hor would be the velocity of a meutron, if it had to exhibit a wavelength of 750
ID: 580656 • Letter: H
Question
hor would be the velocity of a meutron, if it had to exhibit a wavelength of 750 nm? The mass of a neutrom s 1.6749286 X10g? -/my and J-Kgm/s 27. A 0865 g of a sample with molecular formula of HC,HsOs is buned in a calorimeter whose heat capacity of is 5.812 KI, ? The temperature increases from, 23, 10 to 24.95 °C. Calculate the heat ofcombustion the substance a)per gram. b) per mole. (Hint: AE--C At Complete the following reactions. Write the molecular, ionic and net ionic reaction, and identify the spectator ions 28 a) Ni(OHbeo + HBr(M)Explanation / Answer
Q26
The Equation is given by
= h/(mv)
where
= Wavelength
h = Planck Constant = 6.626*10^-34 J s
m = mass in kg
v = velocity in m/s
Now, substitute all data
= h/(mv)
m = 1.6749286*10^-24 g = (1.6749286*10^-27) kg
HL = 750 nm = 750*10^-9 m
(750*10^-9) = (6.626*10^-34) / (1.6749286*10^-27) * v
v = (6.626*10^-34) / (1.6749286*10^-27)/(750*10^-9) = 0.52746 m/s
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