WebJun 6, 2024 · Explanation: Let the percentage of the isotope 71Ga be = x % Then, The percentage of the isotope 69Ga is = (100 −x)% We write the mass balance equation 100 ⋅ 69.72 = x ⋅ 71 +(100 −x) ⋅ 69 6972 = 71x + 6900 − 69x 2x = 6972 − 6900 = 72 x = 36 Therefore, The percentage of the isotope 71Ga is = 36% Answer link WebYou can approximate the atomic mass of a single isotope (not the element in general) by guessing that the atomic mass in atomic mass units is numerically the same as the mass number (the number of protons + the …
Gallium – Atomic Number – Atomic Mass – Density of Gallium
WebSep 12, 2024 · Answer: The atomic mass of gallium-71 is 70.92 amu. Explanation: Mass of isotope Ga-69 = 68.9256 amu % abundance of isotope Ga-69 = 60.11% = Mass of isotope Ga-71 = ? % abundance of isotope Ga-71 = (100-60.11)% = Formula used for average atomic mass of an element : Therefore, the atomic mass of gallium-71 is … WebAug 4, 2024 · In this case, the first isotope Gallium - 69 has an atomic mass of 69 and a percent natural abundance of X%. The second isotope Gallium - 71 has an atomic mass of 71 and a percent natural abundance of (100-X)%. On the other hand, the Relative Atomic Mass of Gallium is 69.8. Then, the value of X can be calculated as: 69× X+ 71× (1-X)= … ckht borang 2023
Solved: Gallium has two naturally occurring isotopes, 69Ga and
Web69 31 Ga and 71 31 Ga are isotopes of gallium. With reference to this example, explain what you understand by the term isotope. b. A sample of gallium contains 60% of atoms of 69 31 Ga and 40% of atoms of 71 31 Ga. Calculate the relative atomic mass of this sample of gallium. WebCalculate the average atomic mass of Br based on this experiment. Answer: ... •Relative to an atom of carbon. Mark if it is wrong. Pabrainliest pls. 19. How many mol are … WebA naturally occurring sample of chlorine is 75.78% chlorine-35 and 24.22% chlorine-37, so, to calculate the average mass, we need to do the sum. 35 ×0.7578 +37 ×0.2422 = 35.5. which gives us the mass shown on the periodic table, 35.5 u. Here is a video which summarizes how to calculate average atomic mass. video from: Noel Pauller. ckht cheras