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3 years ago

Which temperature and pressure are used as standards for gases?

Chemistry

2 answers:

natta225 [31]3 years ago

5 0

Answer : The correct option is, $0^oC$ , 1 atm

Explanation :

STP : STP stands for standard temperature and pressure of the gas.

As we know that at STP,

The temperature of gas is, $0^oC$ or $32^oF$

The pressure of gas is, $1atm$ or $101.325kPa$

The volume of gas is, 22.4 L

Hence, the temperature and pressure used as standards for gases are, $0^oC$ , 1 atm

qwelly [4]3 years ago

3 0

Answer:

0°C and 1 atm

Explanation:

This are the conditions of temperature and pressure defined by IUPAC as standard.

But also, the definition used by the NIST considerates a temrperature of 20°C and a pressure of 1 atm

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Alkali metals have the lowest electronegativities, while halogens have the highest.

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2 years ago

the hemiacetal below is treated with 18o-labeled methanol (ch3o*h) and acid. where will the label appear in the products?

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The 18o-labeled methanol (CH3O*H) will appear in the products side at position b.

<h3>Position of 18o-labeled methanol in the products</h3>

The 18O label will appear at position b in the product as indicated in the image.

This methoxy group in the product formed in position b comes from the 18O-labeled methanol (CH3OH).

While the oxygens at positions a and c in the product come from the unlabeled hemiacetal.

Thus, the 18o-labeled methanol (CH3O*H) will appear in the products side at position b.

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1 year ago

Match each type of learning to the correct definition

pishuonlain [190]

Answer:

conditioning-the process of associating a stimulus with a good or bad outcome.

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2 years ago

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What are the challenges for a "sustainable" world of lithium ion batteries?

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2 years ago

A sample of a pure compound that weighs 59.8 g contains 27.6 g Sb (antimony) and 32.2 g F (fluorine). What is the percent compos

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Answer:

53.85%

Explanation:

Data obtained from the question include:

Mass of antimony (Sb) = 27.6g

Mass of Fluorine (F) = 32.2g

Mass of compound = 59.8g

Percentage composition of fluorine (F) =..?

The percentage composition of fluorine can be obtained as follow:

Percentage composition of fluorine = mass of fluorine/mass of compound x 100

Percentage composition of fluorine = 32.2/59.8 x 100

= 53.85%

Therefore, the percentage composition of fluorine in the compound is 53.85%

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2 years ago