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torisob [31]
3 years ago
8

If Thomson was asked about Dalton's Atomic Theory, what would he say? (2+ sentences)

Chemistry
1 answer:
eduard3 years ago
7 0

"Through my own experiments, I have discovered the existence of a previously unknown subparticle-the electron. Because of this, Dalton's conclusion that atoms are indivisible particles is incorrect."

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Calculate the density of a sample of 1.00 mole of nh3 at 793mmhg and -9.00 c
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0.164 g/L is the density of a sample of 1.00 mole of NH_3 at 793mmhg and -9.00 degrees celcius.

<h3>What is density?</h3>

Density is the mass of a unit volume of a material substance. The formula for density is d = \frac{M}{V}, where d is density, M is mass, and V is volume.

Given data:

n = 1.00 mole

P=793 mm hg =1.04342 atm

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V=?

Using Ideal Gas Law equation:  

PV = n R T      

R = gas constant = 0.082057 L-atm/(mol-K)

(1.04342 atm)(V) = 5 X 0.082057 L-atm/(mol-K)  X 264 K

V = 103.67 Liters

Now calculate density:

Mole weight of NH_3 = 1.00 mole

So, the mass of NH_3 = 17.031 g

Density =  \frac{mass}{volume}  

Density =  \frac{17.031 g}{ 103.67 Liters}  

= 0.164 g/L

Hence, 0.164 g/L is the density of a sample of 1.00 mole of NH_3 at 793mmhg and -9.00 degrees celcius.

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You are walking on a beach and see a split. Explain how a split could have formed from a rocky headland.
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Explanation:

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22.99 on the element sodium means the combined numbers of electrons and protons?
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Answer:

The answer is 11 electron and 11 protons respectively

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