A certain skin lotion is a fine mixture of water and various oils. This lotion is cloudy and cannot be separated into oil and water by filtration or centrifuge. What type of mixture is it?

The final temperature is  -170.625 degree Celsius ,-191.1 degree C, 409.5 degree C,-272.66 degrees Celsius .

What is Charle's Law ?

According to Charle's Law , For an Ideal Gas , the volume is directly proportional to temperature when no. of moles and Pressure remains constant.

It is given in the question that

A gas has a volume of 4.00 L

T = 0 degree Celsius = 273 K

T' = ? for each scenario

the volume of the gas = 1.5 l , 1200ml , 10 l , 50ml

if n and p do not change

For V₂ = 1.5 l

4 / 273 = 1.5 / T₂

T₂ = 1.5*273/4

T₂ = 102.375 K = -170.625 degree Celsius

For  V₂ = 1.2 l

4/273 = 1.2/T₂

T₂ = 81.9 K = -191.1 degree C

For  V₂ = 10 l

4/273 = 10/T₂

T₂ = 682.5 K= 409.5 degree C

For  V₂ = 50/1000= 0.005L

4/273 = 0.005/T₂

T₂ = 0.34125 K= -272.66 degree C

Therefore the final temperature in degrees Celsius has been determined.

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Answer:

The empirical formula of the compound is

Explanation:

Moles of carbon dioxide =

Moles of carbon in sample =

Moles of water =

Moles of hydrogen in sample =

Mass of sample = Mass of carbon + Mass of hydrogen + Mass of oxygen

Mass of oxygen =

1.3109 g - (12 g/mol × 0.07274 mol) - (1 g/mol× 0.14558 mol)

Mass of oxygen = 0.29244 g

Moles of oxygen in sample =

For empirical formula divide the moles of element which are is less amount with all the moles of every element.

Carbon =

Hydrogen =

oxygen=

The empirical formula of the compound is

Answer:

The answer to your question is:   C₃H₃O  This is my answer.

Explanation:

Data

Sample = 1.3109 g

CxHyOz

CO₂ = 3.2007 g

H₂O = 1.3102 g

Empirical formula = ?

MW CO2 = 44 g

MW H2O = 18 g

For Carbon

                                     44 g -------------------- 12 g

                                     3.2007 g ------------    x

                                      x = (3.2007 x 12) / 44

                                      x = 0.8729 g of Carbon

                                     12 g of C --------------  1 mol

                                     0.8729 g --------------  x

                                     x = (0.8729 x 1) / 12

                                     x = 0.0727 mol of Carbon

For Hydrogen

                                 18 g ---------------------- 1 g

                              1.3102 g -------------------  x

                                   x = (1.3102 x 1) / 18

                                  x = 0.0727 g of Hydrogen                                      

                                  1 g ------------------------ 1 mol

                                  0.0727g ----------------  x

                                  x = (0.0727 x 1)/1

                                  x = 0.0727 mol of Hydrogen

For oxygen

                    g of Oxygen = g of sample - g of Carbon - g of hydrogen

                    g of Oxygen = 1.3109 - 0.8709 - 0.0727

                    g of Oxygen = 0.3673

                                  16 g of Oxygen ------------- 1 mol of O

                                  0.3673 g ---------------------   x

                                   x = (0.3673 x 1)/ 16

                                   x = 0.0230 mol of Oxygen

Divide by the lowest number of moles

Carbon              0.0727 / 0.023  = 3.1  ≈ 3

Hydrogen         0.0727 / 0.023 = 3.1  ≈ 3

Oxygen             0.0230 / 0.023 = 1

                                        C₃H₃O

A white solid is flammable and dissolves in hexane. It should be organic molecule.

What is organic molecule.?

Any chemical substance that has carbon-hydrogen, as well as carbon-carbon bonds is considered an organic molecule.

What is flammable?

The term "flammable substances" refers to those gases, liquids, as well as solids that, when exposed to an ignition source, would catch fire and keep burning in the air. Many flammable and explosive substances have a volatile character, which means they rapidly evaporate and continuously emit vapors.

A chemical characteristic, like corrosion resistance, was flammability. A material's physical characteristics, including its hardness, density, melting point, and thermal conductivity, can be measured or observed without using force or chemical alterations. A material's phase changes when it melts, not just its identity.

There are some properties of organic molecules.

• An abundance of carbon.
• Saturation in organic solvents.
• Covalent bonds form
• A low boiling as well as melting point.

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The scientific consensus is a general agreement among scientists about a scientific idea. The correct option is C.

What is a scientific idea?

A scientific idea is the explanation or facts of science. It reveals the truth about the world. How the world works and the secrets of nature. It tells and gathers true information about the world.

The different aspects of life and the world are understood and studied by scientists. Different scientists work for different forms of life. The scientist's ideas change over the different evidence.

The generalized ideas of various scientists give and agree upon the different theories of the levels of science. The publication process and specialized field.

Thus, the correct option is C. a general agreement among scientists about a scientific idea.

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Answer:

it's C

Explanation:

got it right on EDG 2021

Answer:

Selling price of watch A and watch B= Rs. 425

Let cost price of watch A=x

Profit =10%

∴

100

110

x=425

x=386.36

Let cost price of watch B=y

Loss =10%

∴

100

90

y=425

y=472.22

Net cost price =x+y=858.5858

Net selling price =850

Loss%=

858.58

858.5858−850

×100=1%

Explanation:

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