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kipiarov [429]
3 years ago
14

Identify each definition that applies to the compound in red. Check all that apply. Upper M g (upper O upper H) subscript 2 in r

ed plus upper H subscript 2 upper S upper O subscript 4 right arrow 2 upper H subscript 2 upper O plus upper M g upper S upper O subscript 4. Arrhenius acid Bronsted-Lowry acid Arrhenius base Bronsted-Lowry base.
Chemistry
2 answers:
nadezda [96]3 years ago
7 0

Answer:

Arrhenius Base & Bronsted-Lowry Base

Explanation:

kirill115 [55]3 years ago
5 0

The acid and base have been differentiated based on different concepts. The given compound has been Arrhenius base and Brønsted Lowry base.

<h3>What is Arrhenius acid and base?</h3>

The Arrhenius acid has been given as the compound that adds hydrogen to the sample, and the Arrhenius base is the compound that adds hydroxide ions to the sample.

The given magnesium hydroxide is converted to magnesium sulfate and added hydroxide to the sample. Thus, the sample has been Arrhenius base.

The Brønsted Lowry acid has been the proton donor in the sample, and the Brønsted Lowry base has been the proton acceptor.

The magnesium hydroxide accepts the protons in the sample, and thereby it has been a Brønsted Lowry base.

Learn more about Arrhenius acid and base, here:

brainly.com/question/516295

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The volume of a gas at 17.5 psi decreases from 1.8L to 750mL. What is the new pressure of the gas in arm?
Maurinko [17]

Answer:

P₂ = 2.88 atm

Explanation:

Given data:

Initial volume of gas = 1.8 L

Final volume = 750 mL

Initial pressure = 17.5 Psi

Final pressure = ?

Solution:

We will convert the units first:

Initial pressure = 17.5  /14.696 = 1.2 atm

Final volume = 750 mL ×1L/1000L = 0.75 L

The given problem will be solved through the Boly's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

1.2 atm × 1.8 L =  P₂  ×0.75 L

P₂ = 2.16 atm. L/ 0.75 L

P₂ = 2.88 atm

4 0
3 years ago
Can someone plz help. <br> Define solubility
ANEK [815]

Amount of a substance (called the solute) that dissolves in a unit volume of a liquid substance (called the solvent) to form a saturated solution under specified conditions of temperature and pressure. Solubility is expressed usually as moles of solute per 100 grams of solvent.

3 0
3 years ago
. Determine the standard free energy change, ɔ(G p for the formation of S2−(aq) given that the ɔ(G p for Ag+(aq) and Ag2S(s) are
olga nikolaevna [1]

<u>Answer:</u> The standard free energy change of formation of S^{2-}(aq.) is 92.094 kJ/mol

<u>Explanation:</u>

We are given:

K_{sp}\text{ of }Ag_2S=8\times 10^{-51}

Relation between standard Gibbs free energy and equilibrium constant follows:

\Delta G^o=-RT\ln K

where,

\Delta G^o = standard Gibbs free energy = ?

R = Gas constant = 8.314J/K mol

T = temperature = 25^oC=[273+25]K=298K

K = equilibrium constant or solubility product = 8\times 10^{-51}

Putting values in above equation, we get:

\Delta G^o=-(8.314J/K.mol)\times 298K\times \ln (8\times 10^{-51})\\\\\Delta G^o=285793.9J/mol=285.794kJ

For the given chemical equation:

Ag_2S(s)\rightleftharpoons 2Ag^+(aq.)+S^{2-}(aq.)

The equation used to calculate Gibbs free change is of a reaction is:  

\Delta G^o_{rxn}=\sum [n\times \Delta G^o_f_{(product)}]-\sum [n\times \Delta G^o_f_{(reactant)}]

The equation for the Gibbs free energy change of the above reaction is:

\Delta G^o_{rxn}=[(2\times \Delta G^o_f_{(Ag^+(aq.))})+(1\times \Delta G^o_f_{(S^{2-}(aq.))})]-[(1\times \Delta G^o_f_{(Ag_2S(s))})]

We are given:

\Delta G^o_f_{(Ag_2S(s))}=-39.5kJ/mol\\\Delta G^o_f_{(Ag^+(aq.))}=77.1kJ/mol\\\Delta G^o=285.794kJ

Putting values in above equation, we get:

285.794=[(2\times 77.1)+(1\times \Delta G^o_f_{(S^{2-}(aq.))})]-[(1\times (-39.5))]\\\\\Delta G^o_f_{(S^{2-}(aq.))=92.094J/mol

Hence, the standard free energy change of formation of S^{2-}(aq.) is 92.094 kJ/mol

8 0
4 years ago
What are the properties of cathode rays?
wariber [46]
They travel linearly.
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They have particle property.
Magnets can deflect them.
Charge/mass ratio of the rays is constant.
They travel from the cathode to the anode.
Their properties are independent from the electrodes and gas present in the cathode ray tube.
7 0
3 years ago
The above structure exhibits three rings. Identify which of the rings are aromatic. Enter the numbers in ascending order separat
sertanlavr [38]

Answer:

The aromatic ringsare the number 1 and 2.

Identify which lone pairs are participating in resonance (in aromatic rings).

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Explanation:

For a compound to be aromatic it has to comply with Hückel's Rule, which says that the quantity of electrons in the pi orbitals, has to be a multiple of

4n + 2

for n = 0, 1, 2, 3.

5 0
4 years ago
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