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Lina20 [59]
4 years ago
14

How did thomsons experiment changes daltons atomic model

Chemistry
2 answers:
podryga [215]4 years ago
5 0

Thomson's experiments with cathode ray tubes helped him to discover the electron (which Dalton did not know about). Dalton thought that atoms were indivisible particles, and Thomson's discovery of the electron proved the existence of subatomic particles.

cupoosta [38]4 years ago
4 0

thomson discovered that the atom contained smaller particles called electrons - Apex

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What is the molar mass of (NH4)2 CO3
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Self value and rational thinking.

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What mass of CO2 would be needed to weigh out to make 10.5 moles of carbon dioxide? (round answer to nearest tenth)
melamori03 [73]

The mass of carbon dioxide that would be needed to weigh is 462 grams.

Given:

10.5 moles of carbon dioxide.

The periodic table

To find:

The mass of carbon dioxide would be needed to weigh out to make 10.5 moles of carbon dioxide.

Solution:

Mass of carbon dioxide needed = m

Moles of carbon dioxide needed = 10.5 mol

The molar mass of carbon dioxide = M

The atomic mass of carbon atom = 12.011 g/mol

The atomic mass of oxygen atom = 15.999 g/mol

M = 1\times 12.011 g/mol+2\times 15.999 g/mol\\\\=44.009 g/mol

The moles of carbon dioxide will be given as:

10.5 mol=\frac{m}{44.009 g/mol}\\\\m=10.5 mol\times 44.009 g/mol=462.0945 g\approx 462 g

The mass of carbon dioxide that would be needed to weigh is 462 grams.

Learn more about the moles of substance here:

brainly.com/question/2293005?referrer=searchResults

brainly.com/question/1445383?referrer=searchResults

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3 years ago
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