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Gre4nikov [31]
3 years ago
12

A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is

Chemistry
1 answer:
Kamila [148]3 years ago
8 0
That's what I was thinking. I wasn't sure if we were precisely interested in finding the molecule's width as well (which I didn't know how to do but had a vague idea of how we might accomplish it). If this is just for unit conversions though, your answer seems sufficient. You just need to convert nanometers to millimeters.
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Which property of fossil fuel make them an important resource for life on earth
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Fossil Fuels give off energy when they are burned

One valuable fossil fuel is natural gas.  It is a cleaner-burning fuel source.

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The reaction between an organic acid and an alcohol produces
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If it’s a carboxylic acid with an alcohol then it’ll form an ester and water.
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Which of the following gives the molarity of a 17.0% by mass solution of sodium acetate, CH 3COONa (molar mass = 82.0 g/mol) in
weeeeeb [17]

Answer:

The molarity of this solution is 2.26 M (option D)

Explanation:

Step 1: Data given

Mass % = 17%

Molar mass of CH3COONa = 82.0 g/mol

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Step 2:

Assume the mass of the solution is 1.00 gram

⇒ 17.0 % CH3COONa = 0.17 grams

⇒ 83.0 % H2O = 0.83 grams

Step 3:

Density = 1.09 g/mL

Volume of the solution = total mass / density of solution

Volume of solution : 1.00 grams / 1.09 g/mL

Volume of the solution = 0.917 mL = 0.000917 L

Step 4: Calculate  number of moles of CH3COONa

Number of moles = Mass / molar mass

Number of moles CH3COONa = 0.170 grams / 82.0 g/mol

Number of moles = CH3COONa = 0.00207 moles

Step 5: Calculate molarity

Molarity = moles / volume

Molarity solution =   0.00207 / 0.000917 L

Molarity solution =  2.26 mol/L = 2.26 M

The molarity of this solution is 2.26 M (option D)

6 0
3 years ago
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volume of solution = 325 ml

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Thus the mass percent by volume is 101.6%

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Microgravity is your answer
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