1 attempts left Check my work Enter your answer in the provided box. Calculate the density of air at exactly 25°C and 1.00 atm. (Assume that air is 80.0 percent N and 20.0 percent O2.) 1.2388 g/L

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A: Applying formula  V1/T1= V2/T1

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A: To solve this problem we will use the formula of combined gas law . Which is given as  P1V1/T1 =…

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Q: Question 2 Which apparatus is shown here: Not yet answered Marked out of 1.00 P Flag question Select…

A: This is boiling tube

Q: 4. How would each of the following affect the calculated density of air? (These are experimenter…

A: Density of any substance is the ratio of mass to volume of substance. => Density = mass / volume

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Q: Part A If the sample is compressed to a volume of 10.9 L, what is its pressure? Express the pressure…

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Q: TReferences Use the References to access important values if needed for this question. A…

A: Given P1 = 755 mmHg V1 = 846 L T1 = 22.9°C P2 = 627 mmHg V2 = ? T2 = 7.9°C

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Q: Maps Homework 4 - Weeks 8 & 9 - Formulas and States 8/18 tasks attempted A balloon that is filled…

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Q: first pressure reading was 672 mmHg , and your second presure reading was 773 mmHg .  Your first…

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Q: Problem 1: A sample of nitrous oxide has a volume of 120 l at 1,500 mm hg and -10C.  Calculate its…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

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A: Solving only first question in accordance with guidelines.

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A: V1 = 1.50 L T1 = 20.0°C T2 = 36.0° F  In °C, T2 = ( 36°F − 32) × 5/9 = 2.222°C V2 = ?

Q: 2 attempts left Check my work A sample of helium gas has a volume of 2.95 L at 21°C. What volume…

A: Given data, At Temperature(T1) = 21°C = (21 + 273) = 294 K, Volume of Helium gas(V1) = 2.95 L At…

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Q: 28. A 200 mL sample of a gaseous hydrocarbon has a density of 2.53 g/L at 55 degrees Celsius and 720…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Part A Calculate the density of oxygen, O2, under each of the following conditions: • STP • 1.00 atm…

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A: Density is given by the ratio of mass to its volume. Density =MassVolume

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Q: ) A flask containing 124 cm3 of hydrogen was collected under a pressure of 26.9 kPa. What pressure…

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Q: That Have I Learned So Far? A tank contains 600L of oxygen at 34 °C. What will be the final volume…

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Q: 1 attempts left Check my work Enter your answer in the provided box. At what temperature (in °C)…

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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.