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MTALHAHASSAN2
 one year ago
Hydrogen3 has a halflife of 12.35 years. What mass of hydrogen3 will remain form a 100.0 MG initial sample after 5.0 years?
A) 7 MG
B) 24 MG
C) 76 MG
D) 18 MG
MTALHAHASSAN2
 one year ago
Hydrogen3 has a halflife of 12.35 years. What mass of hydrogen3 will remain form a 100.0 MG initial sample after 5.0 years? A) 7 MG B) 24 MG C) 76 MG D) 18 MG

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MTALHAHASSAN2
 one year ago
Best ResponseYou've already chosen the best response.0Can someone please help me with it

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2We will have to use the following \[\huge \frac{ m_f }{ m_i } = \left( \frac{ 1 }{ 2 } \right)^{\left( \frac{ t }{ T^{1/2} } \right)}\] where \[T^{1/2} = \text{half life}\] \[t =\text{ time}\] \[m_f = \text{final mass}\] \[m_i = \text{initial mass}\]

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2So let me ask you, what are we solving for here?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2So our formula then becomes \[\huge m_f = m_i \left( \frac{ 1 }{ 2 } \right)^{\frac{ t }{ T^{\frac{ 1 }{ 2 }} }}\] right?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2Now at this stage, you just need to plug in the values

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2I think you can at least do that much.

MTALHAHASSAN2
 one year ago
Best ResponseYou've already chosen the best response.0Wait what we put for T 1/2

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2Don't let the 1/2 confuse you, I put it there to represent half life, that is 12.35 years

MTALHAHASSAN2
 one year ago
Best ResponseYou've already chosen the best response.0I am getting a very big number

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2\[\huge m_f = (100MG)(1/2)^{\frac{ 5.0 }{ 12.35 }}\]
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