3 years ago

How many moles are in 4.99x1032 molecules of H2o

Chemistry

1 answer:

bogdanovich [222]3 years ago

5 0

Answer:

n≈8,29×10⁸ moles

Explanation:

Nᴀ=6.02×10²³ (constant)

n=N/Nᴀ=

$= \frac{ {4.99 \times 10}^{32} }{6.02 \times 10 ^{23} } = 828903654$

≈8,29×10⁸ moles

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Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is MHz. [speed of light

Volgvan

Answer:

50 MHz

Explanation:

The relation between frequency and wavelength is shown below as:

$c=frequency\times Wavelength$

c is the speed of light having value $3\times 10^8\ m/s$

Given, Wavelength = 6 m

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$Frequency=\frac{c}{Wavelength}$

$Frequency=\frac{3\times 10^8}{6}\ Hz$

$Frequency=50\times 10^{6}\ Hz$

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3 years ago

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Answer:

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almond37 [142]

Answer:

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3 years ago

When 6.0 mol Al react with 13 mol HCl, what is the limiting reactant, and how many moles of H2 can be formed? 2Al + 6HCl → 2AlCl

4vir4ik [10]

Well, we need to find the ratio of Al to the other reactant.

Al:HCl = 1:3

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The ratio of HCl:AlCl = 3:1

13/3 = 4.3333...

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Hope this helps!!! :)

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ololo11 [35]

Third choice because the others make no sense

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