Answer :
- <u>Part A :</u> The given unbalanced redox reaction is,
Now we have to balance the given redox reaction in acidic medium by half reaction method.
1st half reaction :
2nd half reaction :
For net balanced reaction, 1st half reaction is multiplying by 8 and 2nd half reaction is multiplying by 5
The net balanced redox reaction is,
- <u>Part B :</u> The given unbalanced redox reaction is,
Now we have to balance the given redox reaction in basic medium by half reaction method.
1st half reaction :
2nd half reaction :
For net balanced reaction, 1st half reaction is multiplying by 2.
The net balanced redox reaction is,
The easiest way to approximate ph level is through the ph paper measurement system because using pH paper would be best for doing a quick measurement in the field. It does not essentially need to be calibrated or standardized and the papers make available an instant estimate.
<h3><u>Answer</u>;</h3>
Chlorine forms one covalent bond and oxygen forms two covalent bonds
<h3><u>Explanation</u>;</h3>
- Covalent bond is a type of bond the occur when non-metal atoms share electrons. Covalent atom may occur between two atoms in a molecule.
- Diatomic molecule is a molecule consisting of two atoms. Halogens such as chlorine exist as diatomic gases by forming covalent bonds.
- <em><u>Single covalent bond occurs when two atoms held together by sharing a pair of electrons, for example in diatomic molecules such as chlorine.</u></em>
- <em><u>Double covalent bond is a bond that involves two shared pairs of electrons for example in oxygen molecule.</u></em> Triple covalent bond on the other hand is a bond formed by sharing three pairs of electrons between atoms, like in the case of nitrogen molecule.
Answer:
1.81 g of Benzoic Acid
Solution:
The balance chemical equation is as follow,
C₇H₅O₂Na + HCl → C₇H₆O₂ + NaCl
According to equation,
144.11 g (1 mole) C₇H₅O₂Na produces = 122.12 g of C₇H₆O₂
So,
2.14 g of C₇H₅O₂Na will produce = X g of C₇H₆O₂
Solving for X,
X = (2.14 g × 122.12 g) ÷ 144.11 g
X = 1.81 g of C₇H₆O₂
A) Moles
When converting the volume of a gas to the mass of a gas, the first step is to convert volume to moles.