In our everyday environment, diffraction is much more evident for sound waves than for light waves. why is this so?

Answer with explanation:

We know that diffraction of waves  is the phenomenon of bending of waves around a corner or an obstacle which it may encounter in it's path.

Any wave diffracts around an object only if the size of the object is comparable to the wavelength of the wave.

As we know that the wavelength of sound waves are generally in the order of meters(17 mm-17 m) which is highly large than the wavelength of light waves whose wavelength is in the order of manometers(500 manometers) thus the diffraction effects of sound waves are much more evident as compared to the diffraction produced by light waves as the objects that we encounter in our daily lives have sizes comparable to the wavelength of sound thus the effects are much more evident.

answer: he got 23

explanation:

  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂