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LiRa [457]
3 years ago
9

Find the volume of 10g of gasoline if it has a density of 0.7g/mL

Chemistry
1 answer:
Salsk061 [2.6K]3 years ago
5 0

Hey there!

Mass = 10 g

Density = 0.7 g/mL

Volume = ?

Therefore:

D = m/ V

0.7 = 10 / V

V = 10 / 0.7

V = 14.28 mL

Hope that helps!

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What is the density of fluorine gas, F2, at STP? E) 0.848 g/L B) 1.18 g/ L C ) 1.70 g/L D) 0.589 g/L
Gre4nikov [31]

Answer:

C ) 1.70 g/L

Explanation:

Using ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 0.0821 L.atm/K.mol

Also,

Moles = mass (m) / Molar mass (M)

Density (d)  = Mass (m) / Volume (V)

So, the ideal gas equation can be written as:

PM=dRt

At STP,

Pressure = 1 atm

Temperature = 273.15 K

Molar mass of fluorine gas = 38 g/mol

Applying the equation as:

1 atm × 38 g/mol = d × 0.0821 L.atm/K.mol × 273.15 K

<u>⇒d = 1.70 g/L</u>

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Explain how gas pressure is measured
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Gas pressure is measured in mmHg with a barometer
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State the postulates of Dalton's atomic theory. ​
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A theory of chemical combination, first stated by John Dalton in 1803. It involves the following postulates: (1) Elements consist of indivisible small particles (atoms). (2) All atoms of the same element are identical; different elements have different types of atom. (3) Atoms can neither be created nor destroyed.

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Suppose the reaction system below has already reached equilibrium. Predict the effect that each of the following changes will ha
WARRIOR [948]

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

  • On removal of reactant from equilibrium reaction ,shifts the equilibrium in backward direction.
  • On addition of reactant from equilibrium reaction ,shifts the equilibrium in forward direction.
  • On removal of product from equilibrium reaction, shifts the equilibrium in forward direction.
  • On addition of product from equilibrium reaction, shifts the equilibrium in backward direction.

UO_2(s) + 4 HF(g)\rightleftharpoons UF_4(g) + 2 H_2O(g)

1. Water vapor is removed

On removal of water vapor from equilibrium will decrease the product which will lead to moving forward of an equilibrium that is equilibrium will shift to right direction.

2. UF_4(g) is added

On addition of UF_4(g) from equilibrium will increase the reactant which will lead to moving forward of an equilibrium that is equilibrium will shift to right direction.

3.The reaction is done in a glass reaction vessel. HF(g) attacks and reacts with the glass

Due to reaction of HF with glass will result in decrease in amount of HF present at equilibrium. So, order to counter this equilibrium will shift in backward direction or in left direction.

4. If the reaction is endothermic, and you want to make the equilibrium shift to the right to maximize the products, would you heat or cool the reaction vessel.

I endothermic reaction , heat is added to the reaction for which we can treat heat as a reactant.Now, we want to shift the equilibrium to right which means in the forward direction.

And this can be done by increasing the reactant amount, here by adding more heat to the equilibrium will shift the reaction to the right side.

So, for increasing heat we will heat the reaction vessel.

5 0
2 years ago
How do we form Ionic Compounds?
brilliants [131]

Answer

Ionic compounds are formed when metals react with non-metals . Ionic compounds held together by ionic bonds are classed as ionic compounds.

Explanation:

I used this to awnser this queston when I was a freshmen in high school.

4 0
2 years ago
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