1000 to the power 4 not so good at math but
Answer:
3.4321229*10^23 molecules.
Explanation:
1 mole of CBr4 contains 6.0221409*10^23 molecules (Avogadro's Number).
The molar mass of this compound is 12.011 + 4(79.904)
= 331.627 g.
So the answer is (189/ 331.627) * 6.0221409*10^23
= 3.4321229*10^23 molecules.
Energy flows into an ecosystem in the form of light and exits in the form of heat
<span>A bond between two atoms in which the shared electron or electrons are equally likely to be found near each atom is called a non Polar Covalent Bond.
Explanation:
As we know atoms react in order to gain stability. Now, the bonding is done by several ways. Among these ways one is the mutual sharing of electrons between two atoms. Neither one completely accepts nor donate the electron instead they share it equally. If this sharing is purely equal then the bond formed is non polar in nature (like bonds between similar atoms), on the other hand if this sharing is not equal then one atom will get partial positive (less electron density) and other will get partial negative (more electron density) charge like in HCl.</span>
pH value of a 0. 011 m naf solution is 8.57.
Solution
This problem uses the relationship between Kb and the dissociation constants which is expressed as Kw = KaKb. Calculations are as follows:
Kb = KaKb
1.00 x 10^-14 = 7.2 x 10^-4(x)
x = 1.39 x 10^-11
We now need to calculate the [OH¯] using the Kb expression:
1.39 x 10^-11 = x^2 / (0.30 - x)
The denominator can be neglected. Thus, x is 3.73 x 10^-6.
pOH = -log 3.73 x 10^-6 = 5.43
pH = 14-5.43 = 8.57
To learn more ph of naf solution refer here:
brainly.com/question/1411794
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