This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
Step 1: Calculate the mass of silicon in 1 cm^3. The density of silicon is given as 2.23\ gcm^3. Mass = Density × Volume Mass = 2.23\ gcm^3 × 1 cm^3 = 2.23 g Step 2: Calculate the number of moles of silicon in 1 cm^3. The atomic mass of silicon is 28.09\ gmol. Number of moles = MassAtomic Mass Number of moles = 2.23 g28.09\ gmol ≈ 0.07938 mol Step 3: Calculate the number of atoms in 1 cm^3 of silicon. Use Avogadro's number, which is 6.022 × 10^23\ atomsmol. Number of atoms = Number of moles × Avogadro's number Number of atoms = 0.07938 mol × 6.022 × 10^23\ atomsmol Number of atoms ≈ 4.781 × 10^22 atoms The number of atoms in 1 cm^3 of silicon is: 4.781 × 10^22 atoms That's 2 down. 3 left today — send the next one.