Other Chemistry Answers

The mercury in a 0.7152 g sample was precipitated with an excess of paraperiodic acid, H5IO6:

5Hg2+ + 2H5IO6 → Hg5(IO6)2 + 10H+

The precipitate was filtered, washed free of precipitating agents, dried and weighed, 0.3408 g

being recovered. Calculate the percentage of Hg2Cl2 in the sample.

The mercury in a 0.7152 g sample was precipitated with an excess of paraperiodic acid, H5IO6: 5Hg2+ + 2H5IO6 → Hg5(IO6)2 + 10H+ The precipitate was filtered, washed free of precipitating agents, dried and weighed, 0.3408 g being recovered. Calculate the percentage of Hg2Cl2 in the sample.

56.9 liters of Carbon dioxide would contain how many moles at STP?

15.7 moles of Argon gas will have what volume at STP?

Given the approximate pH of the following items, calculate the [H+]: a. Oranges 3.5 ?

Calculate the concentration of H, OH and pH and pOH of an aqueous solution of calcium hydroxide with a concentration of 0.005 mol / dm3 assuming complete dissociation

Magnesium carbonate react with dilute hydrochloric acid to form magnesium chloride,water and carbon dioxide .balance the equation.

98.0 liters of Carbon dioxide would contain how many moles at STP?

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My question is:

What mass of KIO₃ is needed to convert the copper in 0.3500g of CuSO₄.5H₂O to Cu(IO₃)₂

Please assist

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My question is:

A mixture containing only FeCl₃ and AlCl₃ weighs 5.95 g. The chlorides are converted to hydrous oxides and ignited to Fe₂O₃ and Al₂O₃. The oxide mixture weighs 2.62 g.

Determine the percentage Fe and Al in the original mixture

please assist .