certain element X forms a compound with oxygen in which there are two atoms of X for every three atoms of O. In this compound, 1.125 g of Xare combined with 1.000 g of oxygen. Use the average atomic mass of oxygen to cal- culate the average atomic mass of X. Use your calculated atomic mass to identify the element X.
certain element X forms a compound with oxygen in which there are two atoms of X for every three atoms of O. In this compound, 1.125 g of Xare combined with 1.000 g of oxygen. Use the average atomic mass of oxygen to cal- culate the average atomic mass of X. Use your calculated atomic mass to identify the element X.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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I have the answer but don’t know what to do what type of problem is this called and 1.125g of x combined with 1.000g of oxygen would be 1.125 + 1.000g so why is it 1.125/1.000
Transcribed Image Text:certain clement X forms a compound with oxygen in
which there are two atoms of X for every three atoms of O.
In this compound, 1.125 g of Xare combined with 1.000 g
of oxygen. Use the average atomic mass of oxygen to cal-
culate the average atomic mass of X. Use your calculated
atomic mass to identify the element X.
Transcribed Image Text:Using the ratio of the number of atoms of O and X and the atomic mass of O, we can compare
that to the ratio of the masses of O and X to calculate the atomic mass of X:
1.125 g X
1.000 g O
2 atoms X
3 atoms O
u X
15.9994 u O
u X= 27.00 u
The element is aluminum.
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