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Unit 2: How do chemical reactions shape the natural world?

Quick questions on Gravimetric analysis: VCE Chemistry Unit 2

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Outline the four essential steps in a gravimetric analysis. [4 marks]
What is q2?
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A water sample of 100 mL100 \, \text{mL} gives 0.0537 g0.0537 \, \text{g} of dried BaSO4\text{BaSO}_4 when treated with excess BaCl2\text{BaCl}_2. Calculate the concentration of sulfate in mg/L\text{mg/L}. [3 marks]
What is q3?
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A 1.000 g1.000 \, \text{g} sample of an unknown sulfate salt produces 0.6645 g0.6645 \, \text{g} of BaSO4\text{BaSO}_4. (a) Calculate the percentage of sulfate. (b) Determine the moles of sulfate.

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