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Readme [11.4K]
3 years ago
5

Which of the following is not a type of radiation?

Chemistry
2 answers:
Eddi Din [679]3 years ago
6 0
The answer is actually (A.) Trans-radiation 
pishuonlain [190]3 years ago
3 0

Answer:

a

Explanation:

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What mass of hbr (in g) would you need to dissolve a 3.4 −g pure iron bar on a padlock?
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<u>Given:</u>

Mass of pure iron (Fe) = 3.4 g

<u>To determine:</u>

Mass of HBr needed to dissolve the above iron

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Reaction between HBr and Fe is

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Based on the reaction stoichiometry-

1 mole of Fe reacts with 2 moles of HBr

# moles of Fe = mass of Fe/atomic mass of Fe = 3.4/56 g.mol⁻¹ = 0.0607 moles

Therefore # moles of HBr = 2*0.0607 = 0.1214 moles

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Mass of HBr = 0.1214 moles * 81 g/mole = 9.83 g

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