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Tema [17]
3 years ago
7

Gasoline and motor oil are chemically similar. They are both mixtures of nonpolar hydrocarbons containing carbon and hydrogen at

oms. However, motor oil is much more viscous than gasoline. Which substance probably has the higher average molar mass?
Answers:

A. Gasoline

B. Motor Oil
Chemistry
2 answers:
EleoNora [17]3 years ago
5 0

Answer:

B. Motor oil

Explanation:

Both gasoline and motor oil are non-polar hydrocarbons. The intermolecular force of attraction in these molecules is the London dispersion force which is higher for molecules with larger molar mass.

Viscosity  is essentially the resistance to flow offered by the liquid. This is dependent on the intermolecular force of attraction. Stronger force implies that the molecules are held together strongly and will not move freely resulting in higher viscosity.

It is given that motor oil is more viscous which implies that the molecules in motor oil are held by stronger intermolecular forces of attraction. This would suggest that motor oil would have a higher molar mass than gasoline.

AnnyKZ [126]3 years ago
4 0

Gasoline and motor oil are chemically similar. They are both mixtures of nonpolar hydrocarbons containing carbon and hydrogen atoms. However, motor oil is much more viscous Motor Oil

A chef is using honey in a recipe. The honey is too thick to pour out of the jar. How could the chef make the honey easier to pour? heat it

Water’s molar mass is 18.01 g/mol. The molar mass of methanol is 32.01 g/mol. At room temperature, water is 64% more viscous than methanol. Which substance has the stronger intermolecular attraction? water





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Show the equation how many grams of Mg(OH)2 would be produced from 4 mol KOH?
Sindrei [870]
Mole ratio:

MgCl₂ + 2 KOH = Mg(OH)₂ + 2 KCl

2 moles KOH ---------------- 1 mole Mg(OH)₂
4 moles KOH ------------------- moles Mg(OH)₂

moles Mg(OH)₂   = 4 x 1 / 2

= 2  moles of   Mg(OH)₂

molar mass Mg(OH)₂ = 58g/mol

mass of   Mg(OH)₂ = n x mm

mass of  Mg(OH)₂ = 58 x  2

= 116 g of <span> Mg(OH)₂</span>

hope this helps!
8 0
3 years ago
Targ
yKpoI14uk [10]

The system will adjust itself in order to resist the change.

Explanation:

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Learn more:

Chemical equilibrium brainly.com/question/10838453

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7 0
3 years ago
What is the number of moles in 432 g Ba(NO3)2? A. 0.237 mol B. 0.605 mol C. 1.65 mol D. 3.66 mol
Montano1993 [528]

Answer:

C

Explanation:

Since Moles=mass/molar mass

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6 0
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The solubility product for barium sulfate is 1.1 × 10–10. calculate the molar solubility of barium sulfate.
Triss [41]
When it comes to equilibrium reactions in chemistry, there are a lot of equilibrium constants that can be used. In the case of solubility, the appropriate one to use is the equilibrium constant of solubility product denotes as Ksp. This is the concentration of products raised to their coefficients. For example,

 cC ⇔ aA + bB 

Ksp = {[A^a][B^b]}

Now, for the this problem, the reaction is

BaSO₄ ⇔ Ba²⁺ + SO₄²⁻

The reaction is already balanced. Since we don't know the value of Ba²⁺ and SO₄²⁻, let's denote this at x.

1.1 × 10⁻¹⁰ = [x][x] =[x²]
[x] = [Ba²⁺] = [SO₄²⁻] = [BaSO₄] = 1.049 × 10⁻⁵ M
8 0
3 years ago
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