How many atoms of hydrogen are in vitamin B
1 answer:
There are 88 atoms of Hydrogen in vitamin B (B12)
Why?
If we need to know how many atoms of Hydrogen are in vitamin B (most common is B12) we need to look for its molecular formula.
We have that the molecular formula of vitamin B (B12) is the following:
Where the numbers at the right of each component represent the number of atoms, we can see that there are 88 atoms of Hydrogen in vitamin B (B12).
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Answer:
Mass of the climber = 69.38 kg
Explanation:
Change in length
Load, P = m x 9.81 = 9.81m
Young's modulus, Y = 0.37 x 10¹⁰ N/m²
Area
Length, L = 15 m
ΔL = 5.1 cm = 0.051 m
Substituting
Mass of the climber = 69.38 kg
The glassware with the highest degree of accuracy is 250 mL beaker.
<h3>What is accuracy?</h3>When in an experiment, a value is measured 5 times, then if the values measured are same for most of the time or like three times out of five, it said to be accurate. The phenomenon is accuracy.
Accuracy compares the experimental value to the theoretical value.
Accepted density of water = 0.99 g/mL
1. 10 mL cylinder
Mass of water = 6.76 g
Volume of water = 6.8 mL
Density = mass /Volume
density = 6.76/6.8 = 0.99412 g/mL
Percentage error = [Observed value - Accepted value/ Accepted value ] x 100
% error = [0.99412 - 0.99 / 0.99 ] x 100
% error = 0.416 %
2. 50 mL cylinder
Mass of water = 24 g
Volume of water = 24.2 mL
density = 24/24.2 = 0.9917 g/mL
Percentage error = [Observed value - Accepted value/ Accepted value ] x 100
% error = [0.9917 - 0.99 / 0.99 ] x 100
% error = 0.172 %
3. 25 mL cylinder
Mass of water = 17 g
Volume of water = 17.1 mL
density = 17/17.1 = 0.99415 g/mL
Percentage error = [Observed value - Accepted value/ Accepted value ] x 100
% error = [0.99415 - 0.99 / 0.99 ] x 100
% error = 0.419 %
4. 250 mL beaker
Mass of water = 35 g
Volume of water = 35.3 mL
density = 35/35.3 = 0.9915 g/mL
Percentage error = [Observed value - Accepted value/ Accepted value ] x 100
% error = [0.9915 - 0.99 / 0.99 ] x 100
% error = 0.152 %
Lesser the percentage error, higher is the accuracy.
Thus, 250 mL beaker has the highest degree of accuracy.
Learn more about accuracy.
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