Mass Spec & Isotopes
I am the most important thing in this class when looking at the mass spectrum.
What is the peak farthest to the right?
I determine the element.
What are protons?
Given this: "I have 50 grams of N2 and an excess of H2, how much NH3 can I produce?" I am the first step to solve this problem.
What is balance?
This value represents the mass in grams of 6.022x1023 particles
What is the molar mass?
A peak at ~15 m/z is likely this fragment.
What is +CH3?
I am the number of electrons Se-2 has.
What is 36?
I am the amount of product that should be formed after 75g of reactants are used up in a reaction fully.
What is 75 grams of product?
With 0.829 moles of CO2, H2O, and CH2O. I am the one with the most particles.
What is all of them are the same?
The amu number on the periodic table is this.
What is the weighted average mass of all naturally occurring isotopes?
I am the number of protons, neutrons, and electrons in Ar-40
What is 18p, 22n, 18e?
4 Cs + 1 B, so 5 total
I am the number of hydrogen atoms in 1 mole of C2H6Cl2Si.
A mass spectrum has two peaks, one at 79 and another at 81. I am the likely element.
What is bromine?
I have 42 electrons and a +1 charge.
What is Technetium (Tc)?
PCl5 + 4H2O ==> H3PO4 + 5HCl
Given 20 grams of PCl5 and 9 grams of H2O, I am the limiting reactant.
What is PCl5?
9g --> 22g
20 g -->17g
A 5.0g sample of an unknown liquid contains 0.05 moles. I am the molar mass.
What is 100 g/mol?
Given the molecule C3H6O2, this is a likely peak to be found on its mass spectrum.
What is a peak at 74 m/z?
I discovered a carbon atom with 2 protons.
What is a lie? What is helium?
CH4 + O2 --> CO2 + H2O
How much O2 (in grams) is necessary to produce 3 moles of CO2
64 grams
How much does a mole weight?
It depends