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4 years ago

How many grams of kclo3 can be dissolved in 100 grams of water at 30 degrees Celsius

1 answer:

8 0

The solubility of KClO₃ : ( 10.1 / 100 g water ) at 30ºC

10.1 g ------------ 100 g ( H₂O )
? g ------------- 100 g ( H₂O )

Mass of KClO₃ :

100 * 10.1 / 100

1010 / 100 = 10.1 g of KClO₃

hope this helps!

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In the first step of glycolysis, the given two reactions are coupled. reaction 1:reaction 2:glucose+Pi⟶glucose-6-phosphate+H2OAT

vazorg [7]

Answer : The reaction 2 is spontaneous.

Explanation :

As we know that:

$\Delta G$ = +ve, reaction is non spontaneous

$\Delta G$ = -ve, reaction is spontaneous

$\Delta G$ = 0, reaction is in equilibrium

For the reaction to be spontaneous, the Gibbs free energy of the reaction must come out to be negative.

Reaction 1:

Glucose + Pi $\rightarrow$ glucose-6-phosphate + H₂O, ΔG = +13.8 kJ/mol

Reaction 2:

ATP + H₂O $\rightarrow$ ADP + Pi, ΔG = -30.5 kJ/mol

From this we conclude that the value of ΔG is negative. So, reaction 2 is a spontaneous reaction.

8 0

3 years ago

According to the following equation:

Volgvan

2H2 + O2 → 2H2O
2 mol. → 2×(1×2+16)
1 mol. → x
$x = \frac{36 \times 1}{2 } = 18 \: g \: \: of \: h2o$

6 0

3 years ago

Using the diagram above, answer the following questions:

STatiana [176]

Answer:

See explanation for details

Explanation:

6) C is false. What is going on there is actually a transformation of mechanical energy to the chemical energy stored in carbon dioxide in the atmosphere. The burning of the fossil fuel produces mechanical energy which is stored in the chemical bonds of CO2 hence the statement is false

7) A is true. Solar energy refers to energy from the sun, this energy is trapped from Tue sun and stored in chemical bonds in glucose, and starch molecules during photosynthesis.

8) C represents the release of carbon dioxide by the burning of fossil fuels.

9) B,C,D, E

B refers to photosynthesis in which plants take in atmospheric carbon dioxide

C refers to the burning of fossil rules which releases atmospheric carbon dioxide

D refers to the dissolution of atmospheric carbon dioxide in water bodies to form carbonates in water.

E refers refers the return of organic carbon to the soil by dead organisms

10) A and C

A shows the conversion of solar energy to chemical energy

C shows the conversion of mechanical energy to chemical energy

7 0

3 years ago

Which element is classified as a noble gas? O N Cl Xe

ivann1987 [24]

Answer: The correct answer is Xenon (Xe).

Explanation:

Noble gases are defined as the gases which have fully filled electronic configuration or stable electronic configuration.

From the given options:

Option 1: Oxygen (O)

The atomic number of this element is 8.

Electronic configuration of this element: $1s^22^22p^4$

As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.

Option 2: Nitrogen (N)

The atomic number of this element is 7.

Electronic configuration of this element: $1s^22^22p^3$

As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.

Option 3: Chlorine (Cl)

The atomic number of this element is 17.

Electronic configuration of this element: $1s^22^22p^63s^23p^5$

As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.

Option 4: Xenon (Xe)

The atomic number of this element is 54.

Electronic configuration of this element: $[Kr]5s^24d^{10}5p^6$

As, this is a stable electronic configuration. Thus, it is considered as a noble gas.

Hence, the correct answer is Xenon (Xe).

7 0

4 years ago

Read 2 more answers

What will be the ph of a buffer solution with an acid (pka6. 1) that is exactly half as concentrated as its conjugate base?

anygoal [31]

The pH of a buffer solution with acid that (PKA 6. 1) is exactly half as concentrated as its conjugate base is 6.4.

<h3>What is a buffer solution?</h3>

A buffer solution is a solution that has a maintained pH, not basic or not acidic. Its pH changes when acid or base is added to the solution.

We had to figure out the acid's concentration, which is exactly half that of its potential base.

We know that pH = pH_log

We have less than 6.1 pH so this is a conjugated base.

This will equal to 6.1 + log2 = 6.4

Thus, the pH of a buffer solution with acid is 6.4.

To learn more about buffer solutions, refer to the below link:

brainly.com/question/13169083

#SPJ4

7 0

2 years ago