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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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How many grams of Na2SO4 are theoretically produced when excess NaCl reacts with 400 grams of H2SO4

Gnom [1K]

Answer:

335.35 grams

Explanation:

Convert grams of H2SO4 to moles and get 4.08 moles.

Using stoichiometry, the chemical equation tells us that for every mole of H2SO4, one mole of Na2SO4 is produced. This means that, theoretically, you should get 4.08 moles.

Convert moles to grams and get 335.34 g.

However, if you were to actually perform this reaction, you would get less than the theoretical value.

Hope this helps! <3

3 0

3 years ago

An organic chemist measures the temperature T of a solution in a reaction flask. Here is the result T = 17. degree C Convert T t

garik1379 [7]

Answer : The temperature in Kelvin is, 290 K

Explanation :

S.I : It is known as the international System of Units. It is defined as a scientific method to express the magnitude of the several basics units.

There are seven basic units in the system from which the other units are derived.

The seven base unit are, meter for length, kilogram for mass, second for time, ampere for current, kelvin for temperature, mole for amount of substance and candela for intensity.

The conversion used for the temperature from degree Celsius to Kelvin is:

$K=273.15+^oC$

where,

$K$ = temperature in Kelvin

$^oC$ = temperature in centigrade

As we are given the temperature in degree Celsius is, 17

Now we have to determine the temperature in Kelvin.

$K=273.15+^oC$

$K=273.15+(17^oC)$

$K=290.15K\approx 290K$

Therefore, the temperature in Kelvin is, 290 K

5 0

3 years ago

Calculate Rations. A transformer has ten turns of wire on the input side and 50 turns of wire on the output side. if the input v

Illusion [34]

Answer:

Output voltage = 600 V

Explanation:

Using the transformer equation which simply states that the ratio of the secondary to primary voltages in a transformer equals the ratio of the number of loops in their coils.

Number of input turns/Number of output turns = Voltage of input/voltage of output

10/50 = 120V/voltage of output

Voltage of output = 120 V/0.2

Voltage of output = 600 V

4 0

4 years ago

Which of the following is an interaction is responsible for the force of attraction between the particles in a salt crystal?

mojhsa [17]

Answer: option B) proton-electron.

The particles inside a salt crystal are ions. The electrostatic attraction between the positive ions are the negative ions is responsible for the crystal structure. In last stay, the protons are responsible for the positive charge and the electrons for the negative charge. Then you can say that the interaction proton-electron is responsible for the force of attraction between the particles in a salt crystal.

7 0

4 years ago

Of the groups given, which are the least chemically reactive?

AfilCa [17]

Answer:

Group 8A

Explanation:

This is because the elements in Group 8A is stable, what I mean is this elements have the maximum number of electrons in there last orbit so they dont need to form any compund with any other element in the periodic table.

HOPE THIS WILL HELP YOU❤️

7 0

2 years ago