Mass spectrometry is more often applied to molecules than to atoms. we will see in chapter 3 in the textbook that the molecular weight of a molecule is the sum of the atomic weights of the atoms in the molecule. the mass spectrum of h_2 is taken under conditions that prevent decomposition into h atoms. the two naturally occurring isotopes of hydrogen are^1h (atomic mass = 1.00783 a mu; abundance 99.9885%) and^2h (atomic mass = 2.01410 a mu; abundance 0.0115%). how many peaks will the mass spectrum have? express your answer as an integer. give the relative atomic masses of each of these peaks. express your answers using six significant figures. enter your answers in ascending order separated by commas.

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

b. examine and describe cells