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IRISSAK [1]
3 years ago
15

A tablet of one antacid contains citric acid, H3C6H5O7, and sodium hydrogen carbonate, NaHCO3. When the tablet dissolves in wate

r, bubbles of CO2 are produced. This reaction is represented by the incomplete equation below.
H3C6H5O7(aq) + 3NaHCO3(aq)==> Na3C6H5O7(aq) + 3CO2(g) + 3 _______ (ℓ)
Complete the equation in your answer booklet by writing the formula of the missing product.
Chemistry
2 answers:
Nadusha1986 [10]3 years ago
8 0
H2O
This equation is a double displacement reaction, and it forms H2CO3, which is very unstable and separates into H2O and CO2.
scoundrel [369]3 years ago
3 0

Answer:

Water (H₂O) is the missing product

Explanation:

Let's write the equation involved:

H₃C₆H₅O₇(aq) + 3NaHCO₃(aq) ---->

When we watch the first product which is Na₃C₆H₅O₇, we can see that in this case, there was a displacement of the H₃ by the atoms of Na. This give us an idea of what kind of reaction is ocurring. If we follow the principle of the displacement, the reaction should be the following:

H₃C₆H₅O₇(aq) + 3NaHCO₃(aq) ----> Na₃C₆H₅O₇(aq) + 3H₂CO₃(aq)

However, this last compound (H₂CO₃) is very unstable in the presence of sodium citrate, so, the acid suffers another internal reaction:

H₂CO₃(aq) -------> CO₂(g) + H₂O(l)

The CO₂ are the bubbles produced, and the water is produced in solution. Therefore, the products of the general reaction is:

H₃C₆H₅O₇(aq) + 3NaHCO₃(aq) ----> Na₃C₆H₅O₇(aq) + 3CO₂(g) + 3H₂O(l)

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Bakit mahalaga ang paghahanda ng pambansang badyet sa isang taon?​
Andreas93 [3]

Answer:

no lo sé chico ve a morir en un agujero

Explanation:

8 0
2 years ago
Suppose that 0.1000 mole each of H2and I2are placed in a 1.000-L flask, stoppered, and the mixture is heated to 425oC. At equili
Katen [24]

<u>Answer:</u> The value of equilibrium constant for the given reaction is 56.61

<u>Explanation:</u>

We are given:

Initial moles of iodine gas = 0.100 moles

Initial moles of hydrogen gas = 0.100 moles

Volume of container = 1.00 L

Molarity of the solution is calculated by the equation:

\text{Molarity of solution}=\frac{\text{Number of moles}}{\text{Volume}}

\text{Molarity of iodine gas}=\frac{0.1mol}{1L}=0.1M

\text{Molarity of hydrogen gas}=\frac{0.1mol}{1L}=0.1M

Equilibrium concentration of iodine gas = 0.0210 M

The chemical equation for the reaction of iodine gas and hydrogen gas follows:

                         H_2+I_2\rightleftharpoons 2HI

<u>Initial:</u>                0.1    0.1

<u>At eqllm:</u>          0.1-x   0.1-x   2x

Evaluating the value of 'x'

\Rightarrow (0.1-x)=0.0210\\\\\Rightarrow x=0.079M

The expression of K_c for above equation follows:

K_c=\frac{[HI]^2}{[H_2][I_2]}

[HI]_{eq}=2x=(2\times 0.079)=0.158M

[H_2]_{eq}=(0.1-x)=(0.1-0.079)=0.0210M

[I_2]_{eq}=0.0210M

Putting values in above expression, we get:

K_c=\frac{(0.158)^2}{0.0210\times 0.0210}\\\\K_c=56.61

Hence, the value of equilibrium constant for the given reaction is 56.61

6 0
3 years ago
the red line observed in the line spectrum for hydrogen has 3.03x10^-19J, what is the wavelength, in nm, of this?
djverab [1.8K]

Answer:

λ = 6.5604 x 1016 nm

Explanation:

Given Data:

The energy of the red line in Hydrogen Spectra = 3.03 x 10-19

Formula to calculate Wave length

E= hv

Where E is Energy

h is Planks Constant = 6.626 x 10–34 J s

v is frequency

In turn

v= c/ λ

where c is speed of light = 3.00 x 108 m s–1

λ is wavelength = to find

Solution:

Formula to be Used:

E= hv………………………… (1)

Putting the value v in equation 1

               E= h c/ λ…………………… (2)

Put the value in equation 2

3.03 x 10-19 J  = (6.626 x 10–34 J s) x (3.00 x 108 m s–1) / λ ……………………….(3)

By rearranging equation 3

λ = (6.626 x 10–34 J s) x (3.00 x 108 m s–1) /3.03 x 10-19  J

λ = 6.5604 x 107 m

The answer is in “m”

So we have to convert it into nm

So for this to convert “m” to “nm” multiply the answer with 109

λ = 6.5604 x 107 x 109

λ = 6.5604 x 1016 nm

6 0
3 years ago
What do you think is responsible for the color produced in the flame, the metal atom or what is attached to the metal atom?
zlopas [31]

Answer:

metal Atom

Explanation:

every transition metal atom are responsible for the flame color. Some metal are also confirmed by flame test.

7 0
3 years ago
Okghhjhyuknji<br>Hdhdnsbdhjsms dnddms dnjdke
VikaD [51]

Answer:

thanks for the points

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6 0
2 years ago
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