Why can\'t we see the de Broglie wavelength of everyday macroscopic objects (suc

Question

Why can't we see the de Broglie wavelength of everyday macroscopic objects (such as a moving car or a thrown baseball)? The macroscopic objects are moving to quickly for the wavelength to be observed. The wavelength is too small relative to the size of macroscopic objects to be observed. Macroscopic objects do not exhibit wave-like properties. A 38.5 g block of silver at 35.0 degree C absorbs 650.0 J of energy. What is the final temperature of the block? (C_silver = 0.240 J/g C) 40.2 degree C 70.3 degree C 105.3 degree C 399 degree C 24.9 degree C The generic formula for a metal chloride with an unknown metal is MCl_4 An 8.74 g sample of the metal chloride is decomposed and found to contain 3.68 g of chlorine. What is the identity of the metal in this metal chloride?

Explanation / Answer

38 ) The wavelength is too small relative to the size of the macroscopic object observed

39) Heat capacity of silver,Csilver= 0.240J/g °C

Mass of Silver,m =38.5g

Heat absorbed ,q = 650J

q = m × Csilver × T

T = q/(m × Csilver)

= 650J /(38.5g ×0.240(J/g°C)

= 70.34°C

So, the answer is 105.3°C

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