Answer:
0.263 mol
Explanation:
K2SO4 - potassium sulfate
Molar mass (K2SO4) = 2*39.0983 + 32.065 + 4*15.9994 =
= 174.2592≈174.26 g/mol
45.8 g * 1 mol/174.26 g = 0.263 mol
True
the definition of matter is any substance that has mass and takes up space.
Answer:
The concentration of the solution, 
Explanation:
The absorbance of a solution can be calculated by Beer-Lambert's law as:
Where,
A is the absorbance of the solution
ɛ is the molar absorption coefficient (
)
C is the concentration (
)
l is the path length of the cell in which sample is taken (cm)
Given,
A = 0.20
ɛ = 27400 
l = 1 cm
Applying in the above formula for the calculation of concentration as:
So , concentration is:
Kinetic energy is energy that transfers energy by <span>net force which causes it to speed up and that causes more kinetic energy to be added . kinetic energy depends on mass and motion </span><span />
Beta decay converts a neutron to a proton and emits a high-energy electron, producing a daughter nucleus with the same mass number as the parent and an atomic number that is higher by 1.
