Study Guide Question

Question

Question

find the average atomic mass for element "X" if 70.4% of element X is found as isotope X-151 and the remaining 29.6% is isotope X-152

chemistry

Answer 1

Similar Homework Help Questions

Element “X” has two main isotopes, 93X (with a precise mass of 92.94 u) and 95X...

Element “X” has two main isotopes, 93X (with a precise mass of 92.94 u) and 95X (94.93 u). The average atomic mass of X has been found to be 93.55 u. Calculate the percent abundance of the 93X isotope.
A mysterious newly discovered element is found to consist of two isotopes I and II. It...

A mysterious newly discovered element is found to consist of two isotopes I and II. It is found that the relative abundance of isotope I is equal to 68.12%. If isotope I has a mass of 308.72 amu and isotope II has a mass of 311.19 amu, then what is this element's average atomic mass?
< Question 4 of 17 > Suppose that a fictitious element, X, has two isotopes: 59X...

< Question 4 of 17 > Suppose that a fictitious element, X, has two isotopes: 59X (59.015 amu) and "x (62.011 amu). The lighter isotope has an abundance of 75.7%. Calculate the average atomic mass of the element X average atomic mass:

the element X has naturally occurring isotope. The masses (amu) and % abundance of the isotopes...

the element X has naturally occurring isotope. The masses (amu) and % abundance of the isotopes are given below. the average atomic mass of the element is ? Isotope: 221X, 220X, 218 X Abundance: 74.22, 12.78, 13.00 Mass: 220.9, 220.0, 218.1
8 of 50 > Suppose a new element with an average atomic mass of 23.873 u...

8 of 50 > Suppose a new element with an average atomic mass of 23.873 u is discovered on Mars. This element is composed of two isotopes. The most abundant isotope has a natural abundance of 83.664% and an isotopic mass of 22.821 u. Calculate the isotopic mass of the least abundant isotope. isotopic mass:
Suppose a new element is discovered and it has two stable isotopes. One isotope has a mass of 72.550 u and an abund...

Suppose a new element is discovered and it has two stable isotopes. One isotope has a mass of 72.550 u and an abundance of 38.44%. The average atomic mass of the element is 70.565 u. What is the mass of the second isotope? mass of isotope: about us creen privacy policy terms of use contact us help

The alien element Xx is given to scientists to study in two forms: & Question 6...

The alien element Xx is given to scientists to study in two forms: & Question 6 Not yet answered Points out of 1.00 P Flag question 310 125 Xx If the average atomic mass is 309.50 amu, which isotope is most abundant? Select one: o a. Cannot be determined ob. 310 O c. Both have the same abundance O d. 308
A fictitious element Z has an average atomic mass of 223.16 u. Element Z has two...

A fictitious element Z has an average atomic mass of 223.16 u. Element Z has two naturally occuring isotopes. The more abundant isotope has an exact mass of 224.45 u and a relative abundance of 65.25 % . Calculate the exact mass of the second isotope.
Drive 11:24 AM 7 91% 2. (10 pts total) A new element with three isotopes is...

Drive 11:24 AM 7 91% 2. (10 pts total) A new element with three isotopes is discovered on Planet X. A mass spectrometer was used to obtain the following information for this element. Isotope Abundance Mass (amu) 159x 30.60% 159.37 163 ? 162.79 53.61% 163.92 164 X A. (4 pts) What is the average atomic mass for element X? < > B. (2 pts) If you were able to select a single atom of element X, what would its mass...

Most elements occur naturally as a mix of different isotopes. An element's atomic mass is the...

Most elements occur naturally as a mix of different isotopes. An element's atomic mass is the weighted average of the isotope masses. In other words, it is an average that takes into account the percentage of each isotope. For example, the two naturally occurring isotopes of boron are given here The atomic mass of boron is calculated as follows: (10.0 times 0.199) + (11.0 times 0.801) = 10.8 amu Because the heavier isotope is more abundant the atomic mass a...