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DerKrebs [107]
3 years ago
6

Which of the following is equal to Avogadro's number?​

Chemistry
1 answer:
saveliy_v [14]3 years ago
5 0

Answer:

2.1.4.5 ang sagot jan charot lmg

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balandron [24]
I think the answer is 1.25 grams actually i think i’m wrong
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I need help with this some people say they know D is right giving brainliest if u get it right TWO ANSWERS
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I think its D. and A hopefully that's right

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What are some of the most common "chemicals" you use around your home on a daily basis? And what do you use those chemicals for?
elena55 [62]

Answer:

You use Bleach, Dimethyl Ammonium Chloride, Sodium Nitrite, Ethyl benzyl Ammonium Chloride, Lemon citrus, Baking soda, ETC

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You use these in some of your cleaning supplies and home-made remedies.

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3 years ago
One mole of an ideal gas is contained in a cylinder with a movable piston. The temperature is constant at 77°C. Weights are remo
frozen [14]

Answer:

The total work is 4957.45J

Explanation:

For an ideal gas, at constant temperature the definition of work (W) is

W = - P.dV = - n.R.T \int\limits^i_f {\frac{dV}{V} \\W = - n.R.T. Ln (\frac{V_{f}}{V_{I}})\\W = - n.R.T. Ln (\frac{P_{i}}{P_{f}})

where P is the pressure, V the volume, n the moles number, T the temperature and R the gas constant.

To solve the problem is necessary to replace the two steps in the equation

Stape 1: n  = 1 mol, R = 0.082atm.L/K.mol, T = 77ºC = 350K, Pi = 5.50atm and Pf = 2.43atm.

W_{1} = - 1molx0.082\frac{atm.L}{K.mol}x350KxLn (\frac{5.50atm}{2.43atm}) = 23.44atm.Lx101.325\frac{J}{atm.L} =2375.44J

Stape 2: n  = 1 mol, R = 0.082atm.L/K.mol, T = 77ºC = 350K, Pi = 2.43atm and Pf = 1.00atm.

W_{2} = - 1molx0.082\frac{atm.L}{K.mol}x350KxLn (\frac{2.43atm}{1.00atm}) = 25.48atm.Lx101.325\frac{J}{atm.L} =2582.01J

The total work is the sum of the two steps

W = W_{1} + W_{2} = 2375.44J + 2582.01J = 4957.45J

4 0
3 years ago
Which of the following is the best definition of ethics?
Andrej [43]

Answer:

C

Explanation:

I believe the answer is C.

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3 years ago
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