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nikdorinn [45]
3 years ago
11

Many systems and technologies have been designed to communicate over long distances. They all send information that has been enc

oded into a signal. What must a receiver be able to do to understand a signal that is being sent to them?
Chemistry
2 answers:
blagie [28]3 years ago
4 0
The person above above above me is very very good awnswer hope this helps
velikii [3]3 years ago
4 0
The person above me is a very good person hope this helps.
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Which one of the following would you expect to dissolve in water? limonene sucrose oil atmospheric oxygen none of the above
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3 years ago
5) Calculate the molality of 0.210 mol of KBr dissolved in 0.075kg pure<br> water?
Margaret [11]

Answer:

\boxed {\boxed {\sf 2.8 \ m }}

Explanation:

The formula for molality is:

m=\frac{moles \ of \ solute}{kg \ of \ solvent}

There are 0.210 moles of KBr and 0.075 kilograms of pure water.

moles= 0.210 \ mol \\kilograms = 0.075 \ kg

Substitute the values into the formula.

m= \frac{ 0.210 \ mol }{0.075 \ kg}

Divide.

m= 2.8 \ mol/kg= 2.8 \ m

The molality is <u>2.8 moles per kilogram</u>

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3 years ago
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Lapatulllka [165]
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Forests are the only carbon sinks on Earth. Please select the best answer from the choices provided T F
dmitriy555 [2]
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How many atoms are there in 24 moles of Fe?
Semenov [28]

Answer: There are 145 \times 10^{23} atoms in 24 moles of Fe.

Explanation:

According to the mole concept, 1 mole of a substance contains 6.022 \times 10^{23} atoms.

Therefore, atoms present in 24 moles of Fe are calculated as follows.

24 mol \times 6.022 \times 10^{23} atoms/mol\\= 144.52 \times 10^{23} atoms\\or,  145 \times 10^{23} atoms

Thus, we can conclude that there are 145 \times 10^{23} atoms in 24 moles of Fe.

8 0
3 years ago
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