Infrared radiation can be detected by <span>D. night-vision goggles.</span>
Answer: The value of the equilibrium constant Kc for this reaction is 0.088
Explanation:
where,
x = given mass
M = molar mass
= volume of solution in L
Equilibrium concentration of 
= 
Equilibrium concentration of 
= 
Equilibrium concentration of 
= 
The given balanced equilibrium reaction is,
The expression for equilibrium constant for this reaction will be,
![K_c=\frac{[CaO]\times [CO_2]}{[CaCO_3]}](https://tex.z-dn.net/?f=K_c%3D%5Cfrac%7B%5BCaO%5D%5Ctimes%20%5BCO_2%5D%7D%7B%5BCaCO_3%5D%7D)
Now put all the given values in this expression, we get :
Atomic mass of magnesium = (23.99 x 78.99%) + (24.99 x 10.00%) + (25.98 x 11.01%)
= 24.31 g/mol
NaOH is hygroscopic
Explanation:
- A standard solution is a solution of known molarity or concentration.
- Standard solutions are used in determining the stoichiometric amount of desired species in an experiment.
- A solution of NaOH is not a standard solution because NaOH is hygroscopic in nature.
- By this, NaOH absorbs moisture from the atmosphere in considerable amount.
- This implies that one must find an air free environment to store and use the compound and accurately quantify it.
- This is why a solution of NaOH is standardize with a primary standard.
Learn more:
Titration brainly.com/question/4306497
#learnwithBrainly
