ex-formula"> X , Y and Z are the samples of water obtained from different sources. The types of salt dissolved in them are labelled in the picture. Now , Answer the following questions.
i. Identify the hardness of water that can be removed by boiling process.
ii. Which of them is soft water ?
iii. Write the chemical equation of the reaction that takes place when Z is treated with X , Y and Z.
~Random/Irrelevant answers will be reported!
i. Identify the hardness of water that can be removed by boiling process.
ii. Which of them is soft water ?
iii. Write the chemical equation of the reaction that takes place when Z is treated with X , Y and Z.
~Random/Irrelevant answers will be reported!
2 answers:
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Answer:
Dissolve 226 g of KCl in enough water to make 1.5 L of solution
Explanation:
1. Calculate the moles of KCl needed
2. Calculate the mass of KCl
3. Prepare the solution
- Measure out 224 g of KCl.
- Dissolve the KCl in a few hundred millilitres of distilled water.
- Add enough water to make 1.5 L of solution. Mix thoroughly to get a uniform solution.
Explanation:
Formula to calculate hybridization is as follows.
Hybridization =
where,
V = number of valence electrons present in central atom
N = number of monovalent atoms bonded to central atom
C = charge of cation
A = charge of anion
So, hybridization of is as follows.
Hybridization =
=
= 2
Hybridization of is sp. Therefore,
is a linear molecule. There will be only two electron groups through which Be is attached.
Similarly, hybridization of is calculated as follows.
Hybridization =
=
= 5
Therefore, hybridization of is
is also a linear molecule. Though there are three lone pair of electrons present on a xenon atom and it is further attached with fluorine atoms through two electron pairs. Hence, there are in total five electron groups.
Thus, we can conclude that out of the given options is the correct examples of linear molecules for five electron groups.