Answer:
Explanation:
Na reacts with all OH groups to produce hydrogen.
The reaction with cyclobutanol is shown below.
The reaction with butanoic acid is
Both compounds release bubbles of hydrogen, so you can't use sodium to distinguish between them.
Work will be done only when the force is applied in the direction where the object moves. Else, there is no work done inspite of applying force.
<u>Explanation:</u>
According to the standard definition of work, it's simply the product of force applied on the object to the distance it travels due to the force. But, the fact lies that work depends on the direction of the force applied on the object.
The more reliable definition of work done is when the force is applied in the direction of motion of the object with which there should be a change in the kinetic energy of an object.
You can simply think of the wall which is standing straight. If you try to apply force by your hands on the wall, you are actually working, but the agony is that there is not work done technically as there is no movement in the direction of the force applied.
A chemist dilutes a 1.0 ml sample of 2.0M KNO₃ by adding water to it. If the concentration of the solution that is obtained is 0.0080 m, then its volume is 250mL.
<h3>How do we calculate volume?</h3>
Volume for the given equation will be calculated by using the below equation as:
M₁V₁ = M₂V₂, where
M₁ = molarity of KNO₃ = 2M
V₁ = volume of KNO₃ = 1mL
M₂ = molarity of final solution = 0.0080M
V₂ = volume of final solution = ?
On putting these values on the above equation, we get
V₂ = (2)(1) / (0.0080) = 250mL
Hence option (2) is correct.
To know more about molarity, visit the below link:
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<span>Ionic compounds form crystal lattices, not molecules. The term formula unit is used to indicate the simplest whole-number ratio of ions in the compound.</span>
