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mihalych1998 [28]
3 years ago
14

PLEASE HURRY LIMITED TIME

Chemistry
1 answer:
Stolb23 [73]3 years ago
3 0
3rd one sorry if it’s wrong
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Gases present in atmosphere are in ionic form true or false​
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false

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An exacuted glass vessel weighs 50 g when empty, 148g when filled with an liquid of density o.989/cc and 50.5 g whenfilled with
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MW of gas : 124.12 g/mol

<h3>Further explanation  </h3>

Density is a quantity derived from the mass and volume  

Density is the ratio of mass per unit volume  

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of density  

The unit of density can be expressed in g/cm³ or kg/m³  

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\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}

ρ = density  

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glass vessel + liquid = 148 ⇒ liquid = 148 - 50 =98 g

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\tt V=\dfrac{m}{\rho}=\dfrac{98}{0.989}=99.1~ml

An ideal gas :

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\tt PV=\dfrac{mass(m)}{MW}.RT\\\\MW=\dfrac{m.RT}{PV}\\\\Mw=\dfrac{0.5\times 0.082\times 300}{1\times 0.0991}=124.12~g/mol

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3 years ago
What is the difference between boiling point and normal boiling point?​
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The boiling point is the temperature at which the vapor pressure equals the pressure of gas.

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Explanation:

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How many single covalent bonds can halogens form?
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Where is the genetic code located again in the dna molecule again?
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The DNA is in the nucleus.

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