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VARVARA [1.3K]
3 years ago
11

If 21 mL of gas is subjected to a temperature change from 10.0°C to 120°C and a pressure change from 1.0 atm to 15 atm, the new

volume is: (Be sure to use the correct number of significant figures.) 1.9 mL 1.0 mL 0.53 mL 440 mL
Chemistry
1 answer:
poizon [28]3 years ago
3 0

 The  new volume is  1.9  ml


<u><em> calculation</em></u>

The new   volume  is  calculated using the   combined gas  equation

that is  P1V1/T1 = P2V2/T2  where

P1= 1.0 atm

V1= 21   ml

T1 = 10.0 c  into kelvin = 10 + 273 = 283 k

P2 = 15 atm

V2=? Ml

T2 = 120 c  into kelvin = 120 +273 = 393 K


make V2  the subject of the   formula by  multiplying  both side  by T2/P2

V2=T2P1v1 / P2T1

V2=[(393 k  x 1.0 atm  x 21  ml) / (15 atm x 283 K)]  = 1.9  Ml


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Which statement defines rate-determining step in a chemical reaction?
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What is meant when it is stated that WATER can ""Ionize"" to a certain extent? What are the products that are formed when water
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Answer:

Ionization is defined as the process by which the atoms accept or donate electrons and form positively or negatively charged species, called ions.

The ionization of water is known as the self-ionization or autoionization of water. This process involves the deprotonation of a water molecule and protonation of another water molecule to give hydroxide ion and hydronium ion, which exist in the state of chemical equilibrium.

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3 years ago
3. Where are the metals and nonmetals located on the periodic table? What are some
xxTIMURxx [149]

Metals are located on the left of the periodic table, and nonmetals are located on the upper right.

Explanation: Metals: Lustrous (shiny)

Good conductors of heat and electricity.

High melting point.

High density (heavy for their size)

Malleable (can be hammered)

Ductile (can be drawn into wires)

Usually solid at room temperature (an exception is mercury)

Opaque as a thin sheet (can't see through metals)

Nonmetals: High ionization energies.

High electronegativities.

Poor thermal conductors.

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3 0
3 years ago
2. Density is a physical property of a molecule that's measured as mass per unit volume.
spayn [35]

Answer:

A = 0.691g/cm³

B = liquid A at the bottom, liquid B in the middle and the cube at the top

Explanation:

Hello,

a)

Density = mass / volume

Density = ?

Mass = 2.331g

Volume = ?

Length of the side = 1.5cm

Volume of a cube = L³

Volume of the cube = 1.50³

Volume = 3.375cm³

Density = mass / volume

Density = 2.331 / 3.375

Density = 0.691g/cm³

b) since the question doesn't require submitting a diagram, I would go ahead and answer it without any but explaining the basics for you.

Densities:

Liquid A = 1.004g/cm³

Liquid B = 0.6223g/cm³

Cube = 0.691g/cm³

If the three substance don't mix and are place in a granulated cylinder,

Liquid A would be at the bottom

Liquid B would stay at the middle

The cube would be at the top

Reason is that, when two immiscble liquid are placed in a container, the liquid with the higher density will stay at the bottom while that of lower will float on top.

4 0
3 years ago
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