alleryStart learning →A recipe uses 1 cup mix, three quarters of a cup of milk and one egg for eight pancakes. How many eggs give 24 pancakes?
ATwo eggs are needed
BFour eggs are needed
CEight eggs are needed
DThree eggs are needed
Answer & Solution
Correct answer: D. Three eggs are needed
1. The recipe fixes a ratio of 1 egg per 8 pancakes.
2. Multiply the target amount by that ratio: 24 pancakes times 1 egg per 8 pancakes.
3. The pancake units cancel, leaving 24 divided by 8, which is 3 eggs.
4. Balanced equations are used in exactly this way, with coefficients in place of recipe amounts.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 4 "Stoichiometry of Chemical Reactions", section 4.3 Reaction Stoichiometry_
Keep practising Stoichiometry of Chemical Reactions
Browse all Stoichiometry of Chemical Reactions questions for NECO SSCE, or explore more Chemistry topics.
Related questions
Pop only the soluble compoundsKnock out the false limiting claimsFill in the percent yield formulaOrder the mass to mass routeBalance the splitting of waterIn the old vinegar test, potassium carbonate was added until bubbling stopped. What gas caBurning 0.00126 g of polyethylene gives 0.00394 g CO2 (44.01 g/mol) and 0.00161 g H2O (18.A 0.4550 g mixture treated with excess Ba(NO3)2 gives 0.6168 g of BaSO4 (233.43 g/mol). Wh