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3 years ago

HELP ASAP PLS! How many grams are present in 0.0567 mol C2H6 ?

Chemistry

1 answer:

julia-pushkina [17]3 years ago

3 0

Mass of substance in grams 60.1

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An object has a volume of 2 milliliters and a mass of 10 grams, calculate the density of the object

MArishka [77]

5000 kilogram/cubic meter

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4 years ago

At 35.0°c and 3.00 atm pressure, a gas has a volume of 1.40 l. what pressure does the gas have at 0.00°c and a volume of 0.950 l

Leona [35]

Answer : The pressure of gas will be, 3.918 atm and the combined gas law is used for this problem.

Solution :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas = 3 atm

$P_2$ = final pressure of gas = ?

$V_1$ = initial volume of gas = 1.40 L

$V_2$ = final volume of gas = 0.950 L

$T_1$ = initial temperature of gas = $35^oC=273+35=308K$

$T_2$ = final temperature of gas = $0^oC=273+0=273K$

Now put all the given values in the above equation, we get the final pressure of gas.

$\frac{3atm\times 1.40L}{308K}=\frac{P_2\times 0.950L}{273K}$

$P_2=3.918atm$

Therefore, the pressure of gas will be, 3.918 atm and the combined gas law is used for this problem.

4 0

3 years ago

Read 2 more answers

Choose the molecule with the strongest internal bond, (intra-, not intermolecular bond)

Verdich [7]

Answer:

Explanation:

The molecule with the strongest intramolecular bond is HF. Hydrogen fluoride is the answer due to the strong and highly electronegative nature of Fluorine.

Fluorine is the most electronegative element in nature.
When it combines with other substances, due to its electronegative property, it draws most of the electrons closest to itself in the bond.
This tendency and ability makes the shared electrons closer the fluorine in the bond.
The strong polarization that ensues confers a very strong covalent bond pair on the bond formed.

6 0

3 years ago

The question is below

rodikova [14]

The anode is the electrode where the oxidation occurs.

Cathode is the electrode where the reducction occurs.

Equations:

Mn(2+) + 2e- ---> Mn(s) Eo = - 1.18 V
2Fe(3+) + 2e- ----> 2 Fe(2+) 2Eo = + 1.54 V

The electrons flow from the electrode with the lower Eo to the electrode with the higher Eo yielding to a positive voltage.

Eo = 1.54 V - (- 1.18) = 1.54 + 1.18 = 2.72

Answer: 2.72 V

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3 years ago

Find the mass in grams of 0.75 moles of magnesium (Mg).

Lady bird [3.3K]

Answer:

18.22874999999973

I recommend you to round the nearest 1 d.p

Explanation:

have a great day!

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3 years ago

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