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Chemistry
Solutions and Concentration
Ionic Solutions and Cations
What is the concentration of cations of a 2 molar CoCl3 solution?
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(Co^3+) = 2M
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a aqueous solution of hydrochloric acid has concentration of 37. wt % convert in concentration value to molar concentration if
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density = 1.19 g/mL. mass of 1000 mL is 1.19 g/mL x 1000 = 1190g How much of that is HCl. 37% so
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A solution of H2SO4(aq) with a molal concentration of 1.94m has a density of 1.119g/mL. What is the molar concentration of this
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Your error is that molar concn x density is NOT molality. m = moles/kg solvet = 1.94 mol/kg solvent
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A solution is prepared by dissolving 571.6 g of H 2SO4 in enough water to make 1000.0 mL of solution. The solution has a density
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571.6 g H2SO4/98.08 = mols. Put that in 1L and it's mol/L = M. Since the SOLUTION is 1000.0 mL the
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6g of impure NaOH was dissolved in 100ml of a solution.0.25molar solution of the base utilize 27.6ml of the solution containing
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To calculate the molar concentration of the acid, base, the mass of the base, and the percentage
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(a) A buffer solution is prepared by adding 0.10 liter of 2.0 molar acetic acid solution to 0.1 liter of a 1.0 molar sodium
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(a) To calculate the hydrogen ion concentration of the buffer solution, we need to use the
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a solution is prepared by dissolving 3.7500grams iron(III) oxalate in enough water to make 125.00mL of solution.
1. what is the
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a. figure the mole mass of IronIII oxalate. M=mass/molmass*1/.125 b. Look at the formual for iron
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The ionization constant of HF is 7.2 × 10−4. What is the molar concentration of H+ in a solution which is 0.353 molar in HF
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Use the HH equation.
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Given a diprotic acid, H2A, with two ionization constants of Ka1 = 4.5× 10–2 and Ka2 = 5.2× 10–7.
Calculate the pH and
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To calculate the pH and molar concentration of each protonated form for a 0.133 M solution of NaHA
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24.5 ml of water are added to a 1.20 molar solution of nitric acid. If the concentration decreases to 0.55 molar, what volume of
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We can start by setting up the equation to solve for the volume of the concentrated solution that
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(Qualitative Analysis)
I know this is vague, but if i had a solution of unknown cations that appear light purple, what could be
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Mn yes. Ag no. Cu solns could be purple (most Cu salts are colored) but I don't readily recall any
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A buffer solution is prepared by adding 0.10 liter of 2.0 molar acetic acid solution to 0.1 liter
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A buffer solution is prepared by adding 0.10 liter of 2.0 molar acetic acid solution to 0.1 liter of a 1.0 molar sodium