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WINSTONCH [101]
3 years ago
6

The process of determining the composition of a sample by conducting chemical tests is called qualitative analysis.

Chemistry
1 answer:
Vilka [71]3 years ago
7 0
I think it’s actually called an ElementaI analysis, so this would be false, hope this helps.
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5. Calculate the decrease in temperature when 6.00 L at 20.0 °C is compressed to 4.00 L.
Kazeer [188]

Answer: 195.3 K

Explanation: Use Charles Law to get T2

Charles Law V1 / T1 = V2 / T2

Derive the equation to find T2

T2 = V2T1 / V1

Convert temperature into K

T1 = 20.0 °C + 273 = 293 K

Substitute the values:

4.00 L x 293 K / 6.00 L = 195. 3 K

5 0
3 years ago
Why males on average have VO2max than females?
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6 0
3 years ago
Explain how acid–base indicators can be used to determine the approximate pH of a substance.
mezya [45]
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5 0
3 years ago
A gas that effuses through a porous cylinder 1.87 times faster than chlorine gas. what is the molar mass and identity.
Rufina [12.5K]
From the Graham's law of effusion;
R1/R2 = √MM2/√MM1
Molar mass of chlorine gas is 71
Therefore;
1.87= √ 71 /√mm1
= 1.87² = 71/mm1 
mm1 = 71/1.87²
         = 71/3.4969
         = 20.3
Thus, the molar mass of the other gas is 20.3 , and i think the gas is neon
6 0
3 years ago
32 gm of O2 to mole of O2
lana [24]

Molar mass of O2:-

\\ \rm\longmapsto 2(16u)=32g/mol

Now

\boxed{\sf No\:of\;moles=\dfrac{Given\:Mass}{Molar\:Mass}}

\\ \rm\longmapsto No\:of\;moles=\dfrac{32}{32}

\\ \rm\longmapsto No\:of\;moles=1mol

5 0
3 years ago
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