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Gre4nikov [31]
3 years ago
12

A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is

Chemistry
1 answer:
Kamila [148]3 years ago
8 0
That's what I was thinking. I wasn't sure if we were precisely interested in finding the molecule's width as well (which I didn't know how to do but had a vague idea of how we might accomplish it). If this is just for unit conversions though, your answer seems sufficient. You just need to convert nanometers to millimeters.
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Cómo puedes medir un gas?
Dima020 [189]
El gas se puede medir por volumen en cm3 utilizando un instrumento conocido como eudiómetro.
4 0
2 years ago
Describe the chemical reaction based on the chemical equation below also whether the equation is balanced
Crank

Answer:

Its not balanced

4NH₃ + 7O₂ ⇒ 4NO + 6H₂O

3 0
3 years ago
According to the equation below, how many moles of PbO are required to generate 3.88×1023 nitrogen molecules?
saul85 [17]

Answer:

1.935 mole

Explanation:

We'll begin by calculating the number of mole present in 3.88x10^23 molecules of nitrogen(N2). This can be obtained as follow:

From Avogadro's hypothesis, 1 mole of any substance contains 6.02x10^23 molecules. Therefore 1 mole of N2 contains 6.02x10^23 molecules.

Now if 1 mole of N2 contains 6.02x10^23 molecules,

Then Xmol of N2 will contain 3.88x10^23 molecules i.e

Xmol of N2 = (3.88x10^23)/6.02x10^23

Xmol of N2 = 0.645 mole

Now, we can obtain the number of moles of PbO required to generate 3.88x10^23 molecules (i.e 0.645 mole) of N2. This is illustrated below:

The equation for the reaction is given below:

3PbO + 2NH3 → 3Pb + N2 + 3H2O

From the balanced equation above, 3 moles of PbO produced 1 mole of N2.

Therefore, Xmol of PbO will produce 0.645 mole of N2 i.e

Xmol of PbO = 3 x 0.645

Xmol of PbO = 1.935 mole.

From the calculations made above,

1.935 mole of PbO will produce 3.88x10^23 molecules of nitrogen (N2).

8 0
3 years ago
Should the United States continue to develop/use nuclear power? Why or why not?
Vlad [161]

Answer:

Yes

Explanation:

because they should

5 0
2 years ago
A solution contains 14 grams of KCl in 100. grams of water at 40°C. What is the minimum amount of KCl that must be added to make
pashok25 [27]

Answer:

1386g

Explanation:

Solubility of a solute is the ability of the solute to mix into a liquid (the solvent). It measures the highest amount of substance mixed into a liquid solvent while they are both at equal amounts.

if 14g dissolved in 100cm3

  the amount that will dissolve in 1000cm3 = 14 x 1000/ 100

                                                                      =1400g

To form a saturated solution, 1400 - 14 = 1386g must be added.

8 0
2 years ago
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