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Four moles of carbon monoxide (CO) has 48 grams of carbon (C) and 64 grams of oxygen (O). What is the percent composition of carbon in carbon monoxide?

Md Ariful Islam

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Md Ariful Islam

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Answer: m (CO) = n*M, where n is the amount of substance, mole, M is the molar mass, g/mole m (CO) = 4*28 = 112 g % C = m (C)*100% / m (CO) = 48*100 % / 112 = 42.8 %
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Caculate the pH pOH of a soulition containing: 0.03 moles of HCl 1.2 moles of NaOH 5.3 x 10-4 moles of HNO3 3.3 x 10-3 moles of KOH 8 x 10-2 grams of HCl

For finding pH or pOH you need some volume of solvent,cause pH=-log[H+], and [H+] is concentration, it is how many mol is in 1L

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In the reaction, 150. g of ammonia (NH<sub>3</sub>) were reacted with 150. g of oxygen (O<sub>2</sub>) to produce nitrogen monoxide (NO). How much nitrogen monoxide would be produced?

Mass of Nitrogen monoxide =73.5g

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When 40 grams of ammonium nitrate explode 14 grams of nitrogen and 8 grams of oxygen are formed. How many grams of water are formed?

You can calculate this by such reaction: NH₄NO₃ --gt; N₂ + frac12;O₂ + 2H₂O ==gt; 2NH₄NO₃ --gt; 2N₂ + O₂ + 4H₂O The law of conservation of mass solves this...

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1) How many moles of carbon monoxide would be required to react with 3.24 moles of iron (III) oxide? Fe<sub>2</sub>O<sub>3</sub>(s)+ 3 CO(g) 🡪 2 Fe(g) + 3 CO<sub>2</sub>(g)

Solution:The balanced chemical equation:Fe2O3(s) + 3CO(g) → 2Fe(g) + 3CO2(g)According to the equation above: n(Fe2O3) = n(CO)/3n(CO) = 3 × n(Fe2O3) = 3 × 3.24 mol = 9.72 moln(CO) = 9.72 molAnswer:...

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What is the mass percent composition of manganese and oxygen in the oxide? Given: 3.144g of manganese reacts with oxygen to produce 6.348g of manganese oxide.

3,144 gr 6,348 gr xMn + yO =˃ MnxOy 55x 55x +16y 3,144×(55x+16y)=6,348 × 55x 172,92 x + 50,304y = 349,14x 50,304y=176,22x y=3,5x x=2 y=7 Answer: Mn2O7

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In the reaction 4Al(s)+3O2(g)-&gt; Al2O3(s) A. How many moles of oxygen react with 5.5 miles of Al? B. How many moles of Al2O3 can be produced from 5.5 moles of Al?

A. 4,125B. 1,375

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How many moles of oxygen are produced when 756 grams of lead 11 oxide are formed Find the mass of nitrogen dioxide that forms with 0.58 moles of oxygen

1) 2 Pb + O2 = 2 PbOthe amount of PbO is 756 g / 223.2 g/mole = 3.38 mole, it is twice of moles of O2, i.e.the amount of...

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If 7.0 moles of nh3 reacts with 14 moles of o2, how many moles of no2 will be produced? Calculate how many moles of excess reactant will remain

4NH3 + 7O2 = 4NO2 + 6H2OAccording to the equation NH3 reacts completely, O2 is in the excess.7 mol of NO2 will be produced.According to the equation 7mol*7/4 = 12....

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When 23 grams of methane gas combine with 42 grams of oxygen, 37 grams of water form, plus carbon dioxide. What mass of carbon dioxide is produced?

CH4(g) + 2 O2 (g) = CO2(g) + 2 H2O (g)1 : 2 : 1 : 223g : 42g : ? : 37g Therefore : ( 23/42) =0.5 moles 1...

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-Hexane (C6H14) is being used as a fuel. The Moles of Oxygen required for complete combustion of 1 Mole of the fuel is: Select one: a. 9.5 moles b. 10.25 moles c. 10 moles d. None of the above

C6H14+9.5O2=6CO2 +7H2OAnswer a - 9.5 mole

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