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7nadin3 [17]
3 years ago
6

Radio waves are primarily used to

Chemistry
1 answer:
Firlakuza [10]3 years ago
8 0

Answer:

Radio is used primarily for communications including voice, data and entertainment media.

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A florist prepares a solution of nitrogen-phosphorus fertilizer by dissolving 5.66 g of NH₄NO₃ and 4.42 g of (NH₄)₃ PO₄ in enoug
Alexandra [31]

In finding the molarity of a solution, we use the following formula:

M=moles soluteL solution

What is Molarity?

The number of moles of the solute is calculated by dividing the mass of the solute by its molar mass.

<h3 />

The molar mass of  NH4NO3 and (NH4)3PO4 are  80.043 g/mol and 149.0867 g/mol, respectively.

molesNH+4inNH4NO3=5.66 g80.043 g/mol×1molNH+41molNH4NO3=0.0707 mol

molesNH+4in(NH4)3PO4=4.42 g149.0867 g/mol×3molNH+41mol(NH4)3PO4=0.0889 mol

total molesNH+4=0.0707 mol+0.0889 mol=0.1596 mol

molesPO3−4in(NH4)3PO4=4.42 g149.0867 g/mol×1molPO3−41mol(NH4)3PO4=0.0296 mol

[NH+4]=0.1596 mol20.0 L=7.98×10−3 M NH+4

[PO3−4]=0.0296 mol20.0 L=1.48×10−3 M PO3−4

Therefore, [PO3−4]\\ has a molarity of  1.48×10−3 M PO3−

To learn more about Molarity click on the link below:

brainly.com/question/19943363

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5 0
1 year ago
What is the empirical formula of Fe?
Lera25 [3.4K]

Answer:

The ratio is 1.000 mol of iron to 1.500 mol of oxygen (Fe1O1.5). Finally, multiply the ratio by two to get the smallest possible whole number subscripts while still maintaining the correct iron-to-oxygen ratio: The empirical formula is Fe2O3.

7 0
3 years ago
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_________________________________ data are related to descriptive information that is expressed as a
ICE Princess25 [194]

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qualitative data

and

quanitative data

Explanation:

hope this helps and PLZ brainliest thank you

3 0
3 years ago
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What electrical energy converted inside a toaster?
Karolina [17]

Answer:

A. Thermal enerfy and light

Explanation:

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What is the predicted order of first ionization energies from highest to lowest for lithium (Li), sodium (Na), potassium (K), an
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U have it in the right order
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