Answer:
Mass = 12.48 g
Explanation:
Given data:
Mass of sulfur dioxide = 25.0 g
Mass of sulfur formed = ?
Solution:
Chemical equation:
SO₂ → S + O₂
Number of moles of SO₂:
Number of moles = mass/molar mass
Number of moles = 25.0 g / 64.07 g/mol
Number of moles = 0.39 mol
Now we will compare the moles of SO₂ with S.
SO₂ : S
1 : 1
0.39 : 0.39
Mass of sulfur:
Mass = number of moles × molar mass
Mass = 0.39 mol × 32 g/mol
Mass = 12.48 g
Answer:
Potassium chloride > Butanol >Propane > Ethane
Explanation:
Water is a polar solvent and it is likely to dissolve polar molecules.
KCl is ionic in nature and is completely polar and the solubility of the salt, potassium chloride is the highest.
Butanol can form hydrogen bonding with the water despite having a carbon chain. Thus, butanol will be at second.
Taking about, ethane and propane, both are non polar and least likely to dissolve in water. But, the extent of the London forces increases with the increase in the molecular weight. So, propane will dissolve faster than ethane.
The order is:
Potassium chloride > Butanol >Propane > Ethane
Answer:
Wavelength, 
Explanation:
We have,
Velocity of the object, 
Mass of the object, 
It is required to find the wavelength of the object. The relation between wavelength and velocity of the object is given by :
h is Planck's constant
So, the wavelength of the object is 
.
Acids change the rate Corrosion and increase its temperature.
