What is the average atomic mass of bromine? One isotope of bromine has an atomic mass of 78.92amu and a relative abundance of 50.69%. The other major isotope of bromine has an …

It's because of the whole average of all the isotopes. The reason for this is because an atom can have lots of different isotopes, so the atomic mass calculation will be the average of all those …

Using the isotopic masses and their relative abundance, the average atomic mass comes out to 24.3051 u . You work this out as a weighted average. Each isotope's mass is multiplied by its …

Jan 24, 2018 · Well, since it has an empirical formula of C3H 4O3, then we can find its "empirical" mass. Carbon has a mass of 12 atomic units. Hydrogen has a mass of 1 atomic unit. Oxygen …

How do you calculate the number of moles of potassium hydroxide that must be dissolved to make the following solution: 500 #cm^3# of 1 #mol##/##dm^3#? What is the maximum …

The element antimony has an atomic weight of 121.757 u and only two naturally occurring isotopes. One isotope has an abundance of 57.3% and an isotopic mass of 120.904 u. What is …

The ionization potential of an atom is defined as the energy required to completely remove an electron . using Bohr's theory , calculate the ionization potential of the hydrogen atom? What's …

Calculate the concentration of the diluted protein You took 15.0 µL of the sample and diluted it with 15.0 µL of buffer to get 30.0 µL of solution. You get the new concentration from a …

We know the mass of #Fe# produced, which is given to be #700.0 * 10^6g# (I've converted it to grams because it will be easier to work with), and #Fe# 's molar mass - #55.8g/ (mol)# - which …

You will add enough water to 3.98 g of "Na"_2"CO"_3 to make a total of 150 mL. > Step 1. Write the chemical equation for the reaction with HCl. "Na"_2"CO"_3 + "2HCl ...