Gases and Solutions (Grade 11 NSC Matric Physical Sciences): Flashcards

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Gases and Solutions
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STP conditions (temp. & pressure)

273 K (0°C) and 101.3 kPa

Molar volume of gas at STP

22.4 dm³

Formula: gas volume at STP

Vg=22.4ngV_g = 22.4n_g

Gas volume relationship formula

VA=abVBV_A = \frac{a}{b}V_B

Stoichiometric coefficient

Number in front of substance in balanced equation

Molar concentration

Moles of solute per litre of solvent (mol·dm⁻³)

Concentration formula

C=nVC = \frac{n}{V}

Standard solution

Solution with precisely known concentration

Titration formula

CAVAa=CBVBb\frac{C_A V_A}{a} = \frac{C_B V_B}{b}

Convert cm³ to dm³

Divide by 1000

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