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blagie [28]
3 years ago
14

What is the gravitational potential energy of a 19 lbs goose flying 72 m above the earth’s surface?

Chemistry
1 answer:
wariber [46]3 years ago
6 0

Answer:

cause ree

Explanation:

hvbvnfhfjfnmsmskskakskksvdbd

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Nitrate salts (NO3), when heated, can produce nitrites (NO2) plus oxygen (O2). A sample of potassium nitrate is heated, and the
Lostsunrise [7]

Answer: a) 0.070 moles of oxygen were produced.

b) New pressure due to the oxygen gas is 2.4 atm

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 2.7 atm

V = Volume of gas = 700 ml = 0.7 L

n = number of moles = ?

R = gas constant =0.0821Latm/Kmol

T =temperature = 329 K

n=\frac{PV}{RT}

n=\frac{2.7atm\times 0.7L}{0.0821 L atm/K mol\times 329K}=0.070moles

Thus 0.070 moles of oxygen were produced.

When the 700 mL flask cools to a temperature of 293K.

PV=nRT

P=\frac{nRT}{V}

P=\frac{0.070\times 0.0821\times 293}{0.7}

P=2.4atm

The new pressure due to the oxygen gas is 2.4 atm

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From the critical reading "B. Nicholas Carr says that Google makes us stupid" reflects the strongest bias

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What are the reactants and products of a redox reaction, neutralization reactions, and precipitation reactions?
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Precipitation reactions are ones in which at least one of the reactants is in the aqueous phase (i.e., dissolved in water), and a solid forms on the product side which was not present on the reactant side. If all the reactants are solid, then a solid product forming should not be called a precipitate. To be called a precipitate, an insoluble product must form from within solution, either from a solid and solute interacting, or from an interaction strictly between solutes.

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