Answer:
The molar concentration of
in the solution is
and Predicted molar concentration of
in the solution is
M
Explanation:
Given :
![pH = - log[H^{+}]\\](https://tex.z-dn.net/?f=pH%20%3D%20-%20log%5BH%5E%7B%2B%7D%5D%5C%5C)
= 4
Molar concentration of
in the solution is:
![[H^{+}]=10^{-pH}\\](https://tex.z-dn.net/?f=%5BH%5E%7B%2B%7D%5D%3D10%5E%7B-pH%7D%5C%5C)
![=10^{-4}M](https://tex.z-dn.net/?f=%3D10%5E%7B-4%7DM)
![[H^{+}][OH^{-}] = k_{w}](https://tex.z-dn.net/?f=%5BH%5E%7B%2B%7D%5D%5BOH%5E%7B-%7D%5D%20%3D%20k_%7Bw%7D)
![= 10^{-14}](https://tex.z-dn.net/?f=%3D%2010%5E%7B-14%7D)
Predicted molar concentration of
in the solution is:
![[OH^{-}] =\frac{[10^{-14}]}{[H^{+}]}](https://tex.z-dn.net/?f=%5BOH%5E%7B-%7D%5D%20%3D%5Cfrac%7B%5B10%5E%7B-14%7D%5D%7D%7B%5BH%5E%7B%2B%7D%5D%7D)
= ![\frac{10^{-14}}{10^{-4}}](https://tex.z-dn.net/?f=%5Cfrac%7B10%5E%7B-14%7D%7D%7B10%5E%7B-4%7D%7D)
=
M
The statements that are associated with cell theories are
A - Cells are the basic units of structure in living things.
B - Cells are the basic units of function in living things.
C - Cells come from pre-existing cells.
<h3>Definition of cell</h3>
The cell was defined as the basic unit of life - both structural and functional as all living matter is made up of cells. And these cells arise from living cells and not from non-living matter.
For more information on cell, visit
brainly.com/question/3717876
The correct answer is B. Ordovician period
Explanation:
Plants are mainly multicellular organism that depends mainly on photosynthesis to obtain energy, this includes a wide variety of species such as grass, flowering plants, trees, shrubs, etc. Additionally, plants are considered as one f the two major divisions or kingdoms along with animals. In terms of history, it has been determined first land plants appear during the mid-Ordovician period around 470 million ago, although organisms that were the origin of land plants developed in water in previous periods, also by the Devonian period a wide variety of plants have emerged with features that are still part of plants nowadays. Therefore, plant life first appeared on land during the Ordovician period.
Answer:
Independent
Explanation:
an independent factor is anything in an experiment that is changed. I hope this is what you were looking for.
Is there any answer choices to choose from??