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inn [45]
3 years ago
12

Which statement describes the differences between nuclear reactions and chemical reactions?

Chemistry
1 answer:
bearhunter [10]3 years ago
6 0
Chemical reactions are a change in substance while nuclear is destruction
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A 4.7-L sealed bottle containing 0.33 g of liquid ethanol,C₂H₆O, is placed in a refrigerator and reaches equilibrium with its va
Mama L [17]

The mass of ethanol present in the vapor is 8.8×10⁻²g. when liquid and vapor ethanol at equilibrium.

The volume of the bottle = 4.7 L

Mass of ethanol = 0.33 g

Temperature (T1) = -11 oC = 273-11 = 262 K

P1 = 6.65 torr

Now we will calculate the mole by applying the ideal gas equation:-

PV = nRT

Or, n = PV/RT

Where P is the pressure

 T is the temperature

 R is the gas constant = 0.0821 L atm mol-1K-1

 V is the volume

Substituting the values of P, V, T, and R the mole of ethanol is calculated as:-

  = 0.001913 mol C2H6

Conversion of the mole to gm

Molar mass of ethanol (M) = 46.07 g/mol

Mass of C2H6O =0.001913 mol C2H6O 46.07 g/mol = 0.088 =  8.8×10⁻²g.

Hence, the mass of ethanol present in the vapor is found to be  8.8×10⁻²g.

Learn more about mole here:-brainly.com/question/15374113

#SPJ4

8 0
1 year ago
Elements may have similar properties and we can use the periodic table to help us determine what they are. These three elements
Reil [10]
They don’t have the Noble gases
8 0
3 years ago
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A compound is 53.31% c, 11.18% h, and 35.51% o by mass. what is its empirical formula?
Alexus [3.1K]
<span>Your final answer would be C4H10O2, which equals 90amu</span>
3 0
3 years ago
Which compound is covalently bonded? <br> Select one: <br> a. Al2O3 b. Fe2O3 c. SO2 d. CuCl2
azamat

Answer:

The answer is D-CuCl2

I hope this helps

7 0
3 years ago
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The temperature of a 500. ml sample of gas increases from 150. k to 350. k. what is the final volume of the sample of gas, if th
maw [93]
<span>pv=nrt; Pressure and moles are constant. p=nr(150k)/.5 L; Pressure initially After temp change pv=nrt; What is volume? v=nr(350k)/p; p is constant so we can substitute from above v=nr(350k)/(nr(150k)/.5 L)) v=350/150/.5 L v=4.66 liters</span>
3 0
3 years ago
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