<span>Bleach and ammonia can be used to make cl2. Bleach is commercially available and so people should be very careful during these experiments or even when mixing things in the household.</span>
Answer:
I would say the living for many plants and animals
Answer:-
0.3 moles
Explanation:-
According to the question,
Volume of nitrogen gas V = 6.8 litres.
Pressure of nitrogen gas P = 100 kPa.
Temperature of nitrogen gas T = 273 K.
We know the value of universal gas constant R = 8.314 litres kPa K−1 mol−1
Using the relation
PV = nRT
We have Number of moles of nitrogen gas n = P V / RT
= 100 kPa x 6.8 litres / ( 8.314 litres kPa K−1 mol−1 x 273 K)
= 0.3 mol
Thus there are 0.3 moles of nitrogen gas in 6.8 liters at standard temperature and pressure (273 K and 100 kPa)
Complete Question
Calculate the pH during the titration of 20.00 mL of 0.1000 M trimethylamine, (CH3)3N(aq), with 0.2000 M HClO4(aq) after 9.48 mL of the acid have been added.Kb of trimethylamine = 6.5 x 10-5.
Answer:
The pH is
Explanation:
From the question we are told that
The volume of trimethylamine, (CH3)3N(aq) is 
The concentration of trimethylamine is
The volume of HClO4(aq) is 
The concentration of HClO4(aq) is 
The Kb value is 
Generally the the pOH of this reaction is mathematically represented as
![pOH = pK_b + log [\frac{N_h}{N_b} ]](https://tex.z-dn.net/?f=pOH%20%20%3D%20%20pK_b%20%2B%20log%20%5B%5Cfrac%7BN_h%7D%7BN_b%7D%20%5D)
Here
is the number of moles of acid which is evaluated as

=>
=> 
Here
is the number of moles of acid which is evaluated as

=>
=> 
So
![pOH = -log(K_b) + log [\frac{N_h}{N_b} ]](https://tex.z-dn.net/?f=pOH%20%20%3D%20%20-log%28K_b%29%20%2B%20log%20%5B%5Cfrac%7BN_h%7D%7BN_b%7D%20%5D)
![pOH = -log(6.5*10^{-5}) + log [\frac{1.896}{2} ]](https://tex.z-dn.net/?f=pOH%20%20%3D%20%20-log%286.5%2A10%5E%7B-5%7D%29%20%2B%20log%20%5B%5Cfrac%7B1.896%7D%7B2%7D%20%5D)
=> 
Generally the pH is mathematically represented as

=>
=>
Answer:
63.546
Explanation: Molecular weight of copper or mol The molecular formula for copper is Cu, The SI base unit for amount of substance is the mole