There is not a force acting upon the book or the desk so nothing is moving it.
Answer:
Evaporation
Explanation:
with the help of evaporation , the liquid components are separated out from solid components easily .
Calculating the number of mole of COSO4 reacted
=mass/R.F.M
R.F.M of CUSO4 is 63.54+32+64=159.6
moles is therefore 200g/159.54=1.254moles
since reacting ratio is 1:1 ,moles of Cu is also 1.254moles
mass is therefore moles x R.F.M
1.254x63.54=79.6g(answer C)
On oxidation of aldehydes produces carboxylic acid functional group.
The product of oxidation of aldehydes depends upon whether the reaction occur in acidic medium or alkaline condition.
If oxidation of aldehydes occurs under acidic condition the product is carboxylic acid but if oxidation of aldehydes occurs under alkaline condition then reduce as well as oxidized product obtained which is known as disproportional product.
The oxidation of aldehydes occur through potassium dichromate, potassium permanganate or many more. The oxidation of aldehydes in the presence of base is known as cannizzaro's reaction.
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Answer:
PART A: 412.98 nm
PART B: 524.92 nm
Explanation:
The equation below can be used for a diffraction grating of nth order image:
n*λ = d*sinθ![_{n}](https://tex.z-dn.net/?f=_%7Bn%7D)
Therefore, for first order images, n = 1 and:
λ = d*sinθ
.
The angle θ
can be calculated as follow:
tan θ
= 9.95 cm/15.0 cm = 0.663 and
θ
=
(0.663) = 33.56°
Thus: d =λ/sin θ
= 461/sin 33.56° = 833.97 nm
PART A:
For a position of 8.55 cm:
tan θ
= 8.55 cm/15.0 cm = 0.57 and
θ
=
(0.57) = 29.68°
Therefore:
λ =d*sin θ
= 833.97*sin 29.68° = 412.98 nm
PART B:
For a position of 12.15 cm:
tan θ
= 12.15 cm/15.0 cm = 0.81 and
θ
=
(0.81) = 39.01°
Therefore:
λ =d*sin θ
= 833.97*sin 39.01° = 524.92 nm