Mass spectrometry is more often applied to molecules than to atoms. We will see in Chapter 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 is taken under conditions that prevent decomposition into H atoms. The two naturally occurring isotopes of hydrogen are H (atomic mass = 1.00783 amu; abundance 99.9885%) and H (atomic mass = 2.01410 amu; abundance 0.0115%). How many peaks will the mass spectrum have? Give the relative atomic masses of each of these peaks. (c) Which peak will be the largest, and which the smallest?

See explanation

Explanation:

There will be three peaks. The relative masses of each of the peaks is shown below;

1H - 1H peak will have a mass of 2*1.00783 amu = 2.01566 amu

1H -2H peak will have a mass of 1.00783 amu + 2.01410 amu = 3.02193 amu

2H - 2H peak will have a mass of 2*2.01410 amu = 4.0282 amu

The 2H - 2H peak is the smallest while 1H - 1H peak is the largest.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.