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Step-by-Step Chemical Solutions

See how to solve solution chemistry problems step by step across all levels of the curriculum, from middle school to college. Topical coverage includes solution preparation, concentration, dilutions, colligative properties and more. Use Wolfram|Alpha to solve and truly understand chemical solutions.

Solution Concentration

Compute the solute concentration for various measures of concentration.

Compute the molarity of a solution step by step:

What is the molarity of 62.3 g sucrose in 250 cm^3 of water?
molarity 2.004 mg NaAlO2 in 500 ml water

Find the molality of a solution:

Compute the molality of 3.5 cmol I2 in 125.0 g carbon tetrachloride
molality of 0.385 g cholesterol in 40.0 g chloroform

Determine the mass fraction for a mixture step by step:

mass fraction of 55.507 mmoles glucose in 100.0 g water

Evaluate the amount fraction for a solution:

What is the amount fraction for 20.0 g ethanol and 2.6743x10^24 molecules water?
mole fraction of 32.0 g methyl alcohol in 90.0 g water

Colligative Properties

Investigate solution properties that depend only upon the ratio of solute to solvent particles.

Compute the boiling point elevation for a solution:

boiling point elevation i=1, m=0.22molal, Kb=1.22kg K/mol

Find the freezing point depression for a solution step by step:

freezing point depression i=1, m=5.37 mol/kg, Kf=1.86 K kg/mol

Determine the van 't Hoff factor for a solution:

van 't hoff factor alpha=1, n=2

Solution Preparation

Work out chemical solution preparation recipes.

Prepare chemical solutions step by step:

How do I make a 0.100 M solution of K3Fe(CN)6?
Prepare 2.0 mM CuSO4 from 10 mL of 5.0 mM CuSO4
Prepare 250 mL of 0.600 M KBr
prepare 2.5 mM ammonium molybdate

Dilution

Perform dilution computations and find properties of the resulting solutions.

Prepare a dilute solution step by step:

dilute 0.75 L of 0.250 M KOH with 2.00 L of water
dilute Vi = 25.0 mL, Ci = 2.19M, Vf=72.8 mL
dilution Vf=250.0 mL, Cf=0.100 M, Ci=1.00 M

Solution Properties

Explore properties of different solutions that depend on the solvent, solute and concentration.

Convert between density and concentration for a single-component solution:

convert density to concentration M=35 g/mol, rho=2 g/mL
convert concentration to density c=15uM, M=26 g/mol

Compute the density step by step:

m=28.45g, V=25 mL, mass density

Find the anti-knock index for gasoline:

antiknock index RON=90, MON=75

相关示例

  • Chemical Ions
  • Chemical Solutions

    • Acids & Bases

    Analyze acidic and basic solutions.

    Compute the pKa:

    pKa Ka=4.9x10^-10

    Titrate a strong acid or base:

    strong acid base titration Va=15 mL, [H+]=3 dM, [OH-]=5 cM

    Calculate the pH of a buffer step by step:

    Henderson Hasselbalch Ka=1.4x10^-4, [A-]=1 dM, [HA]=0.12 M
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