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padilas [110]
3 years ago
7

Draw a Lewis structure for SF4 that has minimized formal charges. Include all nonbonding electrons and any nonzero formal charge

s.
Chemistry
1 answer:
gayaneshka [121]3 years ago
8 0

Answer:

See explanation and image attached

Explanation:

The compound SF4 is sulphur tetraflouride. It has a zero formal charge and has a total of 34 valence electrons.

The central atom in the molecule is sulphur in an sp3d hybridization state hence the molecule has a trigonal bipyramidal electron geometry. Since it is a molecule of the sort AX4E; it gives a see-saw molecular shape.

The structure of the molecule is shown in the image attached to this answer.

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How many grams of propane, C3H8, are needed to make 140 grams of water?
Marizza181 [45]

Answer:

85.6 g

Explanation:

Step 1: Write the balanced combustion equation

C₃H₈ + 5 O₂ ⇒ 3 CO₂ + 4 H₂O

Step 2: Calculate the moles corresponding to 140 g of H₂O

The molar mass of H₂O is 18.02 g/mol.

140 g × 1 mol/18.02 g = 7.77 mol

Step 3: Calculate the moles of C₃H₈ needed to produce 7.77 moles of H₂O

The molar ratio of C₃H₈ to H₂O is 1:4. The moles of C₃H₈ needed are 1/4 × 7.77 mol = 1.94 mol.

Step 4: Calculate the mass corresponding to 1.94 moles of C₃H₈

The molar mass of C₃H₈ is 44.10 g/mol.

1.94 mol × 44.10 g/mol = 85.6 g

7 0
3 years ago
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natulia [17]

Answer:

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Explanation:

3 0
4 years ago
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Which represents the correct equilibrium constant expression for the reaction below?
taurus [48]

Answer:

b

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4 0
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What occurs to the atoms of reactants in a chemical reaction?
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What occurs to the atoms of reactants in a chemical reaction?

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What mass of KCl will produce a saturated solution in 500.0 g of water at 20°C? The solubility of KCl at 20°C is 34.0 g/100 g H2
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<u>X = 170g KCl

</u>
:)
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3 years ago
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