User:Allison K. Alix/Notebook/CHEM581/2012/10/24
Experimental Chemistry  Main project page Previous entry Next entry 
Objective
Description
DataPreparation of 50 μM Na_{2}SO_{4}
[math]\displaystyle{ \frac {142.07 g} {mol} \times \frac {50mmol} {L} \times \frac {10^3 mol} {1mmol} \times \frac {1 L} {1000mL} \times 10mL = 0.071035 g }[/math] 0.071035 g Na_{2}SO_{4} in 10mL H_{2}O to prepare 50mM. Dilute to 50μM by using 10μL 50mM in 9.99mL H_{2}O. Preparation of 50 μM 72 wt% Fe_{2}(SO_{4})_{3}
[math]\displaystyle{ \frac {72} {100} \times \frac {399.88 g} {mol} \times \frac {50mmol} {L} \times \frac {10^3 mol} {1mmol} \times \frac {1L} {1000mL} \times \frac 10mL = 0.144g }[/math] 0.144 g 72 wt% Fe_{2}(SO_{4})_{3} in 10mL H_{2}O to prepare 50mM. Dilute to 50μM by using 10μL 50mM in 9.99mL H_{2}O. Preparation of 50 μM Al_{2}(SO_{4})_{3}
[math]\displaystyle{ \frac {656.33 g} {mol} \times \frac {50mmol} {L} \times \frac {10^3 mol} {1mmol} \times \frac {1L} {1000mL} \times 10mL = 0.328g }[/math] 0.328 g Al_{2}(SO_{4})_{3} in 10mL H_{2}O to prepare 50mM. Dilute to 50μM by using 10μL 50mM in 9.99mL H_{2}O.
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