"2,883 million kilometers" is the distance.
<u>Answer:</u> Option B
<u>Explanation:</u>
The radius of orbital of Uranus is = 19.22 AU
The unit of length or the distance from Earth to the Sun which is equal to approximately 150 million kilometers is known as "astronomical unit".
1 AU is about = 150 million kilometers
So the distance can be calculated by multiplying radius of orbital from one astronomical units:
150,000,000 x 19.22 = 2,883,000,000 or 2,883 million km.
The answer can also be in scientific notation form as follows:
19.22 AU = 19.22 × 1.5 × 10^8 km = 2883 × 10^6 Km.
The correct answer is C) Overpopulation of species.
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Answer:
Hey there!
In a covalent bond, both atoms share their electrons.
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Answer:
pH = 4.95
Explanation:
<em>The buffer was created using 4.0082g sodium acetate, mixed with 10.0 mL of 3.0 M acetic acid and 90 mL of deionized water.</em>
<em />
Using H-H equation for acetic buffer:
pH = pKa + log [Acetate] / [Acetic acid]
<em>Where pH is the pH of the buffer</em>
<em>pKa = -log Ka = 4.74</em>
<em>[] Are molar concentration of each specie -The volume of the solution is 100mL = 0.1L-:</em>
[Sodium acetate] = 4.0082g * (1mol / 82.03g) = 0.04886 moles / 0.1L
= 0.4886M
[Acetic acid] = 3.0M * (10mL / 100mL) = 0.300M
pH = 4.74 + log [0.4886M] / [0.300M] =
<h3>pH = 4.95</h3>
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In fractional crystallization, what makes this disadvantageous is that multiple runs are needed in the process. This is to purify the mixture adequately but this still does not reach that 100% purity. In addition to the disadvantage of this, some of the mixture is lost during the process. This is because of so many steps being done. Hope this helps.