Prepare 1500 ml of 5.0 m h2so4 from a stock h2so4 which is 80% pure and a s. g of 1.018

To solve this we use the equation,

 M1V1 = M2V2

 where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.

M1 = .80 g H2SO4 / g solution (1018 g solution / L solution ) (1 mol / 98.08) = 8.30 M

8.30 (V1) = (5.0 M) (1.5 L)

V1 = 0.9036 L or 903.6 mL of the stock needed

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

51-50

step-by-step explanation: