Answer:
Explanation:
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In this case, since the determination of empirical formulas requires the moles of the constituents, we first need to calculate the moles in the given grams of the listed elements:
Next, we divide each moles by the fewest moles, in this case, those of phosphorous, in order to determine their subscripts in the empirical formula:
Thus, we multiply these subscripts by 5 to get whole numbers:
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Answer: molecules of
and 11.06 moles of Flourine
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number of particles.
1 mole of contains= molecules of
Thus 5.53 moles of contains= molecules of
1 mole of contains= 2 moles of Flourine
5.53 moles of contains= moles of Flourine
Answer:
(b). All carbohydrates have the general formula
Explanation:
Carbohydrates, more commonly known as sugars, are made up of carbon, oxygen, and hydrogen atoms. As mono-saccharide is known as the smallest unit of a carbohydrate . Two monosaccharides make up a disaccharide, and many monosaccharides make up a polysaccharide. Disaccharides and polysaccharides can be hydrolyzed back into the individual monosaccharide units.
As we know that the carbohydrate is always represented as
,
where n is any number between three and eight.
Hence, the option (b) is incorrect.
1 atom Mg, 2 atoms O and 2 atoms H.
1 + 2 + 2 = 5, so correct answer is C