Please solve all the problems and show the steps please You must show all your w
ID: 785924 • Letter: P
Question
Please solve all the problems and show the steps please
You must show all your work, including units, and report final results with the correct number of significant figures on all pre-lab questions, post-lab questions, and laboratory report work (this reminder will not be repeated). You should have five questions on this pre-lab assignment. Perform the following calculation and report the answer to the correct number of significant figures (assume all quantities are measured): 8.3 + 8.282 + 12.38 Perform the following calculation and report the answer to the correct number of significant figures (assume all quantities are measured): (3.8-21.3) times 2.321 Calculate the number of dm that are in 616.6 inches. Use 2.54 cm = I in and show your work. The formula for converting between the Celsius and kelvin (K) temperature scales is discussed in your text. Write the conversion formula below. Using this formula, what is the kelvin temperature corresponding to 20.99 degree C? If you have 2.0 cm3 of water, how many liters of water do you have?Explanation / Answer
1.
8.3 + 8.282 + 12.38 = 28.962
final answer will be reported with 1 decimal place. The least number of decimal place is present in 8.3 which is carried forward to final answer.
Thus
28.962 = 29.0 = 2.9 * 10
2.
(3.8 - 21.3) * 2.321 = - 40.6175
final answer will be reported with 1 decimal place. The least number of decimal place is present in 3.8 which is carried forward to final answer.
Thus
- 40.6175 = 41.0 = 4.1 * 10
3.
616.6 in = 616.6 * 2.54 cm = 1566.16 cm
1 cm = 0.1 dm
thus
1566.16 cm = 1566.16 * 0.1 dm = 156.616 = 156.6 dm
4.
T in Kelvinn = T in Celsius + 273.15
= 20.99 + 273.15 = 294.14 K
5.
1 cm^3 = 1 mL
1 L = 1000 mL = 1000 cm^3
2.0 cm^3 = 2.0 / 1000 L = 0.002 = 2.0 * 10^-3 L