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Determine of pH of acid solutions like 0.1m hcl,0.5m hcl,0.025m hcl,0.0125m hcl by using quinhydrone and calomel electrode .compare the values of pH with theoretically calculated values.
pH = -lg [H + ]; 0.1m hcl: pH = 1; 0.5m hcl: pH = 0.3; 0.025m hcl: pH = 1.6; 0.0125m hcl: pH = 1.9.
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How will blue and red litmus paper react with neutralisation reactions and why? These are the reactions: HCl+NH3, CH3COOH+NH3, HCl+NaOH, CH3COOH+NaOH.
In this case is important as behaving in a neutralization products in water HCl + NH3 = NH4Cl NH4Cl + H2O = NH4OH (weak base) + HCl (strong acid) so...
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calculate the concentration of acetate ions in a solution that is .150M CH3COOH and .05 M HI. Ka of CH3COOH is 1.75x10^-5
V = 1L 0.05M X M HI = H+ + I- 1M 1M[H+]HI = X = 0.05M.Let Y moles of acetic acid be dissociated. Ymol Ymol YmolCH3COOH ⇄ CH3COO- + H+ 1mol 1mol 1molKa = [H+][CH3COO-]/[CH3COOH] = ([H+]HI + [H+]CH3COOH) ×[CH3COO-]/[CH3COOH] =...
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Balanced equations for the following does reaction occur thank you
Fe + HCl
Cu + HCl
Zn + HCl
Fe + HNO3
Cu + HNO3
Zn + HNO3
Fe(s) + 2HCl(aq) → FeCl2(aq) + H2(g) – reaction occurs Cu(s) + 2HCl(g) → CuCl2(s) + H2(g) – reaction occurs at 600 Celcius Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)...
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What would it look like and does a reaction occur:
Fe and HCl
Zn and HCl
Cu and HCl
Fe and HNO3
Cu and HNO3
Zn and HNO3
Iron and zinc force out hydrogen from hydrochloric acid: Fe + 2HCl → FeCl2 + H2↑ Zn + 2HCl → ZnCl2 + H2↑ Copper is among tension after hydrogen therefore...
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How many mL of concentrated HCL solution are needed to provide 90.0g of HCL? Concentrated HCL solution is 37.0% HCl by weight and has a density of 1.19 g/mL.
p =m/V 1,19 = 90/V V = 75,63 ml - it's volume of 37% HCL Need to solve a mass of full solution ( x = V(HCL)+(H2O) ), then 75,63...
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What difference in conductivity would you expect to see, if any, in the following three solutions? 10M HCL, 1M HCL, and 0.1M HCL Explain why.
10M solution will be the most conductive, 1M will be 10 times worse to conduct electricity, 0.1M will be 100 times worse to conduct electric current. When dissolved in water,...
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How many grams of hcl, hcl are required to prepare 4 L of 5M HCL in water?
At first we will count the amount of HCl:n = c * V = 5 M * 4 L = 20 mol;Now we can find out the required mass of...
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6.) A 11.5 ml solution of HCl has 0.531 g/L of HCl in solution. Calculate the concentration, amount of moles of HCl, and pH of the solution.
1)C(HCl)=0.531/36.5=0.0145 mol/L2)n(HCl)=0.531*0.0115/36.5=1.673 *10^-4 mol3)pH=-lg[H+]=-lg(1.673*10^-4)=3.78
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Complete and balance these typical acid reactions.
a). CuO(s) + HCI(aq)
b). Na2CO3(s) + HCI(aq)
c). NaOH(aq) + H3PO4(aq)
d). Ni(OH)2(aq) + CH3COOH(aq)
e). NH4HCO3(s) + CH3COOH(aq)
a). CuO(s) + 2HCI(aq) → CuCl2(s) + H2O(aq)b). Na2CO3(s) + 2HCl(aq) → H2O(aq) + CO2(g) + 2NaCl(aq)c). 3NaOH(aq) + H3PO4(aq) → Na3PO4(aq) + 3H2O(aq)d). Ni(OH)2(aq) + 2CH3COOH(aq) → Ni(CH3COO)2(aq) +...
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