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3 years ago

From his experiments ,j.j Thomson concludes what?

Chemistry

2 answers:

Vladimir [108]3 years ago

7 0

Answer:

Thomson made the following conclusions: The cathode ray is composed of negatively-charged particles. The particles must exist as part of the atom, since the mass of each particle is only ∼ 20001start fraction, 1, divided by, 2000, end fraction the mass of a hydrogen atom.

Explanation:

Andrews [41]3 years ago

4 0

Answer:

J J Thomson's experiment confirms the existence of corpuscles (electrons), by concluding that: cathode rays are charges of negative electricity carried by particles of matter.

Explanation:

J J Thomson's experiment with cathode ray tubes helped him to discover the electron (which Dalton did not know about).

Cathode ray is composed of negatively-charged particles. And these particles must exist as part of the atom, since the mass of each particle is only ∼ 20001start fraction, 1, divided by, 2000, end fraction the mass of a hydrogen atom. And also, that the particles that made up the gases were universal.

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Answer:

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Explanation:

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3 years ago

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A chemist must prepare 300.0mL of nitric acid solution with a pH of 0.70 at 25°C. He will do this in three steps: Fill a 300.0mL

d1i1m1o1n [39]

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Explanation:

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Putting values in above equation, we get:

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To calculate the volume of the concentrated solution, we use the equation:

$M_1V_1=M_2V_2$

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$M_2\text{ and }V_2$ are the molarity and volume of diluted nitric acid solution

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$7.0\times V_1=0.199\times 350.0\\\\V_1=\frac{0.199\times 350}{7.0}=9.95mL$

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