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Valentin [98]
3 years ago
8

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

m combustion of the compound as N2. A sample of a compound weighing 8.75 mg gave 1.59 moL N2 at 25 C and 749 mmHg. What is the percentage N in the compound
Chemistry
1 answer:
12345 [234]3 years ago
6 0

Answer:

The percentage of N in the compound is 0.5088

Explanation:

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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<h2>#CarryOnLearning USA</h2>
6 0
3 years ago
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aleksandr82 [10.1K]

Answer:

A compound containing metallic bonds.

Explanation:

8 0
3 years ago
8). How many moles of oxygen gas must be placed in a 35.0 L container in order
klemol [59]

Answer:

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Explanation:

Applying

PV = nRT................ equation 1

Where P = pressure, V = volume, n = number of moles, R = molar gas constant, T = Temperature.

make n the subject  of the equation

n = PV/RT.............. Equation 2

From the question,

Given: V = 35 L , P = 2.8 atm, T = 15 °C  = (15+273) = 288 K, R = 0.083 L.atm/K.mol

Substitute these values into equation 2

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n = 4.1 moles

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3 years ago
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Answer:

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