A 1,000 kg truck initially had a velocity of 9 m/s. A force acts on it for a duration of time. After that force, the truck now h
1 answer:
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Answer:
total number of electron in 1 litter is 3.34 × electron
Explanation:
given data
mass per mole = 18 g/mol
no of electron = 10
to find out
how many electron in 1 liter of water
solution
we know molecules per gram mole is 6.02 × molecules
no of moles is 1
so
total number of electron in water is = no of electron ×molecules per gram mole × no of moles
total number of electron in water is = 10 × 6.02 × × 1
total number of electron in water is = 6.02× electron
and
we know
mass = density × volume ..........1
here we know density of water is 1000 kg/m
and volume = 1 litter = 1 × m³
mass of 1 litter = 1000 × 1 ×
mass = 1000 g
so
total number of electron in 1 litter = mass of 1 litter ×
total number of electron in 1 litter = 1000 ×
total number of electron in 1 litter is 3.34 × electron
Answer:
electrostatic force = 1.08 × N
and if sodium ion replace by Li+ and chloride by Br− then there will be no change in electrostatic force
magnitude of electrostatic force will be same
Explanation:
given data
separation d = 0.46 nm = 4.6 × m
to find out
electrostatic force between Na+ and Cl− ion
and if sodium ion replace by Li+ and chloride by Br−
solution
we know electrostatic force formula that is
electrostatic force = K ×Q1×Q2 / d² .........................1
here k is coulombs constant that is = 9 × and Q1 and Q2 is
charge that is Q1 = + 1.6 × C
and Q2 = - 1.6 × C
so put all these value in equation 1
electrostatic force = K ×Q1×Q2 / d²
electrostatic force = 9 × ×1.6 ×
× -1.6 ×
/ (4.6 ×
)²
so electrostatic force = 1.08 × N
and if sodium ion replace by Li+ and chloride by Br− then there will be no change in electrostatic force
so magnitude of electrostatic force will be same