Find answers to your questions and expand your knowledge with IDNLearn.com. Our community provides timely and precise responses to help you understand and solve any issue you face.

what’s the answer please

Whats The Answer Please class=

Sagot :

Answer:

5 × 10⁻³ mol

Explanation:

Step 1: Given data

  • Volume of HCl solution (V): 25 cm³
  • Molar concetration of the HCl solution (C): 0.2 mol/dm³

Step 2: Convert "V" to dm³

We will use the conversion factor 1 dm³ = 1000 cm³.

25 cm³ × 1 dm³/1000 cm³ = 0.025 dm³

Step 3: Calculate the moles of HCl (n)

We will use the definition of molarity.

C = n/V

n = C × V

n = 0.2 mol/dm³ × 0.025 dm³ = 5 × 10⁻³ mol