In chemistry we are doing a candle lab. one of the questions for the lab report is:
Determine how long it would take for your entrie candle to be extinguished.
the data im using is the height of the candle. before it started to burn it was 6.5cm tall. after EIGHT minutes of burning it was 2cm.
so; how long would it take for it to be completly extinguished? thanks!
2006-09-04 07:50:04 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
It took 8 minutes for it to reduce from 6.5 to 2cm,that means 4.5 cm of the candle has been burnt.Therefore the rate at which it is burning is 4.5cm/8 mins=0.5625cm/min.The time taken for 6.5cm of the candle to burn will be 6.5/0.5625=11.556 mins
2006-09-04 08:55:05 · answer #1 · answered by Albert F 2 · 0⤊ 0⤋
the answer is approx. 11.56 min. find the rate at which the candle burns by subtracting 2 cm from 6.5 to see how much was burned down in 8 min. then setting up a proportion 4.5cm/8 min =6.5 cm/ ? min. solve for the ?. I am taking a college AP Chemistry class currently and this is how you solve it.
2006-09-04 07:58:06 · answer #2 · answered by xoMadisonxo 2 · 0⤊ 0⤋