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Gemiola [76]
3 years ago
8

How many molecules are in 1kg of water

Chemistry
1 answer:
Mila [183]3 years ago
8 0

Answer:

334.2× 10²³ molecules

Explanation:

Given data:

Mass of water = 1 Kg ( 1000 g )

Number of molecules = ?

Solution:

Number of moles of water:

Number of moles = mass/ molar mass

Number of moles = 1000 g/ 18 g/mol

Number of moles = 55.5 mol

1 mole contain 6.022× 10²³ molecules

55.5 mol×6.022× 10²³ molecules

334.2× 10²³ molecules

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Answer:

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Explanation:

In chemistry there are many <em>concentration measurements</em> used to describe the mixtures. Some of them are, percent, molarity, molality, and molar fraction, among others.

Percent concentration is a popular one because it is commonly understood and used by the non specialist people, i.e. general public.

The percent concentration of a component is defined as: (amount of component in the mixture / amount of mixture) × 100.

The amounts may be measured in mass units (e.g grams) or volume units (e.g. mililiters).

For solutions, mass percent concentration is:

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Since percentage is used in many profesional and personal activities, most persons use it.

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zvonat [6]

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Which would be attracted most to a magnet?
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Either iron or metal
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A student is doing an experiment to determine the effects of temperature on an object. He writes down that the initial temperatu
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Answer:

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Explanation:

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The expression to convert from Celsius degrees to Kelvin is:

T(K)=T(^{\circ}C)+273.15

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3 years ago
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