Timbuktu was considered a MASSIVE trade center in Mali. That is how all of the foreign goods came into the kingdom. It also had education centers which was very important in Mali.
Answer:
The answer is
<h2>11.33 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
![density = \frac{mass}{volume} \\](https://tex.z-dn.net/?f=density%20%3D%20%20%5Cfrac%7Bmass%7D%7Bvolume%7D%20%20%5C%5C%20)
From the question
mass of metal = 34 g
volume of metal = final volume of water - initial volume of water
volume = 25.3 - 22.3 = 3.0 mL
The density is
![density = \frac{34}{3} \\ = 11.33333...](https://tex.z-dn.net/?f=density%20%3D%20%20%5Cfrac%7B34%7D%7B3%7D%20%20%5C%5C%20%20%3D%2011.33333...)
We have the final answer as
<h3>11.33 g/mL</h3>
Hope this helps you
Answer:
11
Explanation:
Moles of KOH = ![10^{-2}](https://tex.z-dn.net/?f=10%5E%7B-2%7D)
Volume of water = 10 liters
Concentration of KOH is given by
![[KOH]=\dfrac{10^{-2}}{10}\\\Rightarrow [KOH]=10^{-3}\ \text{M}](https://tex.z-dn.net/?f=%5BKOH%5D%3D%5Cdfrac%7B10%5E%7B-2%7D%7D%7B10%7D%5C%5C%5CRightarrow%20%5BKOH%5D%3D10%5E%7B-3%7D%5C%20%5Ctext%7BM%7D)
is strong base so we have the following relation
![[KOH]=[OH^{-}]=10^{-3}\ \text{M}](https://tex.z-dn.net/?f=%5BKOH%5D%3D%5BOH%5E%7B-%7D%5D%3D10%5E%7B-3%7D%5C%20%5Ctext%7BM%7D)
![pOH=-\log [OH^{-}]=-\log10^{-3}](https://tex.z-dn.net/?f=pOH%3D-%5Clog%20%5BOH%5E%7B-%7D%5D%3D-%5Clog10%5E%7B-3%7D)
![\Rightarrow pH=14-3=11](https://tex.z-dn.net/?f=%5CRightarrow%20pH%3D14-3%3D11)
So, pH of the solution is 11