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DIA [1.3K]
3 years ago
15

The total number of valence electrons in a molecule of sof2 is ________.

Chemistry
1 answer:
tamaranim1 [39]3 years ago
7 0
Answer:
            There are 26 valence electrons in SOF₂.

Explanation:
                   Valence electrons are calculated by adding the valence electrons present in valence shell of each element present in SOF₂. So,

# of Valence e⁻s in S  =  6

# of Valence e⁻s in O  =  6

# of Valence e⁻s in F  =  7

# of Valence e⁻s in F  =  7

Now, add all valence electrons,

                                =  6 + 6 + 7 + 7

                                =  26 Valence Electrons
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lana [24]

Vinegar is an heterogeneous mixture

Explanation:

3 0
2 years ago
A current of 5. 68 a is passed through a Fe(NO3)2 solution. How long, in hours, would this current have to be applied to plate o
daser333 [38]

There are  1.2 hr would this current have to be applied to plate out 7. 20 g of iron .

Calculation ,

Given ; Current ( I ) = 5. 68 A

In Fe(NO_{3} )_{2} , the valancy of Fe is +2 .

2 moles of e^{-} are required for the decomposition of 1 mole of Fe .

7. 20 g  of Fe in moles  = 7. 20 g /55.845 g/mol =0.12 mole

x moles of  e^{-} are required for the decomposition of 0.128 mole of Fe .

moles of   e^{-} are required = 0.256 moles

Charge on 1 mole  of   e^{-} = 96500 C

Charge on 0.256  mole  of   e^{-} = 24704 C

Current ( I )= Q/t  

t =Q / I = 24704 C/5. 68 A = 4349 sec = 1.2 hr

Therefore , there are  1.2 hr would this current have to be applied to plate out 7. 20 g of iron .

To learn more about iron

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8 0
1 year ago
Calculate the change in enthalpy for the following reaction, using the bond enthalpy data provided below. (Note: you may round t
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Answer:

-514 kJ/mol

Explanation:

The bond enthalpy which is also known as bond energy can be defined as the amount of energy needed to split one mole of the stated bond. The change in enthalpy of a given reaction can be estimated by subtracting the sum of the bond energies of the reactants from the sum of the bond energies of the products.

For the given chemical reaction, the change in enthalpy of the reaction is:

ΔH_{rxn} = [2(409) + 4(388) + 3(496) - 4(630) - 4(463)] kJ/mol = 818 + 1552 + 1488 - 2520 - 1852 = -514 kJ/mol

3 0
3 years ago
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Answer:

Uuddhhdhdhddjfhbfjdvfbdksvsvsks bdjxbxbdkdhdkdhdbfdhddjdhdvdkdkdvhddvxxicjsvdvdjfvfdnddddhvfucixhdbe

3 0
2 years ago
4. Which of the following is NOT a common property of bases? A. Feels slippery B. tastes bitter C. Reacts with metal D. Changes
alisha [4.7K]

Reacting with metals is not a common property of bases. Bases do however react with acids. 

3 0
3 years ago
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