How many protons and neutrons does the isotope Chromium - 58 have? For 14 points need answer before tomorrow

An average man is requires about 2.00mg of fiboflavin (vitamin B2) per day. Cheese contains 5.5μg of riboflavin per gram of chee

Mrac [35]

Answer:

0.8017 pounds

Explanation:

Considering,

1 μg = $10^{-6}\ g$

1 mg = $10^{-3}\ g$

Given that:

5.5 μg of the riboflavin is present in 1 g of cheese

Or,

$5.5\times 10^{-6}\ g$ of the riboflavin is present in 1 g of cheese

Requirement = 2.00 mg = $2\times 10^{-3}\ g$

So,

1 g of the riboflavin is present in $\frac {1}{5.5\times 10^{-6}}\ g$ of cheese

Thus,

$2\times 10^{-3}\ g$ of the riboflavin is present in $\frac {1}{5.5\times 10^{-6}}\times 2\times 10^{-3}\ g$ of cheese

Amount of cheese = 363.6364 g

Also,

1 g = $\frac {1}{453.592}\ pounds$

So,

Amount of cheese = $\frac {363.6364}{453.592}\ pounds=0.8017\ pounds$

3 0

2 years ago

What is the relationship between absorbance and transmittance of a sample in a spectrophotometer? Plz help!!

Arlecino [84]

Answer:

thanks for the pointthanks for the pointthanks for the point

Explanation:

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6 0

2 years ago

One of the greatest dangers in a tornado is from flying objects. A 15 pound piece of lumber can turn into a flying missile that

Anika [276]

Answer:

As the kinetic energy of an object increases, the force it can exert on another object decreases.

Explanation:

3 0

2 years ago

after learning about several of the body systems, John tells the class that the digestive system and respiratory system have one

Maru [420]

c is the answer to the question

8 0

3 years ago

Consider the three ligand field spectra corresponding to octahedral complexes A, B, and C, all formed from the same metal ion.

scoundrel [369]

Answer:

Ni^2+ is most likely

Ti^3+ is very unlikely

Explanation:

The Crystal Field Stabilization Energy almost always favors octahedral over tetrahedral in very many cases, but the degree of this favorability varies with the electronic configuration. In other words, for d1 there is only a small gap between the octahedral and tetrahedral lines, whereas at d3 and d8 is a very big gap. However, for d0, d5 high spin and d10, there is no crystal field stabilization energy difference between octahedral and tetrahedral. The ordering of favorability of octahedral over tetrahedral is:

d3, d8 > d4, d9> d2, d7 > d1, d6 > d0, d5, d10. This explains the answer choices above.

Ti^3+ being a d1 specie is least likely to exist in octahedral shape while Ni2+ a d8 specie is more likely to exist in octahedral shape.

8 0

3 years ago