Dina computed the mass of 1,000 protons in grams. The calculator displayed the number 1.67E−21 . What is the mass of 1,000 protons in scientific notation
The mass of a single proton is approximately \(1.67 \times 10^{-24}\) grams. If you have 1,000 protons, you would calculate the mass as follows:
Mass of 1,000 protons = 1,000 protons \(\times\) \(1.67 \times 10^{-24}\) grams/proton
So,
Mass of 1,000 protons = \(1,000 \times 1.67 \times 10^{-24}\) grams
Mass of 1,000 protons = \(1.67 \times 10^{3} \times 10^{-24}\) grams
Mass of 1,000 protons = \(1.67 \times 10^{-21}\) grams
Thus, the mass of 1,000 protons is \(1.67 \times 10^{-21}\) grams, which is already in scientific notation as shown on the calculator display.