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The following procedure was used to determine the volume of a flask. The flask was weighed dry and then filled with water. If the masses of the empty flask and filled flask were $56.12 \mathrm{g}$ and $87.39 \mathrm{g}, \mathrm{re}-$ spectively, and the density of water is $0.9976 \mathrm{g} / \mathrm{cm}^{3},$ calculate the volume of the flask in $\mathrm{cm}^{3}$.

Mass of water = Filled container - Empty Container$87.39-56.12=31.27 \mathrm{g}$the density of water is $0.9976 \mathrm{g} / \mathrm{cm} 3$Volume = Mass/Density$31.27 / 0.9976=31.34 \mathrm{cm} 3$

Chemistry 101

Chapter 1

Chemistry: The Study of Change

Intro to Chemistry

University of Central Florida

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Brown University

University of Toronto

Lectures

02:29

Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry deals with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds. Chemistry also involves understanding the properties and interactions of individual atoms and molecules for use in larger-scale applications.

04:42

In chemistry and physics, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, "matter" generally includes atoms and anything made up of them, and any particles and objects that act as if they have both rest mass and volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or sound. Matter exists in various states (known as phases) that are defined by various physical properties, such as state of matter, phase, shape, and density. The Standard Model of particle physics and the general theory of relativity describe fundamental particles and the fundamental forces acting between them that control the structure and dynamics of matter.

01:31

The following procedure wa…

01:03

06:20

An empty Erlenmeyer flask …

02:39

01:59

A container has a mass of …

06:26

A glass flask whose volume…

06:03

01:08

Calculate the volume in cu…

fine. So this question is actually pretty interesting question. They're asking you to find the volume of a flask. Um, that was first wait and then filled way dry, then filled with water. And they show you the mass of the of the empty flask versus the field flask, which is 56.12 and 87.3903 grams. And then they give you the density of water. And then they ask you to calculate the volume of the flask in the seven years cubed. So let me just outline the game plan for this question. So you have a flash that has no water, right? And then you have a flask that has water, right? Has water. Right? And they want you to just basically find the volume of the flask. Okay, So they give you both masses here. And basically what you can do is you can find the mass of the water right. By subtracting the mass of the flask with water are the mask of the flats without water from the mass mass of the flask with water. Right. If you subtract these two values and take the difference that should be the mass of the water. And then basically, after that, you can just use use the density to find the volume of the flask. And how you can do that is by the, um, mass density volume equation. So that was, um, the original creations. Mass equals density, times volume. But if you manipulate that just a little bit, you get mass over density. Equal volume. Okay, so, actually, pretty simple, but pretty interesting question allows you to think a little differently and manipulate some, um, components of the equations. So first, we need to find what the difference in the masses of the filled flask versus the empty flats. We could find the mass of the water. Right. So we're just put em water equals and filled flask minus, um, empty. Right? That makes sense, right? Because the only difference in the masses of these two things is that there's water inside. And if you could buy the difference, then we'll get the mass of the water. Right. So mass water vehicles, um, mass filled, which is 87 point 39 grams. My s 56.12 grams. And then you just put this in your calculators yet? Eighty's nine minus 56 112 She gets oh, by 56.12 to get 31 0.39 grabs. All right, this is your mass of water right now, okay? And then we can just plug this into our volume mass density equation. Okay, so we get what volume equals 31.27 grams over the density of water. 0.997 six. Right, um, grounds per centimetre. Cute. And then if he was playing this and should be pretty easy, there is 1.27 divided by is your appointment 9976 You should get 31 plus three fuck centimetres cute and noticed. Therefore, sick pigs. Because we have 46 figs in our in our initial values. Right here. Right. More sick pigs. OK, so yeah, that's basically this question. I'm pretty interesting question about you manipulate some stuff and hopefully this is helpful. And thank you for listening

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