A student measures the time taken for 2.0 g of magnesium to dissolve in $50 \mathrm{~cm}^{3}$ of dilute sulfuric acid. Which apparatus is essential to complete the experiment? I. stop-clock II. measuring cylinder III. thermometer IV. balance
Explanation
To measure the time taken for 2.0 g of magnesium to dissolve in 50 cm^3 of dilute sulfuric acid, a student needs to accurately measure the mass of magnesium (using a balance), measure the volume of the acid (using a measuring cylinder), and record the time taken for the reaction to occur (using a stop-clock).
⬆ Related Topic
📘 Syllabus
View IGCSE Class 10 Syllabus →
📝 Practice Questions
Practice Previous Year Questions →
🤖 Practice with AI
Generate Practice Question Paper →