QUESTION 24 For a gas sample, initially, the temperature was 312.68 K and the volume was 63.53 mL. The temperature was changed to 273.23 K. What is the new volume (in mL)? Round your answer to 3 significant figures. QUESTION 25
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- A helium-filled balloon has a volume of 2.97 Lat 19◦C. The volume of the balloon decreasesto 2.3 L after it is placed outside on a coldday. What is the outside temperature in K?Answer in units of K.A helium-filled balloon has a volume of 3 L at16◦C. The volume of the balloon decreases to2.31 L after it is placed outside on a cold day.What is the outside temperature in K?Answer in units of K. What is the outside temperature in ◦C?Answer in units of ◦C.A helium-filled balloon has a volume of 2.77 L at 24◦C. The volume of the balloon decreases to 2.33 L after it is placed outside on a cold day. What is the outside temperature in K? Answer in units of K.
- If F2 gas has 3.34x10^25 particles, how many liters of gas are there @ STP? round answer to 2 decimal places.If the mass of the container in the sample exercise (Figure 1.26)were measured to three decimal places before and after pumpingout the gas, could the density of the gas then be calculated tofour significant figures?a) 526 mL of oxygen gas at a temperature of 107 degrees Celsius contracts to 460 mL upon cooling. What is the new temperature in degrees Celsius? Use 273 for the conversion of Celsius to Kelvin. Do not type units in your answer. If the final answer is negative be sure to include the negative sign b) A gas in a container with a volume of 299 mL contains 0.80 moles of gas. Gas is removed from the container so that it now contains 0.29 mole of gas. What is the new volume in milliliters? c)A gas in a container with a volume of 171 mL contains 0.67 moles of gas. Gas is removed from the container so that it now contains 0.32 mole of gas. What is the new volume in milliliters?
- 18) What will the temperature of a 2100. mL sample of nitrogen at 526. mm Hg and 42.4oC be, in oC, after it changes to 1290. mm Hg and 3100. mL? Put your answer with 3 significant digits.Molly inflates a beach ball to a volume of 8 liters in her air-conditioned house where the temperature is 19 °C. Later that day, Molly takes the beach ball to the beach with some friends. The temperature at the beach was 33 °C, and the air pressure at the beach is the same as it was at the house. What will happen to Molly′s beach ball when she is at the beach? solve the problem EXACTLY like the example attached. Apply the significant figure rule to your final answer. The final answer should have one significant figure. Connect the claim and evidence with reasoning [the name and concept of the gas law you applied to solve the probland why did you choose to apply this gas law?You rent a Peugeot in Sarlot France to go see chateau Baynac. Its gas rating is 17.2 km/L. Convert this to miles per gallon using the following conversions; 1 L = 1.06 qts, 4 qts = 1 gal, 1 mile = 1.609 km. (report answer, a space, then units, miles/gallon)
- Bob conducted an experiment and found the volume for a mol of gas to be 18.7 liters. The true value for the volume was 21.8 liters. What was Bob’s percent error for this experiment? Tim dropped a ball off of a cliff, and it took 3.0 seconds for it to hit the ground. How high was the cliff?You & 3 friends decide to “road-trip” to San Francisco for a 3-day weekend. It’s about 320 miles round-trip (mi./trip) andyour psychedelic VW bus gets 15-mpg (mi./gal.). With gas at about $2.75 per gallon (dollars/gal.), how much gas money should each of you bring(dollars/person)?How many moles of O2 gas are contained in 53 L of O2? Hint: 1 mole = 22.4 L of gas. So, use the conversion factor 1 mole /22.4 L. Example of how a dimensional analysis problem should look is attached. Use the conversion factor above. Use the correct orientation of the conversion factor in the dimensional analysis setup. Consult to the significant figure rule to write the final answer.