MISSED THIS? Watch KCV: Mixtures of Gases and Partial Pressures, IWE: Total Pressure and Partial Pressures; Read Section 6.6. You can click on the Review link to access the section in your eText. A gas mixture contains each of the following gases at the indicated partial pressures: N₂, 129 torr ; O2, 287 torr; and He, 172 torr. ▼ ✔ Correct According to Dalton's law of partial pressures, the total pressure of a mixture of gases is the sum of the pressures of the individual gases in the mixture. Use the given partial pressures of each of the gases to calculate the total pressure. PTotal Part B = ▶ = PN₂ + PO₂ + PHe 129 torr + 287 torr +172 torr = 588 torr What mass of each gas is present in a 1.00L sample of this mixture at 25.0°C? Enter your answers in grams to three significant figures separated by commas. View Available Hint(s) Hint 1. Rearrange the ideal gas law to solve for moles Hint 2. Calculate the number of moles of \rm N_2 gas mN₂, mo₂, mHe= VE ΑΣΦ Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining P Pearson Pwww. ? g

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.