Answered Apr 23, 2024
Molecular Weight of CuCl2 = 134 gm/mole
If 134 gm of CuCl2 is dissolve in 1000ml i.e 1L soution then the molarity of the solution is 1M
Therefore using unitary method the molarity of the solution is =
= (92*1)/(194*1.6)M
=0.3 M
Molarity of a solution=0.866M
Molar mass of NaOH=39.997=50/39.997= 1.25moles= 1.25/0.1= 12.5mol/L
percent v/v is (mL ethanol/mL solution)×100.So you have 25.0 mL ethanol/250 mL(25/250)×100 = 10% v/v.
100-0.92= 99.0899.08/100×100= 99.08%
Molecular weight of isotonic saline = 58.50.92×58.5 = 53.8253.92/100×100= 53.92%
250 ml × 0.4 = 100ml= 100/2 = 50mlMolar mass of sodium hydrogen carbonate = 84.007Molarity = 111/84.007 = 1.32 mol1.32/20= 0.066mol/L
The solution is 74.7% pure.
molarity = amount / liter amount n = m/Mw m-mass Mw - molecular mass in the question m = 78.6 g Mw = 58.1 g/mol n = 78.6/58.1 = 1.35...
Answer on Question #99054 – Chemistry – OtherTask:Calculate the [H3O+], [OH-], pH, and pOH for a solution prepared by dissolving 3.1g KOH(s) (FW=56 g/mol) unto enough water to give a...
1. CuSO4(aq) + CuCl2(aq) -----> no reaction Cu2+(aq) + SO42-(aq) + Cu2+(aq) + 2Cl-(aq) -----> no reaction 2. CuCl2(aq) + KCl(aq)-----> no reaction Cu2+(aq) + 2Cl-(aq) + K+(aq) + Cl-(aq)...
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