Can someone help me with these homework questions please? Thanks What is the tot

Question

Can someone help me with these homework questions please? Thanks What is the total weight, in arums if 65.4-g of mossy zinc-reacts with 5.0-L of 0.2-M sulfuric acid think that it can H_2SO_4 (aq) (Density | H2SO4 = 1.1 g/ml) in a closed bottle (bottle mass excluded)? Funny question: Do you think that it can be a dangerous bomb (Why and what kind bomb basic, acidic, or destructive? 5,562.4, yes, acidic 5,563.4, no! What is the final total weight, in grams, after 32.695-g of zinc flakes, Zn(s), completely reacted with a 500-ml of 2.0-M hydrochloric acid solution. HCI (aq, density D_HCl = 1.05 g/ml), in an open beaker (weight of the beaker ignored) (atomic mass: H: 1.0: Cl: 35.5. and Zn 65.39)? Zn(s) + 2HCI(aq) rightarrow ZnCl_2(aq) + H_2(g) uparrow 532.7 531.7 530.7 556.7 557.7 75.0 grams iron (Sp. Heat Cap|iron = 0.45 J/g degree C) was heated with 15.0 kilocalories of thermal energy from T_i = 77.0 degree F initially. Calculate its final temperature. T_f, in degree C (1.0 kg = 2.2 lb, 1.0 Cal = 4.I8 J)? 1940 469 77.4 1.88 Times 10^3 2160

Explanation / Answer

53)

Heat supplied = ms(Tf - Ti)

15 x4.18 x 103 = 75 x 0.45 x(Tf - 25)

Tf = 1.88 x 103

51)

Mass of Zinc taken = 65.4 g

moles of zinc taken = 1 mole

weight of sulphuric acid taken = 5000 x 1.1 = 5500 gm

moles of sulfuric acid taken = 56.08 mole

Zn + H2SO4 -------> ZnSO4 + H2

Since H2 will escape only ZnSO4 will be left

So 1 mole of Zinc sulphate will be produced

weight of 1 mole zinc sulphate = 161.47 gm

moles of sulphuric acid left = 55.08 moles

weight of sulphuric acid left = 5401.69 gm

total weight left = 5563.5

yes it is destructive so (e)

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