The solubility of magnesium chloride at 20 degree C is 54.9 g/100 mL of water. T

Question

The solubility of magnesium chloride at 20 degree C is 54.9 g/100 mL of water. That of magnesium iodide is 148.0 g/100 mL. Using this information, do you expect magnesium fluoride to be more or less soluble than magnesium bromide? Explain your reasoning. What are two hazards are associated with using a centrifuge? In this experiment, why is it important to dispose of all waste chemicals as heavy metal hazardous waste? Complete and balance the following precipitation equations. Write the correct formula and the correct state notation for each product. Each reaction results in only one precipitate and one soluble compound. If necessary, consult a table of solubility rules. a) SrCl_2 (aq)(+ (NH_4)_2 C_2O_4(aq) b) Ba(NO_3)_2(aq) + H_2SO_4(aq) c) Pb (NO_3)_2 (aq) + Ba_3PO_4(aq) d) AgNO_3 (aq) + NgBr_2(aq)

Explanation / Answer

1) From the trend we observe that as we move upwards the Halide series the solubility of a salt of halide with Magnesium in water decreses. Hence we can say that solubility of MgF2 will be lower than both the given salts.

2) Followinf are the hazards of Centrifuge

3) Answer can not be given as relevent data is not given

4) (NH4)2C2O4(aq) + SrCl2(aq) ===> 2 NH4Cl(aq) + SrC2O4(s)

   Ba(NO3)2(aq) + H2SO4(aq) ===> BaSO4(s) + 2HNO3(aq)

3Pb(NO3)2(aq) + 2 Na3PO4(aq) ===> Pb3(PO4)2(s) + 6 NaNO3(aq)

2AgNO3(aq) + MgBr2(aq) ===> 2AgBr(s) + Mg(NO3)2(aq)

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