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Ganezh [65]
3 years ago
6

What do you think of my lab report so far?

Chemistry
2 answers:
8090 [49]3 years ago
5 0
Fix ur transition, it sounds choppy

bekas [8.4K]3 years ago
5 0
I can only see one page. If you are doing this under Perdue Owl structure, then you will need a cover page as well as numbers on the page and a reference page at the end. Some professors also want a content page
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Which of the following has the most energy?
iren2701 [21]
Ultraviolet rays has the most energy
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3 years ago
Calculate the unit cell edge length for an 85 wt% fe-15 wt% v alloy. All of the vanadium is in solid solution, and, at room temp
Lady bird [3.3K]

Answer is 0.289nm.

Explanation: The wt % of Fe and wt % of V is given for a Fe-V alloy.

wt % of Fe in Fe-V alloy = 85%

wt % of V in Fe-V alloy = 15%

We need to calculate edge length of the unit cell having bcc structure.

Using density formula,

\rho_{ave}=\frac{Z\times M_{ave}}{a^3\times N_A}

For calculating edge length,

a=(\frac{Z\times M_{ave}}{\rho_{ave}\times N_A})^{1/3}

For calculating M_{ave}, we use the formula

M_{ave}= \frac{100}{\frac{(wt\%)_{Fe}}{M_{Fe}}+\frac{(wt\%)_{V}}{M_V}}

Similarly for calculating (\rho)_{ave}, we use the formula

\rho_{ave}= \frac{100}{\frac{(wt\%)_{Fe}}{\rho_{Fe}}+\frac{(wt\%)_{V}}{\rho_V}}

From the periodic table, masses of the two elements can be written

M_{Fe}= 55.85g/mol

M_{V}=50.941g/mol

Specific density of both the elements are

(\rho)_{Fe}=7.874g/cm^3\\(\rho)_{V}=6.10g/cm^3

Putting  M_{ave} and \rho_{ave} formula's in edge length formula, we get

a=\left [\frac{Z\left (\frac{100}{\frac{(wt\%)_{Fe}}{M_{Fe}}+\frac{(wt\%)_{Fe}}{M_{Fe}}}  \right )}{N_A\left (\frac{100}{\frac{(wt\%)_V}{\rho_V}+\frac{(wt\%)_V}{\rho_V}}  \right )}  \right ]^{1/3}

a=\left [\frac{2atoms/\text{unit cell}\left (\frac{100}{\frac{85\%}{55.85g/mol}+\frac{15\%}{50.941g/mol}}  \right )}{(6.023\times10^{23}atoms/mol)\left (\frac{100}{\frac{85\%}{7.874g/cm^3}+\frac{15\%}{6.10g/cm^3}}  \right )}  \right ]^{1/3}

By calculating, we get

a=2.89\times10^{-8}cm=0.289nm

7 0
3 years ago
What causes a sharp increase in potential energy when two
Pachacha [2.7K]
The answer is c electrostatic repulsion between nuclei
4 0
3 years ago
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The Best Answer Will Be Rated Brainliest!
statuscvo [17]
The answer is flourine

flourine some what sounds like flow so

flourine is a flowing element
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3 years ago
How many carbon atoms are in the following molecule of isobutane? (ch3)3ch
STALIN [3.7K]
Number of Carbon atoms = 3*1 + 1 = 3 + 1 = 4

In short, Your Answer would be Option B

Hope this helps!
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2 years ago
Read 2 more answers
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