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4 years ago

Explain the basic principles involved in X-ray crystallography. Include Bragg’s law in your explanation.

Chemistry

1 answer:

Artist 52 [7]4 years ago

4 0

Answer:

Bragg's law is considered the case of diffraction that gives coherent and incoherent angles when the ray is scattered from the crystal lattice.

Explanation:

Bragg's law is considered the case of diffraction that gives coherent and incoherent angles when the ray is scattered from the crystal lattice.

The Bragg's law is used to determine the crystal structure by explaining the scattering process between the x-ray and crystal surface.

Bagg's law stated that when incident ray incident on the surface of crystal its scattering angle will be the same as incident angle when path difference is equal to the wavelength of ray. This leads to constructive interference.

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During all chemical reactions, mass, energy, and charge are

choli [55]

Answer:

The correct answer is option 2.

Explanation:

Law of conservation of Mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that in a balanced chemical reaction total mass on the reactant side must be equal to the total mass on the product side.

Law of conservation of energy states that energy can neither be created nor be destroyed but it can only be transformed from one form to another form.The total energy of an remains constant in a chemical reaction,.

For example:

$2H^++S^{2-}\rightarrow H_2S$

Mass of reactants = $2\times 1 g/mol + 1\times 32 g/mol = 34 g/mol$

Mass of products = $(2\times 1 g/mol+1\times 32 g/mol)=34 g/mol$

Charge on reactant side = Charge on product side

$2\times (+1) +(-2)=0$

$0=0$

7 0

3 years ago

On the calendar, the full moon is shown happening on the eleventh of the month. What moon would you see around the date shown wi

Elan Coil [88]

Answer: waning gibbous

Explanation:

Your welcome

7 0

3 years ago

Now we need to find the amount of NF3 that can be formed by the complete reactions of each of the reactants. If all of the N2 wa

Alex777 [14]

The question is incomplete, the complete question is:

Nitrogen and fluorine react to form nitrogen fluoride according to the chemical equation:

$N_2(g)+3F_2(g)\rightarrow 2NF_3(g)$

A sample contains 19.3 g of $N_2$ is reacted with 19.3 g of $F_2$ . Now we need to find the amount of $NF_3$ that can be formed by the complete reactions of each of the reactants.

If all of the $N_2$ was used up in the reaction, how many moles of $NF_3$ would be produced?

<u>Answer:</u> 1.378 moles of $NF_3$ are produced in the reaction.

<u>Explanation:</u>

The number of moles is defined as the ratio of the mass of a substance to its molar mass.

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ......(1)

Limiting reagent is defined as the reagent which is completely consumed in the reaction and limits the formation of the product.

Excess reagent is defined as the reagent which is left behind after the completion of the reaction.

In the given chemical reaction, $N_2$ is considered as a limiting reagent because it limits the formation of the product and it was completely consumed in the reaction.

We are given:

Mass of $N_2$ = 19.3 g

Molar mass of $N_2$ = 28.02 g/mol

Putting values in equation 1:

$\text{Moles of }N_2=\frac{19.3g}{28.02g/mol}=0.689mol$

For the given chemical reaction:

$N_2(g)+3F_2(g)\rightarrow 2NF_3(g)$

By the stoichiometry of the reaction:

1 mole of $N_2$ produces 2 moles of $NF_3$

So, 0.689 moles of $N_2$ will produce = $\frac{2}{1}\times 0.689=1.378mol$ of $NF_3$

Hence, 1.378 moles of $NF_3$ are produced in the reaction.

8 0

3 years ago

What type of reaction would a titration be useful for?

arlik [135]

Neutralization reaction.

4 0

3 years ago

Read 2 more answers

Radon-219 decays to radon-218 by releasing... a. a positron b.a muon O c. a neutron O d. an electron O e. a proton

MrRa [10]

Answer: Option (c) is the correct answer.

Explanation:

A positron is denoted as $^{0}_{+1}e$ , a neutron is denoted as $^{1}_{0}n$ , an electron is denoted as $^{0}_{-1}e$ , and a proton is denoted as $^{1}_{1}p$ .

Therefore, when $^{219}Rn$ will decay into $^{218}Rn$ this means there occurs decrease in its mass number. Hence, it means a neutron will be releasing during this reaction.

The reaction will be as follows.

$^{219}Rn \rightarrow ^{218}Rn + ^{1}_{0}n$

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3 years ago