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3 years ago

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

Chemistry

1 answer:

Firdavs [7]3 years ago

5 0

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

Explanation:

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Analysing the Question:

We are given the balanced equation:

C₆H₁₂O₆ + 6O₂→ 6CO₂ + 6H₂O

from this equation, we can say that: for every 1 mole of Glucose, we need 6 moles of Oxygen

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3 years ago

A blood sample of 4.01 milliliters is collected from a patient to be analyzed for a platelet count. Human blood should have arou

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Given :

Human blood should have around 1.04 kg/L platelets.

A blood sample of 4.01 milliliters is collected from a patient to be analyzed for a platelet count.

To Find :

The expected mass in grams of platelets in the blood sample.

Solution :

1 L of human blood contains 1.04 kg of platelets.

So, amount of platelets is 1 ml blood is :

$=\dfrac{1.04}{1000}\ kg\\\\= \dfrac{1.04\times 1000}{1000}\ gram\\\\= 1.04 \ gram$

Mass of platelets in 4.01 ml blood is :

$m = 1.04\times 4.01\ gram\\\\m = 4.1704\ gram$

Hence, this is the required solution.

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