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Copper reacts with chlorine to form two compounds. Compound A consists of 4.08 g of copper for every 2.28 g of chlorine. How much copper is needed to combine with 1 g of chlorine in compound A?
4.08=2.28?= 1= 4.08/2.28= 1.79g
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Assume 100.00 g of the compound what is the mass of each element in 100.00 g of compound what are the moles of each element in 100.00 g of compound.
Since the identity of the substance in question is not given, I will use a substance such as Sodium carbonate, Na2CO3 to demonstrate how the question can be answered.Using RAM...
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Will the following reaction occur spontaneously at 25°C, given that [Fe2+] = 0.60 M and [Cd2+] = 0.010 M? Cd(s) + Fe2+(aq) → Cd2+(aq) + Fe(s)
Cd(s) + Fe2+(aq) → Cd2+(aq) + Fe(s)Oxidation: Cd → Cd2+ + 2e-Reduction: 2e- + Fe2+ → 2FeE0 = E0Fe2+/Fe - E0Cd2+/Cd = -0.44 - (-0.40) = -0.04 VE = E0...
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Write the half cell and net reaction of the given cell ; Cd(s)/Cd2+ (0.01M) // Cu2+(0.5M)/Cu. The standard reduction potentials are -0.40 V and 0.34 V respectively.
Half cell reactionCd(s)→Cd2+ +2eCu2+ +2e→Cu(s)Net reaction Cd+ + Cu2+ -->> Cd2+ + Cu+
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An element X reacts with O2 to form a compound X2O5. If 0.35g of the element forms 0.55g of the compound, what is the approximate atomic mass of the element?
Let x be atomic mass of the element X (in grams per mole). Atomic mass of O is known, it is 16. Then molar mass of the compound must be...
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balance the following redox reactions and indentify the reducing agent and oxidizing agent
Cd2+(aq) + Cu+(aq) arrow Cd(s) + Cu+2(aq)
Al3+(aq) + Co(s) arrow Al(s) + Co2+(aq)
Cd(s)+ 2cu+(aq) =Cd2+(aq) +2cu(s) .In this case,Cu is the oxidizing agent and Cd is the reducing agent.Al3+(aq) +2Co(s) =3Al(s) + Co2+(aq). Co is the reducing agent whereas Al is the...
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How many moles of carbon atoms are needed to combine with 4.87 mol Cl to form the substance C2Cl6?
Solution. x 4,872C + 3Cl2 = C2Cl6 2 3Let n(C) = xx = 4.87*2/3 = 3,247 mol.n(C) = 3,247 mol.Answer: n(C) = 3,247 mol.
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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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Write a balanced overall reaction from these unbalanced half-reactions.
In⟶In3+
Cd2+⟶Cd
In = In3+ + 3e- ×2Cd2+ + 2e- = Cd ×32In= 2In3+ + 6e-3Cd2+ + 6e- = 3CdNet equation: 2In + 3Cd2+ = 2In3+ + 3Cd
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Element G has a quarter life of 10 hours. If there are 65 grams of element G after the time equivalent to thrce the half-life, how many milligrams of element G are present initially
The half-life of a substance is the time it takes for half of the substance to decay.Initially G = 65 x 2 = 130 g =1.3 x 105 mg
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