. 568 views
Air is approximately 80% nitrogen and 20% oxygen (on a mole basis). If 6 g of hydrogen is added to a 22.4 liter maintained at 0
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2. asked by Jessica Lynn
3. 968 views
Molecular Mass by Freezing point Depression (Preliminary Lab)The following errors occurred when the above experiment was carried
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2. asked by chuchuchulu
3. 2,217 views
Two gases A and B having the same volume diffuse through a porous in 20 and 10 seconds respectively .The molecular mass of A is
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2. asked by Tanya
3. 654 views