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Firlakuza [10]
3 years ago
5

Pls answer ill give brainliest question in pic

Chemistry
1 answer:
RUDIKE [14]3 years ago
6 0
C, im pretty sure if im wrong my bad
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Now consider the reaction A+2B⇌C for which in the initial mixture Qc=[C][A][B]2=387 Is the reaction at equilibrium? If not, in w
hram777 [196]

To answer this question Kc of this reaction OR the conc of reactants nd products at equilibria is required.

Explanation:

8 0
4 years ago
Only the first few meters of the troposphere are heated by__________.
lakkis [162]

Answer:

a

Explanation:

5 0
3 years ago
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Determine the mass of 5.2 x 10 power of 21 molecules of propanol C3H7OH(l), on grams.
Alja [10]

n(\text{C}_3\text{H}_7\text{OH}) = N(\text{C}_3\text{H}_7\text{OH}) / N_A\\ \phantom{n(\text{C}_3\text{H}_7\text{OH})} = 5.2 \times 10^{21} / (6.02 \times 10^{23})\\ \phantom{n(\text{C}_3\text{H}_7\text{OH})} = 8.6 \times 10^{-3} \; \text{mol}

where N_A = 6.02 \times 10^{23}\; \text{mol}^{-1} the Avogadro's constant that relates the number of particles to their number, in the unit moles \text{mol}.

The molar mass of propanol- mass per mole propanol- can be directly deduced from its molecular formula with reference to a modern periodic table.

M(\text{C}_3\text{H}_7\text{OH}) = \underbrace{3 \times 12.01}_{\text{carbon}} + \underbrace{8 \times 1.008}_{\text{hydrogen}} + \underbrace{1\times 16.00}_{\text{oxygen}} = 60.09 \; \text{g} \cdot \text{mol}^{-1}

8.6 \times 10^{-3} \; \text{mol} of propanol molecules would thus have a mass of 8.6 \times 10^{-3} \; \text{mol} \times 60.09 \; \text{g} \cdot \text{mol}^{-1} = 0.52 \; \text{g}

5 0
4 years ago
At a given temperature, 4.06 atm of H2 and 3.5 atm of Cl2 are mixed and allowed to come to equilibrium. The equilibrium pressure
Llana [10]

<u>Answer:</u> The value of K_p for the given chemical reaction is 0.1415

<u>Explanation:</u>

Equilibrium constant in terms of partial pressure is defined as the ratio of partial pressures of the products and the reactants each raised to the power their stoichiometric ratios. It is expressed as K_p

For a general chemical reaction:

aA+bB\rightarrow cC+dD

The expression for K_p is written as:

K_p=\frac{p_{C}^cp_{D}^d}{p_{A}^ap_{B}^b}

For the given chemical equation:

H_2(g)+Cl_2(g)\rightleftharpoons 2HCl(g)

The expression for K_p for the following equation is:

K_p=\frac{(p_{HCl})^2}{(p_{H_2)}(p_{Cl_2})}

We are given:

p_{HCl}=1.418atm\\p_{H_2}=4.06atm\\p_{Cl_2}=3.5atm

Putting values in above equation, we get:

K_p=\frac{(1.418)^2}{(4.06)\times (3.5)}\\\\K_p=0.1415

The value of K_p for the given chemical reaction is 0.1415

5 0
3 years ago
When the equation Fe +Cl2 FeCl3 → is balanced, what isthe coefficient for Cl2?
mixas84 [53]

Answer: Option (c) is the correct answer.

Explanation:

The given reaction is as follows.

    Fe + Cl_{2} \rightarrow FeCl_{3}

Number of atoms on reactant side are as follows.

  • Fe = 1
  • Cl = 2

Number of atoms on product side are as follows.

  • Fe = 1
  • Cl = 3

To balance the given equation, we multiply Fe by 2 and Cl_{2} by 3 on the reactant side. Therefore, the balanced chemical equation will be as follows.

           2Fe + 3Cl_{2} \rightarrow FeCl_{3}

Thus, the coefficient of Cl_{2} is 3.

7 0
4 years ago
Read 2 more answers
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