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Karolina [17]
3 years ago
15

Avogadro's number of a chemical substance represents

Chemistry
1 answer:
olchik [2.2K]3 years ago
4 0

Answer:

Avogrado no of a chemical substance represents 6.02×1023 particles

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The molecular scene depicts a gaseous equilibrium mixture at 460°C for the reaction of H2 (blue) and I2 (purple) to form HI. Eac
soldi70 [24.7K]

Answer:

Therefore, the value of K_{p} is 2 \times 10^{9} and value of \Delta G^{o} is -53.2 kJ/mol.

Explanation:

4 0
3 years ago
Which of the following correctly represents the mole ratio between NaOH and FeCl3?
miv72 [106K]
The cool thing about chemical equations is that the mole ratios between compounds is the same as the ratios shown in the balanced equation. 

So first, check to make sure the equation is balanced. I just looked at it, and it is (if you can't tell, that means there're the same number of each kind of atom on both sides of the equation).

The answer lies in the coefficients.

So, you'll notice there's a 3 in front of the sodium hydroxide and no coefficient (which implies 1) in front of the iron trichloride.

It's literally that simple: 3:1.

The answer is D.
3 0
3 years ago
What volume of a 0.160 MM solution of KOHKOH must be added to 550.0 mLmL of the acidic solution to completely neutralize all of
puteri [66]

The given question is incomplete. The complete question is :

What volume of 0.160 M solution of KOH must be added to 550.0 mL of the acidic solution to completely neutralize all of the 0.150 M hydrochloric acid?

Answer: Volume in liters to three significant figures is 0.516 L

Explanation:

To calculate the volume of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HCl

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is KOH

We are given:

n_1=1\\M_1=0.50M\\V_1=550.0mL\\n_2=1\\M_2=0.160M\\V_2=?

Putting values in above equation, we get:

1\times 0.150\times 550.0=1\times 0.160\times V_2\\\\V_2=516mL=0.516L   (1L=1000ml)

Thus volume in liters to three significant figures is 0.516 L

6 0
3 years ago
Can someone help me pls i only have 5 mins to complete
Inessa [10]
I think it is carbon
5 0
3 years ago
The reaction 2A → A2​​​​​ was experimentally determined to be second order with a rate constant, k, equal to 0.0265 M–1min–1. If
Amiraneli [1.4K]

Answer:

0.19M

Explanation:

2A → A2​​​​​

Rate constant = 0.0265 M–1min–1

Initial concentration = 2.00 M

Final Concentration = ?

time, t =  180min

The formular relating the parameters is given as;

1 / [A] = kt + 1 / [A]o

1 / [A] = 0.0265 * 180 + (1 / 2)

1 / [A] = 4.77 + 0.5

[A] = 1 / 5.27 = 0.19M

3 0
3 years ago
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