solution, mL dissolved rock 1 10 2 10 3 10 4 10 5 10 mL 0 100M sodium ...

solution, mL dissolved rock 1.Â Â Â Â Â Â Â Â Â Â Â Â Â 10 2.Â Â Â Â Â Â Â Â Â Â Â Â Â Â 10 3.Â Â Â Â Â Â Â Â Â Â Â Â Â 10 4.Â Â Â Â Â Â Â Â Â Â Â Â Â 10 5.Â Â Â Â Â Â Â Â Â Â Â Â Â Â 10 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â mL 0.100M sodium metasilicate added 0 1.00 2.00 4.00 20.00 total volume 50 50 50 50 50 Si Signal (mA) 0.235 0.500 0.768 1.250 5.202 A 10.000g sample of rock...

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Chemistry

solution, mL dissolved rock
1.Â Â Â Â Â Â Â Â Â Â Â Â Â 10
2.Â Â Â Â Â Â Â Â Â Â Â Â Â Â 10
3.Â Â Â Â Â Â Â Â Â Â Â Â Â 10
4.Â Â Â Â Â Â Â Â Â Â Â Â Â 10
5.Â Â Â Â Â Â Â Â Â Â Â Â Â Â 10
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â mL 0.100M sodium metasilicate added
0
1.00
2.00
4.00
20.00
total volume
50
50
50
50
50
Si Signal (mA)
0.235
0.500
0.768
1.250
5.202
A 10.000g sample of rock containing quartz as the sole source ofsilicon is dissolved and diluted to 1.000 +/- 0.010 liters andanalyzed by the method of standard additions. What is the wt% ofquartz in the rock?

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4.2 Ratings (853 Votes)

Concentration of sodium metasilicate added 0150 M Solution Total volume mL Volume of 0150 M sodium metasilicate added mL Concentration of added sodium metasilicate in the final solution M vol addedtotal vol0150 M Intensity of signal mA 1 50 000 0000 0235 2 50 100 0003 0500 3 50 200 0006 0768 4 See Answer

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