Calculations Involving Gases (VCE SSCE Chemistry): Flashcards

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Calculations Involving Gases
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Stoichiometry definition

Study of quantitative relationships in reactions

Three gas calculation types

Mass-mass, mass-volume, volume-volume

Moles formula (nn, mm, MM)

n=mMn = \frac{m}{M}

Molar volume at SLC

24.8 L/mol

Volume at SLC formula

V=n×VmV = n \times V_m

Ideal gas equation

PV=nRTPV = nRT

°C to K conversion

Add 273

Gas constant RR (kPa units)

8.31 kPa L K1^{-1} mol1^{-1}

When volume ratios = mole ratios

Same temperature and pressure for gases

Volume-volume calculation requirements

All gases, constant T, constant P

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