Well you could observe a color change or even a change in smell
<u>Answer:</u> The concentration of KOH solution is 1.215 M
<u>Explanation:</u>
For the given chemical equation:
![2KOH(aq.)+H_2SO_4(aq.)\rightarrow K_2SO_4(aq.)+2H_2O(l)](https://tex.z-dn.net/?f=2KOH%28aq.%29%2BH_2SO_4%28aq.%29%5Crightarrow%20K_2SO_4%28aq.%29%2B2H_2O%28l%29)
To calculate the concentration of base, we use the equation given by neutralization reaction:
![n_1M_1V_1=n_2M_2V_2](https://tex.z-dn.net/?f=n_1M_1V_1%3Dn_2M_2V_2)
where,
are the n-factor, molarity and volume of acid which is ![H_2SO_4](https://tex.z-dn.net/?f=H_2SO_4)
are the n-factor, molarity and volume of base which is KOH.
We are given:
![n_1=2\\M_1=1.50M\\V_1=16.2mL\\n_2=1\\M_2=?M\\V_2=40.0mL](https://tex.z-dn.net/?f=n_1%3D2%5C%5CM_1%3D1.50M%5C%5CV_1%3D16.2mL%5C%5Cn_2%3D1%5C%5CM_2%3D%3FM%5C%5CV_2%3D40.0mL)
Putting values in above equation, we get:
![2\times 1.50\times 16.2=1\times M_2\times 40.0\\\\M_2=\frac{2\times 1.50\times 16.2}{1\times 40.00}=1.215M](https://tex.z-dn.net/?f=2%5Ctimes%201.50%5Ctimes%2016.2%3D1%5Ctimes%20M_2%5Ctimes%2040.0%5C%5C%5C%5CM_2%3D%5Cfrac%7B2%5Ctimes%201.50%5Ctimes%2016.2%7D%7B1%5Ctimes%2040.00%7D%3D1.215M)
Hence, the concentration of KOH solution is 1.215 M
Answer:
Density is a physical property that is determined by dividing the mass of a given amount of a substance by its volume.
Explanation:
My name is Oluwashola david am from Nigeria. I live in ekiti state and I study at technical college as new candidate. Our government are really trying constructing new road, direct water even employing the youths