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emmainna [20.7K]
3 years ago
15

B. 239/94 Pu 4/2 He +​

Chemistry
1 answer:
dedylja [7]3 years ago
4 0

Answer:

im thinking  its 362x

Explanation:

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Below is the thermochemical equation for the combustion of octane.
Gnom [1K]

5mol produces -10.941KJ

4 mol let produces x KJ

Solve through proportion

  • 5/-10.941=4/x
  • 5x=-43.764
  • x=-43.764/5
  • x=8.756 KJ
8 0
1 year ago
What is the electron configuration for Ba​
babunello [35]

Full electron configuration of barium: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s2

8 0
3 years ago
3<br> 3) Write any 4 important of<br> 4 important of measurement <br> Science
kramer

Answer:

A measurement is the action of measuring something, or some amount of stuff. So it is important to measure certain things right, distance, time, and accuracy are all great things to measure. Measurements can also allow us to make desicions based on the outcome of the measurement

7 0
3 years ago
Consider four atoms from the second period: lithium, beryllium boron carbon and nitrogen which of these element has the lowest e
bearhunter [10]
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5 0
3 years ago
Read 2 more answers
What is the concentration of OH − and pOH in a 0.00066 M solution of Ba ( OH ) 2 at 25 ∘ C? Assume complete dissociation.
Allushta [10]

<u>Answer:</u> The hydroxide ion concentration and pOH of the solution is 1.32\times 10^{-3}M  and 2.88 respectively

<u>Explanation:</u>

We are given:

Concentration of barium hydroxide = 0.00066 M

The chemical equation for the dissociation of barium hydroxide follows:

Ba(OH)_2\rightarrow Ba^{2+}+2OH^-

1 mole of barium hydroxide produces 1 mole of barium ions and 2 moles of hydroxide ions

pOH is defined as the negative logarithm of hydroxide ion concentration present in the solution

To calculate pOH of the solution, we use the equation:

pOH=-\log[OH^-]

We are given:

[OH^-]=(2\times 0.00066)=1.32\times 10^{-3}M

Putting values in above equation, we get:

pOH=-\log(1.32\times 10^{-3})\\\\pOH=2.88

Hence, the hydroxide ion concentration and pOH of the solution is 1.32\times 10^{-3}M  and 2.88 respectively

3 0
3 years ago
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