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2 years ago

How many atoms of Nitrogen in 4.3 moles?

Chemistry

1 answer:

scZoUnD [109]2 years ago

7 0

Answer:

4.3moles contains 2.08×10(to the power of)24 atoms.

the relationship between atoms and moles

1mole atoms=6.022×10(to the power of)23

4.3mol×6.022×10

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Phuong trinh phan ung ohc cho +02

scZoUnD [109]

Answer:

yes

hope this helps!!!!

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2 years ago

Need to complete the chart

GalinKa [24]

Answer:

Row 1

$[H^+]=1.8\times 10^{-6}M$

$pH=-\log[H^+]=-\log[1.8\times 10^{-6}]=5.7$

pOh=14-pH=14-5.7=8.3

$pOH=-\log[OH^-]$

$[OH^-]=0.5\times 10^{-8}M$

Hence, acidic

Row 2

$[OH^-]=3.6\times 10^{-10}M$

$pOH=-\log[OH^-]=-\log[3.6\times 10^{-10}]=9.4$

pH=14-pOH=14 - 9.4 = 4.6

$pH=-\log[H^+]$

$[H^+]=2.6\times 10^{-5}M$

Hence, acidic

Row 3

pH = 8.15

$[H^+]=0.7\times 10^{-8}M$

pOH=14-pH=14 - 8.15 = 5.8

$pOH=-\log[OH^-]$

$[OH^-]=1.5\times 10^{-6}M$

Hence, basic

Row 4

pOH = 5.70

$[OH^-]=1.8\times 10^{-6}M$

pH=14-pOH=14 - 5.70 = 8.3

$pH=-\log[H^+]$

$[H^+]=0.5\times 10^{-8}M$

Hence, basic

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3 years ago

Which of the following does the internal energy of an ideal gas depend upon?

Serggg [28]

Answer:

The correct option is: a. The internal energy depends upon its temperature.

Explanation:

Ideal gas is a hypothetical gas that obeys the ideal gas law. The equation for the ideal gas law:

P·V=n·R·T

Here, V- volume of gas, P - total pressure of gas, n- total mass or number of moles of gas, T - absolute temperature of gas and R- the gas constant

Also, according to the Joule's second law, the internal energy (U) of the given amount of ideal gas depends on the absolute temperature (T) of the gas only, by the equation:

$U = c_{V}nRT$

Here, $c_{V}$ is the specific heat capacity at constant volume

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3 years ago

What is respiration? Explain in your own words

Black_prince [1.1K]

Answer:

breathing

Explanation:

Your welcome lol

hope this helps :) pls give brainliest

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2 years ago

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Which statement describes the periodic law?

mr_godi [17]

Answer is: elements in the same group have similar chemical properties.
Periodic law is the arrangement of the elements in order of increasing atomic number.
For example all alkaline metals (I group of periodic table, Na, K, Cs...) loose one electron in chemical reaction and react vigorously with water.

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3 years ago

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