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nordsb [41]
4 years ago
14

The porticos inside a ballon are experiencing increase in average

Chemistry
1 answer:
Korolek [52]4 years ago
3 0

Answer:

The particles experience a higher gas pressure inside the balloon.

Explanation:

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The density of no2 in a 4.50 l tank at 760.0 torr and 25.0 °c is ________ g/l.
kap26 [50]
From  ideal  gas  equation   that   is   PV=nRT
n(number of  moles)=PV/RT
P=760 torr
V=4.50L
R(gas  constant =62.363667torr/l/mol
T=273 +273=298k
n  is   therefore   (760torr x4.50L) /62.36367 torr/L/mol  x298k  =0.184moles
the  molar  mass  of  NO2 is  46  therefore  density=  0.184  x  46=8.464g/l
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How is an electrolytic cell different from a galvanic cell?
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How many cm is equal to 1450 nm?
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The answer is D; 1.45 x 10^-4

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Janet hikes a trail at a local forest each day. The trail is 3.6 miles long, and she hiked five days in the past week. How many
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Mehtyl alcohol is called wood spirit. Its molecular formula is CH3OH. Calculate the number of moles that would contain 2.5*10^21
Phoenix [80]

The 2.5 x 10²¹ molecules of CH₃OH have 0.00415 moles.

<h3>What is the mole concept?</h3>
  • The Mole concept is used to express the amount of substance conveniently.
  • A mole is defined as the amount of substance that contains exactly 6.022 x 10²³ elementary particles of the given substance. Here, elementary particles refer to atoms, molecules, or ions.
  • This fixed number  6.022 x 10²³ is known as Avogadro Number and is denoted by N_A
<h3>How to calculate the number of moles?</h3>

The number of moles is given by

n=\frac{m}{M}

When given mass = molar mass of a substance, then no of moles is equal to 1 which is equivalent to 6.022 x 10²³.

We also know,

1 mole has 6.022 x 10²³ molecules of CH₃OH

According to the mole concept,

6.022 x 10²³ molecules of CH₃OH is equal to 1 mole

2.5 x 10²¹molecules of CH₃OH is equal to \frac{2.5\times10^2^1}{6.022 \times 10^2^3} moles

Thus, 2.5 x 10²¹molecules of CH₃OH are equal to 4.15 x 10⁻³ moles or 0.00415 moles

Learn more about the mole concept:

brainly.com/question/1427235

#SPJ1

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