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Calculate the density of hydrogen bromide (HBr) gas in grams per liter at $733 \mathrm{mmHg}$ and $46^{\circ} \mathrm{C}$.

$$3.0 \mathrm{g} / \mathrm{L}$$

Chemistry 101

Chapter 5

Gases

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Lectures

05:03

In physics, a gas is one of the three major states of matter (the others being liquid and solid). A gas is a fluid that does not support tensile stress, meaning that it is compressible. The word gas is a neologism first used by the early 17th-century Flemish chemist J.B. van Helmont, based on the Greek word ("chaos"), the simplest of all the elemental forms of matter.

04:46

In physics, thermodynamics is the science of energy and its transformations. The three laws of thermodynamics state that energy can be exchanged between physical systems as heat and work; that the total energy of a system can be calculated by adding up all forms of energy in the system; that energy spontaneously flows from being localized to becoming dispersed, spread out, or uniform; and that the entropy of an isolated system not in equilibrium will tend to increase over time, approaching a maximum value at equilibrium.

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in this question. You know that density is equals to mass over volume, and then, you know, number off mole is equals to mass over molar mass, right? And also, you know that the idea guest, Lois PV, equals two and r t. So from the question of the only information you know as the Kreisher, which is 733 and did temperature, which is 46 degrees Celsius. So you don't have any mass involved. So you have to You DeVivo there's this formula, whoever's back to p and t So you need to change this formula. Well, p and t So we start from here, so PV equals nrt so and can be changed too mass over morning mass so PV can be right into mass over Mona mass times are nt. Okay, So with we bring the am to the rice, I read to the laughs I So you will have something like mass over volume Times are tee and this size pressure times molar mass. Okay, as you see there is is actually density. So we want we want to isolate that. So we further bring this to the next site. So you will have P. Times Morning mass Divided by tamp Uh, constant and temperature you closed to And mass divided by volume, which is density. Sudan City is actually equals today's. So now you can do the calculation, right? You have to pressure the molar mass. The molar mass off HBR IHS Wong plus 79 one night. So which is anti tonight? Roughly. Yeah. Any point night. So you have Mowlam as you have pressures, you have temperature. Now you can just pluck it back to the equation and then fine density eso. After you put everything back into the equation, you should get 3.0.

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