Use the data below to determine the mass ratio of iron to oxygen for compound 1. Compound 1 2 Mass Fe (grams) 15.55 20.98 Mass O (grams) 4.45 9.02 [P]: 1 Enter the answer that belongs in the green box. Iron Ratio Cmpd 1 Enter

10. Copper has two naturally occurring isotopes, 6Cu (isotopic mass = 62.9296 amu) and 6Cu (isotopic mass = 64.9278 amu). If copper has an atomic mass of 63.546 amu, what is the % abundance of each isotope?

Bromine and chlorine react to form simple diatomic molecules in a 1:1 ratio, BrCl. The natural abundances of the chlorine isotopes are 75.77% 35C1, and 24.23% 37Cl. The natural abundances of bromine are 50.69% 7⁹Br and 49.31% 81Br. What is the mass of the least common form of BrCl? That is, which peak in the mass spectrum will have the lowest intensity? Give your answer to the nearest whole number, without units. The lowest intensity peak can be fount at __.

tion 16 of 30 > The element chlorine has two naturally occurring isotopes. The isotopic masses and abundances of these isotopes are shown in the table. Isotope Isotopic mass (u) Abundance (%) 35 CI 34.97 75.77 37 Cl 36.97 24.23 Calculate the average atomic mass of chlorine to two digits after the decimal point. u average atomic mass:

A hypothetical element exists as two isotopes: I = 85.50 amu and II = 88.70 amu. If the percent abundance of isotope I is (2.16x10^1)%, what would be the calculated atomic mass (in amu)? Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer:

How many moles of iron atoms do you have if you have 4.10 x 1023 atoms of iron. (The mass of one mole of iron is 55.85 g.) 1 4 7 +/- 6 ctv A N МacВook Air esc 888 F1 F3 DII DD F4 FB FO @ 23 $ & 1 2 3 4 5 7 8. Q W R T Y A S F H. J K C V M. IG option command MOSISO * 00

6. This Magnesium top by Foreverspin TM weighs merely 6g. a) Write the weight of this top in kilograms, in scientific notation. b) The Atomic Weight of Magnesium is 24.305 grams/ Mole. If there are 6.02214076 ×x 1023 atomic particles in 1 Mole of Magnesium, how many particles are in 6g? Operate and express your solution in scientific notation and in a sentence.

Please answer question 17 Part A

A generic element, G, is composed of two isotopes, ¹32G and 128G. 132G has a natural abundance of 90% and an isotopic mass of 131.90 amu, and 128G has a nautral abundance of 10% and an isotopic mass of 127.90 amu. What is the average atomic mass of this element? 105.92 amu 131.50 amu 128.30 amu 13150 amu

The percentage of Carbon Dioxide is 273%. How many grams of carbon would there be in 5 grams of carbon dioxide? A) 1.37 g B) 137 g C) 27.3 g D) 18.3 g