Help por favor !!#6 is the one I need help with **Educational Exercise: Gas Density and Volume Change****Question 6: Krypton Density at STP**Krypton, first discovered in samples of liquefied air, takes its name from the Greek word for "hidden," kryptos. What is the experimental STP density of krypton if 3.70 g of the gas occupies a 1013-mL flask at 25°C and 1.00 atm? (Hint: Do not use the molar mass of krypton!)**Question 7 (Optional): Volume Change of Helium Balloon**A sample of helium is sealed within a 2-L balloon at 25°C. Calculate the new volume of the helium balloon if it is submerged within a liquid nitrogen bath (78 K). Assume a constant pressure of 1.00 atm.---**Explanation:**The questions focus on understanding gas behavior under varying conditions:1. **Krypton Density**: This exercise requires calculating gas density without using the molar mass, emphasizing understanding of gas laws and their applications at standard temperature and pressure (STP).2. **Helium Balloon**: Applying Charles's Law, which relates volume and temperature changes of a gas at constant pressure, students will determine how much the helium balloon's volume decreases when cooled from 25°C to 78 K.

Since you have posted a question with multiple questions, we will solve first question for you. To get remaining questions solved please repost the complete question and mention the question to be solved. Given initial conditions: Mass of krypton = 3.70 g Volume = 1013 mL Pressure = 1.00 atm temperature = 25 or 298.15 K Final conditions at STP pressure will be 1.00 atm and temperature will be 273.15 K. Density is defined as mass per unit volume. Thus, the initial density will be calculated as follows: Density=MassVolume=3.70 g1013 mL=0.00365 g/mLd1=3.65 g/L Now, the density will be calculated as follows: P1d1T1=P2d2T2where P1, T1 and d1 are initial pressure, temperature, and densityP2, T2 and d2 are final pressure, temperature, and densityCalculating density as follows: P1d1T1=P2d2T2d2=P2d1T1T2P1=1.00×3.65×298.15273.15×1d2=3.98 g/L Thus, the density is 3.98 g/L.Answer: The experimental density at STP of krypton is 3.98 g/L.