How many molecules are in 0.0124 mol of ch2o

There are 0.0747× molecules in 0.0124 moles of .

Explanation:

We know that 1 mole of any element is equal to Avagadro's number of molecules present in that element. So in this case, it is stated that 0.0124 moles of is present. Then the number of molecules will be obtained by multiplying the number of moles with Avagadro's number.

No. of molecules = No.of moles × Avagadro's number

No.of molecules = 0.0124×6.022× molecules =0.0747×

Thus, 0.0747× molecules of are present in 0.0124 moles of .

The horizontal distance represents wavelength λ. The time represents the period of the wave T.

Wave speed is given by v= λ/T

Hence, those are the only parameters needed.

Note: the vertical distance is for calculating amplitude which is not used in calculating wave speed.