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2 years ago

Alanine is shown as a fischer projection.

Chemistry

1 answer:

AVprozaik [17]2 years ago

4 0

The compound alanine has an S configuration based on the Fisher projection of the compound.

<h3>What is Fisher projection?</h3>

We know that the stereochemistry of a compound is very important in the study of organic chemistry. When we talk about the stereochemistry, we are talking about the way and manner in which the atoms that are found in the compound are arranged.

The configuration of the compound can be obtained when we look at the image of the fisher projection formula of the compound. There are two main configurations that the compound could have have. These are the R and S configurations.

The configuration would be assigned to the compound on the basis of the relative positions of the priority groups in the compound. We can see that in the fisher projection formula of alanine, the priority groups are assigned from left to right thus it has an S configuration.

Learn more about Fisher projection:brainly.com/question/28789459

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r-ruslan [8.4K]

To solve this question, let us first calculate how much all the nucleons will weigh when they are apart, that is:
Mass of 25 protons = 25(1.0073) = 25.1825 amu 

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So, total mass of nucleons = 30.261+25.1825 = 55.4435 amu

Now we subtract the mass of nucleons and mass of the Mn nucleus:
55.4435 - 54.938 = 0.5055 amu

This difference in mass is what we call as the mass defect of a nucleus. Now we calculate the binding energy using the formula:

E=mc^2 

But first convert mass defect in units of SI (kg):
Δm = 0.5055 amu = (0.5055) / (6.022x10^26)
Δm = 8.3942x10^-28 kg

Now applying the formula,
E=Δm c^2
E=(8.3942x10^-28)(3x10^8)^2
E=7.55x10^-11 J

Convert energy from Joules to mev then divide by total number of nucleons (55):

E = 7.55x10^-11 J * (6.242x10^12 mev / 1 J) / 55 nucleons

E = 8.57 mev / nucleon

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Inessa [10]

Answer:

64,433.6 Joules

Explanation:

We are given;

Volume of water as 220 mL
Initial temperature as 30°C
Final temperature as 100°C
Specific heat capacity of water as 4.184 J/g°C

We are required to calculate the amount of heat required to raise the temperature.

We know that amount of heat is calculated by;

Q = mcΔT , where m is the mass, c is the specific heat, ΔT is the change in temperature.

Density of water is 1 g/mL

Thus, mass of water is 220 g

ΔT = 100°C - 30°C

= 70°C

Therefore;

Amount of heat, Q = 220g × 4.184 J/g°C × 70°C

= 64,433.6 Joules

Thus, the amount of heat required to raise the temperature of water is 64,433.6 Joules

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Answer:

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