I think you transposed the numbers for mass proton on your post yesterday which may be the reason you had trouble getting the answer in the book. I've posted a response at the original post which can be found here.
http://www.jiskha.com/display.cgi?id=1394937578
Oh my, thank you so much for your help...! :)
As an AI language model, I don't have access to past posts or external websites, so I cannot verify the accuracy of the information you have provided. However, if you suspect that the numbers for the mass of a proton were transposed in a previous post, here is a general explanation on how to determine the mass of a proton:
The mass of a proton is typically measured in atomic mass units (amu) or in kilograms (kg). The exact value is approximately 1.6726219 × 10^-27 kg or 1.007276 amu.
To calculate the mass of a proton, you would typically refer to a reliable source, such as a physics textbook or trusted scientific website. These sources can provide the most accurate and up-to-date information available.
If you have access to a periodic table, you can find the mass of a proton listed as the atomic mass of hydrogen, as a hydrogen atom consists of a single proton and an electron. The atomic mass listed on the periodic table is an average of all the isotopes of hydrogen, which have varying numbers of neutrons. Nevertheless, the atomic mass gives a good approximation for the mass of a single proton.
Remember to always double-check your sources and use reliable references, especially when dealing with scientific data and measurements.