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1 year ago

For each ionic compound formula, identify the main group to which X belongs: (b) X2(SO4)3

1 answer:

6 0

For each ionic compound,the main group to which X belongs the charge of SO4 is 2-, so the charge of (SO4)3 is 6-. The charge of X2 is 6+, so the charge of X is 3+, so group 3A.

The charge of SO4 is 2-, so the charge of (SO4)3 is 6-. The charge of X2 is 6+, so the charge of X is 3+. We conclude from the formula that X must be a donor of electrons and that it must donate three electrons. x is a member of group 3 A.

What is the formation of ionic character?

A polar covalent bond's degree of charge separation is referred to as its ionic nature. Finding the difference between the two atoms' electronegativity is helpful.

Δχ = χB − χA

Bond polarity and ionic nature grow as the difference in electronegativity widens.

To know more about ionic character refer the link :

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What is the percent yield if 107.50 g NH3 reacts with excess O2 according to the

Maksim231197 [3]

Answer:

81.59%

Explanation:

4NH₃ + 5O₂ → 4NO + 6H₂O

First we convert 107.50 g of NH₃ into moles, using its molar mass:

107.50 g NH₃ ÷ 17 g/mol = 6.32 mol NH₃

Now we calculate how many moles of NO would have been formed by the complete reaction of 6.32 moles of NH₃:

6.32 mol NH₃ * $\frac{4molNO}{4molNH_3}$ = 6.32 mol NO

Then we convert 6.32 moles of NO to grams, using its molar mass:

6.32 mol NO * 30 g/mol = 189.60 g NO

Finally we calculate the percent yield:

154.70 g / 189.60 g * 100% = 81.59%

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3 years ago

Calculate (a) the pH of a 0.0250 M solution of phenylacetic acid, and (b) the pH of a 0.0500 M solution of sodium phenylacetate.

almond37 [142]

Answer:

Explanation:cool thre answer is 009000000000.1 because you have to add them so ye

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3 years ago

Instructions:

never [62]

Answer:

See explanation

Explanation:

A. Constitutional or structural isomers have the same molecular formula but different structural formulas.

B. Conformational isomers are compounds having the same atom to atom connectivity but differ by rotation about one or more single bonds.

C. Stereo isomers are compounds having the same molecular mass and atom to atom connectivity but different arrangement of atoms and groups in space.

I. Enantiomers are stereo isomers (optical isomers particularly) that are non-superimposable mirror images of each other.

II. Diasteromers are optical isomers that are not mirror images of each other.

Both diasteromers and enantiomers are types of optical isomers which in turn is one of the types of stereo isomers.

Stereo isomers differ from conformational isomers in that the arrangement of atoms in stereo isomers is permanent while conformational isomers results from free rotations in molecules about single bonds.

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3 years ago

How did Wegener explain why fossils of land animals were found on continents that are across oceans from one another?

slamgirl [31]

He explained that with continental drift

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3 years ago

Read 2 more answers

Find the mass, in grams, of 3.758 mol CH4. ( show work )

vladimir2022 [97]

Answer:

The mass of CH4 is 60, 29 grams.

Explanation:

We use the weight of the atoms C and H for calculate the molar mass:

Weight of CH4= weight C+ 4 x weight H= 12,01 g/mol +4 x 1,008g/mol=

Weight of CH4 =16, 042 g/mol

1molCH4-----16, 042grams

3,758 mol CH4--X= (3,758 mol CH4 x 16, 042 grams)/1 mol CH4=60,285836 grams

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3 years ago