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hjlf
1 month ago
8

Two glasses labeled A and B contain equal amounts of water at different temperatures. Kim put an antacid tablet into each of the

two glasses. The table shows the time taken by the tablet to dissolve completely in the two glasses.
Antacid Experiment
Glass --> Time
A --> 40 seconds
B --> 10 seconds

Which of the following statements is correct?

A. The water in Glass A is warmer than the water in Glass B; therefore, the water particles in Glass A are stationary.

B. The water in Glass A is cooler than the water in Glass B; therefore, the water particles in Glass A are stationary.

C. The water in Glass A is warmer than the water in Glass B; therefore, the particles in Glass A move faster.

D. The water in Glass A is cooler than the water in Glass B; therefore, the particles in Glass A move slower.
Chemistry
2 answers:
eduard [2.7K]1 month ago
6 0

Answer:

The correct statement is D. The water in Glass A is at a lower temperature compared to Glass B; consequently, the particles in Glass A exhibit reduced movement.

Explanation:

Raising the temperature increases the solubility of solutes.

The experiment indicates that's glass B is at a higher temperature than glass A since the antacid dissolves more quickly in glass B than in glass A. Therefore, glass A must be cooler, leading to slower particle movement compared to glass B.

KiRa [2.9K]1 month ago
5 0

Answer:

D. The water in Glass A is at a lower temperature compared to that in Glass B, leading to a slower movement of particles in Glass A.

Explanation:

Temperature in scientific terms is characterized as the measurement of the average energy of motion of molecules within a substance. An increase in molecular speed indicates a rise in kinetic energy and subsequently, the temperature correspondingly increases.

As the solvent molecules gain speed, their interactions with solute particles increase, facilitating a quicker dissolution at elevated temperatures; this is in contrast to a scenario at decreased temperatures with slower molecular activity.

Consequently, the elevated temperature of the molecules in Glass B will contribute to a more rapid dissolution of the antacid compared to Glass A.

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The atomic mass of 13C is 13.003355. Multiply the atomic mass of 13C by its abundance. Report the number to 8 significant digits
castortr0y [3046]

The result is 0.14303691.

Carbon-13 (¹³C) is a stable isotope of carbon with a mass number of 13, composed of six protons and seven neutrons.

Isotopes are elements that share the same atomic number but have different mass numbers, meaning they have a varying number of neutrons.

ω(¹³C) = 1.10% ÷ 100%.

ω(¹³C) = 0.0110; this indicates the natural abundance of carbon-13.

m(¹³C) = 13.003355; the atomic mass assigned to carbon-13.

ω(¹³C) · m(¹³C) = 0.0110 · 13.003355.

ω(¹³C) · m(¹³C) = 0.14303691.

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11 days ago
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7 0
17 days ago
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The volume of the ideal gas in the container is 9 m3. What would the volume be if four more blocks were placed on top of the lid
castortr0y [3046]
Response:
             4.5 m³

Resolution:
              The statement indicates the presence of two blocks on a lid of a container with a volume of 9 m³. The lid's weight is equal to that of the two blocks. Thus, there were initially four blocks (or 4 atm pressure) acting on a volume of 9 m³.

After adding four additional blocks on the lid, the pressure rises from 4 atm to 8 atm (2 atm from the lid, 2 atm from the original blocks, and 4 atm from the new blocks).

Hence, The data established is,

                  P₁  =  4 atm

                  V₁  =  9 m³

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Using Boyle's Law,

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Resolving for V₂,
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Substituting values yields:
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Answer:

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Tems11 [2777]
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