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2 years ago

Convert 23.92inHg to Pa.

Chemistry

2 answers:

andriy [413]2 years ago

5 0

Answer:

3189.07Pa

Explanation:

The conversion of 23.92mmH to Pa can be achieved in the following way:

760mmHg = 101325Pa

23.92mmHg = (23.92x101325)/760 = 3189.07Pa

Tju [1.3M]2 years ago

4 0

Answer:

$\large \boxed{8.100 \times 10^{4} \text{ Pa}}$

Explanation:

$\text{Pressure} = \text{23.92 inHg} \times \dfrac{\text{2.54 cmHg}}{\text{1 inHg}} \times \dfrac{\text{1 atm}}{\text{76 cmHg}} \times \dfrac{\text{101.325 kPa}}{\text{1 atm}} = \text{ 81.00 kPa}\\\text{The pressure is $\large \boxed{\mathbf{8.100 \times 10^{4}} \textbf{ Pa}}$}$

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Mechanical energy is the sum of the _____ energy of an object. A kinetic and potential B potential and thermal C kinetic and che

Juli2301 [7.4K]

Answer:

A. kinetic and potential

Explanation:

kinetic energy (energy of motion) or potential energy (stored energy of position)

- Hope that helped! Let me know if you need further explanation.

5 0

2 years ago

For the following reaction, calculate how many moles of each product are formed when 4.05 g of water is used.

timurjin [86]

Answer:

A. 0.225 mole of H₂

B. 0.113 mole of O₂.

Explanation:

We'll begin by calculating the number of mole in 4.05 g of water (H₂O). This can be obtained as follow:

Mass of H₂O = 4.05 g

Molar mass of H₂O = (2×1) + 16 = 2 + 16 = 18 g/mol

Mole of H₂O =?

Mole = mass /Molar mass

Mole of H₂O = 4.05 / 18

Mole of H₂O = 0.225 mole

Next, the balanced equation.

2H₂O —> 2H₂ + O₂

From the balanced equation above,

2 moles of H₂O produced 2 moles of H₂ and 1 mole of O₂.

A. Determination of the number of mole hydrogen produced.

From the balanced equation above,

2 moles of H₂O produced 2 moles of H₂.

Therefore, 0.225 mole of H₂O will also produce 0.225 mole of H₂.

B. Determination of the number of mole oxygen produced.

From the balanced equation above,

2 moles of H₂O produced 1 mole of O₂.

Therefore, 0.225 mole of H₂O will produce = (0.225 × 1)/2 = 0.113 mole of O₂.

Thus, 0.113 mole of O₂ is produced.

7 0

2 years ago

1. The following are statements about flames some of them are true while others are

hoa [83]

Answer:

i)The carbon particles are formed when the gas is not completely burnt(True)

ii)A solid or liquid must be change to gaseous state in order to make flame(TRUE)

iii)A non- luminous Bunsen flame produces has three visible regions(FALSE)

iv)The luminous Bunsen flame produces less soot than the non- luminous flame(FALSE)

v)A yellow Bunsen flame is obtained when the air holes are opened(FALSE)

vi)The luminous Bunsen flame is hotter than a non- luminous Bunsen flame(FALSE)

vii)Bunsen burner uses kerosene as a source of heat(FALSE)

Explanation:

i)When the incomplete combustion ,then CO(carbon monoxide) and C(carbon) are produced. The unburnt carbon get deposited as Soot.

In complete combustion CO2(carbon dioxide) is produced.

ii)Fire, is the mixture of hot gases.Flame are result of chemical reaction between oxygen and fuel(e.g butane ,wood).Flame contain,carbon dioxide , heat ,light,steam.

iii)There are total three regions of flame in which the outer most region is the non-luminous .The non-luminous part is blue(one visible region) and does not emit-light.

iv) Luminous Bunsen flame produces more soot than the non- luminous flame because luminous flame contain more unburnt particles as compare to non-luminous.

luminous part has less oxygen available for complete combustion of fuel

v)When the air hole is open it means excess oxygen is supplied to the fuel.

In this case clean and luminous flame is produced.When air hole is close yellow flame is produced.

vi)Non-luminous part of flame is more hot because of complete combustion due to proper availability of oxygen. Sometime the particle of non-luminous flame get ionize also.

vii).The bunsen burner uses Natural gas(methane) or LPG(propane and butane)as sources of heat because these are easily burnt not kerosene.

4 0

2 years ago

At 40 degrees Celsius , 100 grams of NaClO3 is added to 100 grams of water. The solution would be ..

Hoochie [10]

The answer would be A

7 0

2 years ago

In a chemical reaction, 36 grams of hydrochloric acid reacts with 40 grams of sodium hydroxide to produce sodium chloride and wa

Elena L [17]

The answer is The mass of sodium chloride formed is less than 76 grams.

Remember Mass is never gained or loss in any chemical reactions

So,

hydrochloric acid + sodium hydroxide => sodium chloride + water
Total 76 gram Total will also 76 gram

In this case, the mass of sodium chloride will be less than 76 gram because we need to take out the mass of the water.

3 0

3 years ago

Read 2 more answers