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3 years ago

If you need to measure the volume of liquid in a bottle of eyedrops, what unit would be the most practical?

Chemistry

2 answers:

julsineya [31]3 years ago

6 0

The correct answer is B. Milliliter

Explanation:

Volume, which refers to the space a liquid, solid, etc. occupies can be measured using different units such as milliliter that is one of the smallest units, liter that is the most common one and is equivalent to 1000 milliliters; dekaliter than is equivalent to 10 liter and kiloliter that is the equivalent to 1000 liters. This means, if you need to measure the volume of a liquid in a bottle of eye drops that is usually a small container, the best is to use the milliliter as a unit because this is the smallest unit from the options given and therefore the more suitable for measuring small volumes precisely. Indeed, most bottles of eye drops contain around 5 or 10 milliliters.

nexus9112 [7]3 years ago

4 0

The most practical would be milliliters

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Which excerpt from amy tan's "fish cheeks" is most clearly an example of conflict?

nexus9112 [7]

Answer is: d.and then they arrived - the minister's family and all my relatives in a clamor of doorbells and rumpled christmas packages. robert grunted hello, and i pretended he was not worthy of existence?
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3 years ago

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dmitriy555 [2]

Answer:

yaeh

Explanation:

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3 years ago

Susan made observations about outside events she noticed throughout the day. The day began with rain. Susan saw puddles on the r

S_A_V [24]

Answer:

Rainfall - precipitation

disappeared puddles - evaporation

cloud formation - condensation

Explanation:

Rainfall that is observed by the Susan is the precipitation of the water cycle in which the water vapor that was condensed become heavy and form droplets of water and fall from sky to the earth surface.

Puddles that formed due to rainfall are the collection of water in the water cycle which is evaporated (process: evaporation) into the atmosphere n the form of water vapor which condensed to form clouds.

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3 years ago

Calculate the volume of oxygen required to burn 12.00 l of ethane gas, c2h6, to produce carbon dioxide and water, if the volumes

kirza4 [7]

The volume of oxygen required to burn 12.00 L ethane is calculated as follows

find the moles of C2H6 used

At STP 1 mole is always = 22.4 L, what about 12.00 L

= ( 12.00L x 1 moles) 22.4 L = 0.536 moles

write the reacting equation

2C2H6+ 7O2 = 4CO2 + 6H2O
by use of mole ratio between C2H6 :O2 which is 2:7 the moles of O2

= 0.536 x7/2= 1.876 moles

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3 years ago

While ethanol is produced naturally by fermentation, e.g. in beer- and wine-making, industrially it is synthesized by reacting e

sp2606 [1]

The question is incomplete, here is the complete question:

While ethanol is produced naturally by fermentation, e.g. in beer- and wine-making, industrially it is synthesized by reacting ethylene with water vapor at elevated temperatures.

A chemical engineer studying this reaction fills a 1.5 L flask at 12°C with 1.8 atm of ethylene gas and 4.7 atm of water vapor. When the mixture has come to equilibrium she determines that it contains 1.16 atm of ethylene gas and 4.06 atm of water vapor.

The engineer then adds another 1.2 atm of ethylene, and allows the mixture to come to equilibrium again. Calculate the pressure of ethanol after equilibrium is reached the second time. Round your answer to 2 significant digits.

Answer: The partial pressure of ethanol after equilibrium is reached the second time is 1.0 atm

Explanation:

We are given:

Initial partial pressure of ethylene gas = 1.8 atm

Initial partial pressure of water vapor = 4.7 atm

Equilibrium partial pressure of ethylene gas = 1.16 atm

Equilibrium partial pressure of water vapor = 4.06 atm

The chemical equation for the reaction of ethylene gas and water vapor follows:

$CH_2CH_2(g)+H_2O(g)\rightleftharpoons CH_3CH_2OH(g)$