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3 years ago

How many significant figures are in the measurement 40,500 mg?

Chemistry

1 answer:

schepotkina [342]3 years ago

3 0

b) three

this is because all integers are sig figs, and all numbers between integers are sig figs. This makes the 40,5 part of 40,500 significant. Place holder zeroes that are not after a decimal are not significant, so the last two zeroes of the number are not significant.

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The metal that will react is Cobalt.

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1 year ago

An unknown gas effuses 2. 165 times faster than xe. what is the molar mass of the gas? show the set up and answer with unit

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sqrt(M(b)/M) = R(a)/R(b) (a)

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square root = sqrt

the molar mass, M

In response to your query, if gas (a) is the unknown gas and Xe(M = 131 g/mol) is the second gas, we have:

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1 year ago

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sveticcg [70]

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3 years ago

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tigry1 [53]

Answser: a curved line.

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See the figure attached to visualize the form of the curve.

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