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wolverine [178]
3 years ago
8

How many significant figures are in 820 400.0 L

Chemistry
1 answer:
raketka [301]3 years ago
7 0

Answer:

7 significant numbers

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In boyle's law, the initial volume of a gas is 120 ml at 256 kpa. what will be the volume if the pressure increases to 385 kpa?
Vinil7 [7]
<h3>Answer:</h3>

79.8 ml

<h3>Explanation:</h3>

Boyle's law describes the relationship between pressure and volume when the temperature is constant. For this question, I will be rounding to significant figures.

Boyle's Formula

When describing the relationship between pressure and volume, the formula \displaystyle P_{1} V_{1}= P_{2} V_{2}. In this formula, P_{1}V_{1} is the initial pressure and volume. On the other side, P_{2} V_{2} is final pressure and volume. So, to find a missing variable you must plug in the values you are given.

Final Volume

Remember when solving this question to remain constant in your units. When we plug in the values we know we are given:

  • 256kPa*120mL=385kPa*V_{2} mL

Now, we can multiply the left side

  • 30720kPa*mL=385kPa*V_{2} mL

Finally, we can divide by 385 to isolate the final volume

  • 79.8mL=V_{2}

This gives the final volume of 79.8mL.

7 0
2 years ago
The volume of a gas is inversely proportional to the pressure of a gas is known as:.
bazaltina [42]

Answer:

Boyle's law states this.

7 0
2 years ago
The diagram shows the movement of particles from one end of the container to the opposite end of the container. A cylindrical co
trapecia [35]

Answer:

C. effusion because there is a movement of a gas through a small opening into a larger volume

Explanation:

Effusion makes fluid/gas molecules move to the container with less pressure or larger volume. In diffusion, the movement should work two ways even though one side might receive more. But in effusion, the movement is rather one way.

This case shows how effusion work because its not the concentration that makes the balls moving to the bottom part of the container. No ball moving from bottom container to top either.

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4 years ago
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Define dynamic chemical equilibrium in terms of quantities of reactants and products
julia-pushkina [17]
Dynamic chemical equilibrium is the point at which t<span>he rate of the forward reaction is equal to the rate of the reverse reaction.</span><span>This means that reactants are converted to products and products are converted to reactants at an equal and constant rate.At this point the opposite rates are equal, not the concentrations. In terms of concentration, the concentration </span>of reactants and products stabilizes at a fixed ratio.

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A student filled a shallow pan of with water and wanted to investigate waves. The student used a dropper to drip water onto the
garri49 [273]

Answer:

B

Explanation:

a wave is a traveling oscolatsion, it does not transfer matter but rather energy.

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3 years ago
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