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A certain protein was found to contain 0.214% cobalt by mass. Determine the minimum molecular mass of the protein.

User Okkko
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2 Answers

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24 votes

Final answer:

To determine the minimum molecular mass of the protein, we can use the given concentration of cobalt in the protein. By setting up a proportion and solving for x, we find that the minimum molecular mass of the protein is 10,000 g/mol.

Step-by-step explanation:

To determine the minimum molecular mass of the protein, we need to consider the concentration of cobalt in the protein. Since the protein contains 0.214% cobalt by mass, we can assume that 0.214g of cobalt is present in 100g of the protein. Using this information, we can set up a proportion to find the minimum molecular mass of the protein:

0.214g cobalt / 100g protein = x g cobalt / molecular mass of protein

Solving for x, we find that x = 0.214g cobalt * (molecular mass of protein) / 100g protein. Therefore, the minimum molecular mass of the protein is 100 * (0.214g cobalt / 0.214%) = 100 * (0.214g cobalt / 0.00214g protein) = 10,000 g/mol.

User Kirill Polishchuk
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15 votes
15 votes

Answer:

That's an interesting question to ask as minimum molecular mass is the important thing

As given inn the data the manganese present is equal to 0.818. That's mean hundred gram of protein will contain = 0.412 g of manganese

and we know that molar mass of manganese is equal to 54.938 u

so we will calculate that in 100 g we will have the 0.818/54.938 moles of manganese which will be equal to 0.0149 g moles of manganese.

and in totall 100 gram of protein

1mole= 100/ 0.0149 = 6711 g/mol of protein minimum molecular mass

Step-by-step explanation:

User Bryant Luk
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