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liubo4ka [24]
3 years ago
5

Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is for

med.A) liquid pentanol (C5H12O) and gaseous oxygenB) aqueous ammonium chloride and aqueous calcium hydroxideC)aqueous strontium sulfide and aqueous copper(II) sulfate
Chemistry
1 answer:
liubo4ka [24]3 years ago
6 0

Answer:

A) C₅H₁₂O(l) + 7.5 O₂(g) → 5 CO₂(g) + 6 H₂O(l)

B) No reaction

C) SrS(aq) + CuSO₄(aq) → CuS(s)↓ + SrSO₄(aq)

Explanation:

<em>A) liquid pentanol (C₅H₁₂O) and gaseous oxygen.</em>

This is a combustion reaction. assuming the combustion is complete, the products are CO₂ and H₂O.

C₅H₁₂O(l) + 7.5 O₂(g) → 5 CO₂(g) + 6 H₂O(l)

<em>B) aqueous ammonium chloride and aqueous calcium hydroxide.</em>

We could expect a double displacement reaction to take place. But since the products are CaCl₂ and NH₄OH, both of them soluble, no reaction occurs.

<em>C)aqueous strontium sulfide and aqueous copper(II) sulfate.</em>

This is a double displacement reaction. The formed precipitate is CuS.

SrS(aq) + CuSO₄(aq) → CuS(s)↓ + SrSO₄(aq)

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5Br−+BrO3−+6H+→3Br2+3H2O
sashaice [31]

Explanation :

The balanced chemical reaction is,

5Br^-+BrO_3^-+6H^+\rightarrow 3Br_2+3H_2O

The expression for the rates of consumption of the reactants are:

The rate of consumption of Br^- = -\frac{1}{5}\frac{d[Br^-]}{dt}

The rate of consumption of BrO_3^- = -\frac{d[BrO_3^-]}{dt}

The rate of consumption of H^+ = \frac{1}{6}\frac{d[H^+]}{dt}

The expression for the rates of formation of the products are:

The rate of consumption of Br_2 = +\frac{1}{3}\frac{d[Br_2]}{dt}

The rate of consumption of H_2O = +\frac{1}{3}\frac{d[H_2O]}{dt}

5 0
3 years ago
Calculate the pH of a solution with an H+ ion concentration of 9.36 x 10-3 M ?
mel-nik [20]

Answer:

The answer is 2.03

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

where H+ is the Hydrogen ion concentration

From the question we have

pH =  -  log(9.36 \times  {10}^{ - 3} )  \\  = 2.02872415...

We have the final answer as

<h3>2.03 </h3>

Hope this helps you

6 0
3 years ago
For the vaporization reaction Br2(l) → Br2(
oksian1 [2.3K]
    The  temperature  at   which  the  process  be   spontaneous  is  calculated  as  follows

delta  G  =  delta H  -T delta S

let  delta G  be =0

therefore  delta H- T  delta s =0

therefore  T=  delta  H/  delta  S
convert  31   Kj  to  J  =  31  x1000=  31000 j/mol

T=31000j/mol /93 j/mol.k =333.33K


3 0
3 years ago
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mylen [45]
I think is oxygen that what i think
8 0
3 years ago
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Which of the following would have the slowest rate of diffusion at a given temperature
MrMuchimi

Chlorine will have the slowest rate of diffusion because it has the highest   relative molecular mass of 71 followed by O₂ with 32, then Neon 20 then He with 2

The rate of diffusion of a gas is inversely proportional to the square root of its relative molecular mass.  

3 0
3 years ago
Read 2 more answers
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