The precipitate forms when one of the compounds is insoluble. In double replacement reactions, the positive ions and the negative ions are dissolved reactants that switch places to form the precipitation reaction.

5 0

3 years ago

The first excited state of Ca is reached by absorption of 422.7 nm light. Find the energy difference (kJ/mole) between the groun

dedylja [7]

For the excited state of Ca at the absorption of 422.7 nm light,the energy difference is mathematically given as

E= 4.70x10-22 kJ/mol

<h3>What is the energy difference (kJ/mole) between the ground and the first excited state?</h3>

Generally, the equation for the Energy is mathematically given as

E = nhc / λ

Where

h= plank's constant

h= 6.625x 10-34 Js

c = speed of light

c= 3x 108 m/s

Therefore

E = 1*(6.625x 10-34 Js)( 3x 10^8 m/s) / ( 422.7x10^-9)

E= 4.70x10-22 kJ/mol

In conclusion, Energy

E= 4.70x10-22 kJ/mol

Solve for x 5 to the power 2 x + 4 - 25 to the power x - 1 is equals to ​

Solve for x 5 to the power 2 x + 4 - 25 to the power x - 1 is equals to