Create a Daniell cell given the following cell notation: Pb/Pb(NO3)2//Ca/Ca(NO3)2

Md Ariful Islam

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It is necessary to take 2 tanks, connect them with salt bridges from KCl. In the first you need to pour a solution of lead nitrate and lower the lead rod. In the second you need to pour a solution of calcium nitrate and lower the rod of calcium. Connect the rods with a wire. This is ideally, in reality, calcium will interact with water, so you need to take a non-aqueous solvent.
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The equation below represents an equilibrium reaction HNO3(aq) + NH3(aq) ↔ NO3- (aq) + NH4+(aq). Which chemical in the forward reaction is a Bronsted-Lowry acid? * A. HNO3 B. NH3 C. NO3- D. NH4+

A. HNO3

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X cm³ of 0.15 mol dm³ zinc nitrate solution Zn(NO3)2 is pipetted into a 500 cm³ volumetric flask to produce 500 cm³ of 0.018 mol dm³ zinc nitrate solution. Zn(NO3)2. Determine the value of X.

Molar mass of Zinc nitrate = 189.36 189.36 × 0.018 =3.41×10 = 34.1= 500× 0.15/34.1= 2.2cm3

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Assuming an efficiency of 40.30%, calculate the actual yield of magnesium nitrate formed from 135.8 g of magnesium and excess copper(II) nitrate Mg + Cu(NO3)2 = Cu + Mg(NO3)2

Actual Yield =216.43g

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please help me balance these equations 1. Zn(s) + NO3−(aq) = Zn2+(aq) + NH3(aq) 2. CuS(s) + NO3−(aq) = Cu2+(aq) + S(s) + NO(g)

1. 4Zn(s) + NO3-(aq) + 6H+(aq) -> 4Zn2+(aq) + NH3 + 3OH-(aq)2.3Cu(s) + 2NO3-(aq) + 8H+ (aq)-> 3Cu2+(aq)+2NO + 3S + 4H2O

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A solution contains 12.6 ppm of dissolved Ca(NO3)2. Calculate the concentration of NO3  in moles per litre. (4)

Solution:Each mol of Ca(NO3)2 (MM 164.088) contains 2 mol NO3- (MM 62.005),so the fraction of mass that is nitrate (NO3-) is:(2 mol NO3- / 1 mol Ca(NO3)2) × (62.005 g...

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write the corresponding half reaction for (a) Ca(s) + Cu(NO3)2(aq) → Cu(s) + Ca(NO3)2(aq) (b) Zn(s) + Ni<sup>2+</sup> → Ni(s) + Zn<sup>2+</sup>

Solution:(a) Ca(s) + Cu(NO3)2(aq) → Cu(s) + Ca(NO3)2(aq)_______________________________________________Ca(s) − 2e- → Ca2+(aq) (oxidation half-reaction)Cu2+(aq) + 2e- → Cu(s) (reduction half-reaction)----------------------------------------------------------------------------Ca(s) + Cu2+(aq) → Ca2+(aq) + Cu(s)(b) Zn(s) + Ni2+ → Ni(s) +...

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Use the following equation: Pb(SO4)2 + 4 LINO3 → Pb(NO3)2 + 2LI2SO4 How many moles of LINO3 are needed to make 6.34 mol of Pb(NO3)4?

25.36 moles

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AI(s) | AI(NO3)3(aq) | | Cd(NO3)3(aq) | Cd(s) Write an equation for the half reaction occurring at the anode and cathode . Calculate the cell potential

Al0 -3e- = Al3+ Cd2+ + 2e- = Cd0E0cell=E0red−E0oxid.

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Given the following reaction: CaCl2 (aq) + 2AgNO3(aq) Ca(NO3)2(aq) + 2agCI(s) How many moles of Ca (NO3)2 be produced by 9 moles of CaCI2?

CaCl2 (aq) + 2AgNO3(aq) = Ca(NO3)2(aq) + 2АgCI(s)Based on the chemical reaction equation, the ratio of CaCl2 to Ca(NO3)2 will be 1: 1 (1 mole of calcium chloride will give...

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build a volatic cell 1 beaker NI(NO3)2 with electrode second beaker ZnCl2 with electrodes. what is the half reaction, flow of electrodes, shrt form notation, voltage.

Anode = Zn = Zn2+ + 2e .Cathode = Ni2+ + 2e = Ni .Electron flow from Anode to Cathode .Current Flow from Cathode to Anode .

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