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mafiozo [28]
3 years ago
15

B vitamins are a group of water soluble compounds that are important in cell metabolism. Each one has a different chemical struc

ture. Please rank, in order of increasing molar mass, the following B vitamins listed below.
1. Vitamin B7,
biotin
C_10H_16N_ZO_3S
2. Vitamin B6,
pyridoxine
C_8H_11_NO_3
3. Vitamin B5
pantothenic acid
C_9H_17_NO_5
4. Vitamin B2, riboflavin
C_17H_20N_4O_6
5. Vitamin B1, thiamine
C_12_H_17N_4OS
Chemistry
1 answer:
Tom [10]3 years ago
7 0

Molar mass of vitamin B1, C12H17N4OS = 265.34 g/ mol

Molar mass of vitamin B2, C17H20N4O6 = 376.37 g/ mol

Molar mass of vitamin B5, C9H17NO5 = 219.24 g/ mol

Molar mass of vitamin B6, C8H11NO3 = 169.18 g/ mol

Molar mass of vitamin B7, C10H16N2O3S = 244.31 g/ mol

Now,

Order of increasing molar mass = B6 < B5 < B7 < B1 < B2

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2 years ago
What happens when potassium metal react with nitric acid
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What is defined as the ability to do work or to cause changes in matter?
abruzzese [7]

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energy

Explanation:

4 0
2 years ago
Night visin cameras are sensitive to energies around 2.21 x 10-19 J. What wavelength of electromagnetic radiation do they use?
defon

Answer:

8.99×10^-7m

Explanation:

The wavelength can be calculated using the expression below

E=hcλ

Where E= energy= 2.21 x 10^-19 J.

C= speed of light= 3x10^8 m/s

h= planks constant= 6.626 × 10^-34 m2 kg / s

E=hcλ

λ= E/(hc)

Substitute for the values

λ=( 2.21 x 10^-19 )/(6.626 × 10^-34 × 3x10^8 )

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6 0
3 years ago
Brenda rode a skateboard 95 meters west. It took her 20 seconds. What was
Artemon [7]

Answer:

D. 4.75 m/s west

Explanation:

You can immediately get the answer once you know the formula for<em> velocity.</em>

  • The formula for velocity is: Velocity (V) = \frac{distance (d)}{time (t)}

The distance is 95 meters while the time is 20 seconds. All you have to do is to divide <u>95 meters by 20 seconds</u>.

Let's solve:

  • V = \frac{d}{t}
  • V = \frac{95 meters}{20 seconds}
  • V = 4.75 meters per second

Since Brenda is going west with her her skateboard, then you have to add <em>west </em>as her direction.

Brenda's velocity is 4.75 m/s west.

5 0
3 years ago
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