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Sedaia [141]
3 years ago
12

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)?

Chemistry
2 answers:
Travka [436]3 years ago
7 0
That would be A.

2.5*2*10^(10-7)=5*10^3
Brut [27]3 years ago
4 0

Answer: The correct option is,

A. 5.0\times 10^3

Explanation:

Given expression,

(2.5\times 10^{10})\times (2.0\times 10^{-7})

=2.5\times 2.0\times 10^{10-7}

( By using product property of exponent i.e. a^m\times a^n = a^{m+n} )

=5.0\times 10^3

Therefore,

OPTION A is correct.

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Answer:

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Explanation:

Use the Ideal Gas Law, PV = nRT.

Make sure to use the correct ideal gas constant R. You can either put R in torr, or you can change the pressure to atm. I've just used the torr ideal gas constant.

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The molar mass of neon (remember that neon gas = Ne, it's not diatomic) is 20.18 g/mol from the periodic table.

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Contents Home Courses University of California Davis UCD Chem 2C: General Chemistry III UCD Chem 2C: Larsen Text Unit 4: Chemical Kinetics Expand/collapse global location

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Last updatedSep 3, 2020

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Learning Objectives

Molecules must collide in order to react.

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