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Hoochie [10]
3 years ago
13

Which unit represents 100 meters?

Chemistry
2 answers:
adell [148]3 years ago
6 0

Answer:

Hectometer.

Explanation:

  • <u><em>Hecto- means 100; a hectometer is 100 meters.</em></u>
Oduvanchick [21]3 years ago
4 0
<h2>Answer:</h2>

<u>The unit represents 100 meters is called </u><u>hectometer</u>

<h2>Explanation:</h2>

The hectometer is not commonly used unit of length in the metric system. This unit is equal to one hundred metres.

The word hectometers comes from a combination of two words "metre" which is unit of length and the SI prefix "hecto-" which means "hundred".

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A 1.00 g sample of a metal X (that is known to form X ions in solution) was added to 127.9 mL of 0.5000 M sulfuric acid. After a
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<u>Answer:</u> The metal having molar mass equal to 26.95 g/mol is Aluminium

<u>Explanation:</u>

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Putting values in equation 1, we get:

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By Stoichiometry of the reaction:

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So, 0.01670 moles of NaOH will react with = \frac{1}{2}\times 0.01670=0.00835mol of sulfuric acid

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  • Calculating the moles of sulfuric acid by using equation 1, we get:

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Putting values in equation 1, we get:

0.5000M=\frac{\text{Moles of }H_2SO_4}{0.1279L}\\\\\text{Moles of }H_2SO_4=(0.5000mol/L\times 0.1279L)=0.06395mol

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2X+3H_2SO_4\rightarrow X_2(SO_4)_3+3H_2

By Stoichiometry of the reaction:

3 moles of sulfuric acid reacts with 2 moles of metal

So, 0.0556 moles of sulfuric acid will react with = \frac{2}{3}\times 0.0556=0.0371mol of metal

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Mass of metal = 1.00 g

Moles of metal = 0.0371 moles

Putting values in above equation, we get:

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