75-Archetype DashboardARCH-C-04 • C4
150s Classroom → 40s Sub-90 Target27-Q Chemistry Mock
Archetype Sub-90 Dry-Wipe Invariant (Molar Gas Volume (24 dm^3 at rtp), Ideal Gas Scaling, Percentage Yield & Atom Economy): Memorise: 1 mol gas at rtp = 24 dm³ = 24,000 cm³, so 1 mmol gas = 24 cm³. Atom economy depends purely on the balanced equation (desired M_r / total reactant M_r), independent of experimental yield.
sub90 ESAT Stopwatch Emblemsub90 ESAT
ARCH-C-04: Molar Gas Volume (24 dm^3 at rtp), Ideal Gas Scaling, Percentage Yield & Atom EconomyChemistry
00:00.0
SUB-90 ZONE (<35S)
0.0s35s Sub-9090s ESAT Budget150s Classroom
Question 1 of 36ARCH-C-04 (6-Card Lesson)Format: Standard 5-Option
Right-click any option to cross out • Keys A–E + Enter
Question 1 of 36 • 90s Target

Ready to Start Question 1?

The question stem, diagram, and answer options are hidden behind this pre-start gate. When you click below, the question will reveal and your 90-second split stopwatch will immediately begin ticking.

Chemistry•ARCH-C-04•Standard 5-Option
or press Enter to start