Is anybody good at chemistry? This is a pre lab and I'm struggling. I tried

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Anonymous
2016-03-16 08:16:01Post No. 16922348
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Anonymous 2016-03-16 08:16:01 Post No. 16922348 [Report]

Is anybody good at chemistry? This is a pre lab and I'm struggling. I tried to google it but I can't find results. Can you help me out please?

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Anonymous 2016-03-16 08:18:23 Post No.16922353
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Anonymous 2016-03-16 08:18:23 Post No.16922353 [Report]

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>>16922348
Better picture sorry

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Anonymous 2016-03-16 09:08:19 Post No.16922429
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Anonymous 2016-03-16 09:08:19 Post No.16922429 [Report]

If you dilute something to 1/10 of its volume, concentrations will be lowered to 1/10, so 0.03M
If you take 4ml of 0.03M Fe3 solution and dilute it to 10ml concentrations will decrease to 4/10, so it's 0.012M
All the thiocyanates listed are soluble in water and their cations don't cross react with Fe3+.

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Anonymous 2016-03-16 10:40:21 Post No.16922611
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Anonymous 2016-03-16 10:40:21 Post No.16922611 [Report]

>>16922429
Thank you so much

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Anonymous 2016-03-16 10:48:28 Post No.16922626
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Anonymous 2016-03-16 10:48:28 Post No.16922626 [Report]

For those dilutions, you can use the Dilution Equation:

C1V1 = C2V2

C1 and C2 are concentrations and V1 and V2 are volumes.
This is an equation that every chemistry student should have in their bag of tricks.