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Vesnalui [34]
2 years ago
7

I need help again...

Chemistry
2 answers:
dedylja [7]2 years ago
5 0
The theory of evolution
Mandarinka [93]2 years ago
3 0
The theory of evolution
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How do you determine how many molecules are in a chemical equation
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Determine the mass of substance and it's molar mass. Divide the given mass by it's molar mass to get moles and multiply time

6.002*1023 molecules 1mole

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The combustion method used to analyze for carbon and hydrogen can be adapted to give percentage N by collecting the nitrogen fro
12345 [234]

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The percentage of N in the compound is 0.5088

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Mass of compound = 8.75 mg = 8.75×1000 = 8750 g

Mass of N2 = number of moles of N2 × MW of N2 = 1.59 × 28 = 44.52 g

% of N in the compound = (mass of N2/mass of compound) × 100 = (44.52/8750) × 100 = 5.088×10^-3 × 100 = 0.5088

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3 years ago
I NEED THIS ASAP Someone please help me
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B. Four moles of water were produced from this reaction.

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I took the test and got it correct

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A single atom is in a balanced electrical state.
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