Fill in the blanks 8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundanceof the heavier isotope, if the average atomic mass of bromine is 79.90 amu is ..........9- In the following reaction, The spectator ions arePb(NO,),(aq) + 2NACI(aq)PbCi (s) +2NANO (aq)10- A 1.056g of a metal carbonate MCO (s), contaíning an unknown metal M, were heated to givethe metal oxide and 0.376 g CO,.MCO,(s) ++ heat->MO(s) + CO,(g)The identity of the metalM is11- Consider the following equation: 2C,H* 4 CO,6 H,0When 6 mol of C,H, are burned, the number of moles of CO, produced will be- Consider the unbalanced reaction:Al + O.->Al,0,

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Answered: 8- Bromine (Br) has two isotopes, with…

8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance of the heavier isotope, if the average atomic mass of bromine is 79.90 amu is ....

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter4: Stoichiometry

Section: Chapter Questions

Problem 4.87PAE

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Question

Fill in the blanks

8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance
of the heavier isotope, if the average atomic mass of bromine is 79.90 amu is ..........
9- In the following reaction, The spectator ions are
Pb(NO,),(aq) + 2NACI(aq)
PbCi (s) +
2NANO (aq)
10- A 1.056g of a metal carbonate MCO (s), contaíning an unknown metal M, were heated to give
the metal oxide and 0.376 g CO,.
MCO,(s) +
+ heat
->
MO(s) + CO,(g)
The identity of the metalM is
11- Consider the following equation: 2C,H
* 4 CO,
6 H,0
When 6 mol of C,H, are burned, the number of moles of CO, produced will be
- Consider the unbalanced reaction:
Al + O.
->
Al,0,

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