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→Calculating Mass
====Calculating Mass====
{| class="wikitable"
| style="height:20px; width:300px; text-align:center;" |Calculate the [[mass]] of an [[ion]] with an [[Electrical Charge|charge]] of -3.20x10<sup>-19</sup>[[Coulomb|C]] and a '''specific charge''' of -5.80x10<sup>6</sup>Ckg<sup>-1</sup>.
| style="height:20px; width:300px; text-align:center;" |Calculate the [[Relative Atomic Mass|relative atomic mass]] of a [[Atomic Nucleus|nucleus]] with an [[Electrical Charge|charge]] of 9.61x10<sup>-19</sup>[[Coulomb|C]] and a '''specific charge''' of 4.11x10<sup>7</sup>Ckg<sup>-1</sup>.
|-
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities in [[SI Unit]]s.'''
<math>S.C. = -5.80\times10^{6}</math>Ckg<sup>-1</sup>
<math>Q = -3.20\times10^{-19}</math>[[Coulomb|C]]
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities in [[SI Unit]]s.'''
<math>S.C. = 4.11\times10^{7}</math>Ckg<sup>-1</sup>
<math>Q = 9.61\times10^{-19}</math>[[Coulomb|C]]
|-
| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
<math>S.C. = \frac{Q}{m}</math>
<math>-5.80\times10^{6} = \frac{-3.20\times10^{-19}}{m}</math>
| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].'''
<math>S.C. = \frac{Q}{m}</math>
<math>4.11\times10^{7} = \frac{9.61\times10^{-19}}{m}</math>
|-
| style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
<math>m=\frac{-3.20\times10^{-19}}{-5.80\times10^{6}}</math>
<math>m=5.52\times10^{-26}kg</math>
| style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''
<math>m=\frac{9.61\times10^{-19}}{4.11\times10^{7}}</math>
<math>m=2.34\times10^{-26}kg</math>
To find the [[Atomic Mass|atomic mass]] divide this [[mass]] by the [[mass]] of a single [[nucleon]].
<math>A=\frac{2.34\times10^{-26}}{1.67\times10^{-27}</math>
<math>A=14.0</math>
The [[Relative Atomic Mass|relative atomic mass]] is 14.
|}