Question: The element europium exists in nature as two isotopes 151Eu
The element europium exists in nature as two isotopes: 151Eu has a mass of 150.9196 amu, and 153Eu has a mass of 152.9209 amu. The average atomic mass of europium is 151.96 amu. Calculate the relative abundance of the two europium isotopes.
Relevant QuestionsSilicon is produced for the chemical and electronics industries by the following reactions. Give the balanced equation for each reaction. Electric a. SiO2(s) + C(s) → Si2(s) + CO(g) arc furnace b. Silicon tetrachloride is ...The reusable booster rockets of the U.S. space shuttle use a mixture of aluminum and ammonium perchlorate for fuel. A possible equation for this reaction is 3Al(s) + 3NH4ClO4(s) → Al2O3(s) + AlCl3(s) + 3NO(g) + ...Phosphorus can be prepared from calcium phosphate by the following reaction: 2Ca3(PO4) 2(s) + 6SiO2(s) + 10C(s) → 6CaSiO3(s) + P4(s) + 10CO(g) Phosphorite is a mineral that contains Ca3(PO4)2 plus other non- phosphorus- ...Hydrogen cyanide is produced industrially from the reaction of gaseous ammonia, oxygen, and methane: 2NH3(g) + 3O2(g) + 2CH4(g) → 2HCN( g) + 6H2O(g) If 5.00 × 103 kg each of NH3, O2, and CH4 are reacted, what mass of HCN ...A 0.755-g sample of hydrated copper(II) sulfate (CuSO4 ? xH2O) was heated carefully until it had changed completely to anhydrous copper(II) sulfate (CuSO4) with a mass of 0.483 g. Determine the value of x. [This number is ...
Post your question