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3 years ago

Is gasoline a compound or a mixture? compound mixture

Chemistry

2 answers:

Kobotan [32]3 years ago

5 0

Answer:

It is a mixture.

Explanation:

A compound is a pure substance which cannot be separated into its constituent by physical methods.

A mixture is a substance which can be separated into its constituent by physical methods.

Gasoline consists of different organic liquids.

These organic liquids can be separated by physical means like fractional distillation.

Thus gasoline will be a mixture. More specifically it is a homogeneous mixture.

ehidna [41]3 years ago

3 0

Gasoline would be a mixture if I recalled

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What is the wavelength of light with 2.89 x 10-19 J of energy? (The speed of

Alika [10]

Let's see

$\\ \rm\rightarrowtail E=hv$

$\\ \rm\rightarrowtail E=\dfrac{hc}{\lambda}$

lambda is wavelength
h is Planck constant
c is velocity of sound in air
E in energy

$\\ \rm\rightarrowtail \lambda=\dfrac{hc}{E}$

$\\ \rm\rightarrowtail \lambda=\dfrac{6.626\times 10^{-34}\times 3\times 10^8}{2.89\times 10^{-19}}$

$\\ \rm\rightarrowtail \lambda=6.878\times 10^{-7}m$

$\\ \rm\rightarrowtail \lambda=68.8\mu m$

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1 year ago

Identify the solute and solvent in a solution made from 15 mL of oxygen and 5 mL of helium.

Marina CMI [18]

Answer:

Oxygen is solvent and Helium is solute.

Explanation:

Helium is a complety inert gas which do not react with other compounds whereas, oxygen can take part in chemical reaction with many compounds.

if we mix 15 mL of oxygen and 5mL of helium then the oxygen is the solvent and helium is solute.
In a mixture the compound with the greater volume is solvent and the compound with lwss volume is solute.
in this case, oxygen has greater volume than that of helium so oxygen is solute and helium is solvent here.

6 0

2 years ago

What effect does hybridization have on chemical bond

Charra [1.4K]

Effect of Hybridisation on Single, Double and Triple Bond Lengths of Carbon. Since the sp hybrid orbital contains more s-character (50%), it is closer to its nucleus; therefore, it forms shorter bonds. Because of the same reason sp2 hybrid orbital forms shorter bonds than sp3 hybrid orbitals.

7 0

2 years ago

What is the molarity of 200 mL of solution in which 2.0<br> molesof sodium bromide is dissolved?

vodomira [7]

Answer:

10 M

Explanation:

Molarity -

Molarity of a substance , is the number of moles present in a liter of solution .

M = n / V

M = molarity

V = volume of solution in liter ,

n = moles of solute ,

From the question,

V = 200mL

Since, 1L = 1000mL ,

1 mL = 0.001 L

Hence,

V = 200mL = 0.2 L

n = 2.0 mol

Hence, to calculate the molarity of the solution, the above formula can be used as -

M = n / V

M = 2.0 mol / 0.2 L = 10 M

8 0

2 years ago

Find the pH of a solution whose H+ concentration is 1.8 x 10-12

frutty [35]

Answer:

11.74

Explanation:

The formula to find the pH of a solution is..

pH = -log [H⁺]

pH = -log [1.8×10¹²]

pH = 11.74

The answer would be to 2 decimal places because the concentration is two significant digits.

8 0

3 years ago