can you till me what i have to write in each blank Firefox File Edit View Histor

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can you till me what i have to write in each blank

Firefox File Edit View History Bookmarks Tools Window Help | . * 4)) 9796 H, Mon 10:16 PM Nasser S. y x 2-4x+3 Alg.. X 6.3 Homework A2 Mathway MathP.. X / M Ch 3 Stoichi me.. A e Home Chegg.com x gl Outlook.com- x 37t331 2af2ae583.. x x + C ii ap ezto.mheducation.com/hm.tpx?--0.948590521 7993378_1454989355482 Most Visited r. Getting Started Apple : J Disney M Yahoo! Search Save &Ext; Submit | | Question 1 (of 20) Save & Exit Submit value: 1.00 points 1 out of 3 attempts Be sure to answer all parts. Assistance Check My Work View Hint View Question Show Me Guided Solution Print Question Help Report a Problem Lead can be prepared from galena [lead(II) sulfide] by first roasting the galena in oxygen gas to form lead(II) oxide and sulfur dioxide. Heating the metal oxide with more galena forms the molten metal and more sulfur dioxide. (a) Write a balanced equation for each step, including the state of each chemical. (b) Write an overall balanced equation for the process, including the state of each chemical. 8

Explanation / Answer

2PbS(s) + 3O2(g) -----> 2PbO(s) + 2SO2(g) (Balanced reaction for the first case)

PbS(s) + O2(g) -----> Pb(l) + SO2(g) (Balanced reaction forming molten metal)

In both the reaction, one mole of PbS will give one mole of SO2

Molar mass of Pb = 207.2 gm/mol

Number of moles of PbS = 1000 * 10^(3)/239.2 = 4180.60 moles

Moles of SO2 formed = 4180.60 moles

Molar mass of SO2 = 32 + 2 * 16 = 64 gm/mol

Mass of SO2 formed = 4180.60 moles * 64 gm/mol = 0.26755 metric tonnes

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