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Komok [63]
3 years ago
15

Arrange the liquids pentane (CH3CH2CH2CH2CH3CH3CH2CH2CH2CH3), pentanol (CH3CH2CH2CH2CH2OHCH3CH2CH2CH2CH2OH), and pentanal (CH3CH

2CH2CH2CHOCH3CH2CH2CH2CHO) in order of decreasing viscosity, surface tension, and boiling point.To rank items as equivalent, overlap them.
Chemistry
1 answer:
murzikaleks [220]3 years ago
6 0

Answer: pentanol>pentanal>pentane

Explanation:

Pentanol will have the highest viscosity, boiling point and surface tension because it has the highest degree of intermolecular interaction. The molecules of pentanol are held together by strong intermolecular hydrogen bonds which raises its boiling point. This degree of intermolecular interaction is absent in pentanal and pentane. They have much lower boiling points with pentane having the lowest boiling point due to the presence of weak London forces.

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Which fatty acid shown above (A or B) is a saturated fatty acid? How do you know?
bonufazy [111]

Answer:

The answer is A.

Explanation:

Saturated fatty acids contain long, unbranched chains of carbon atoms. In addition to that, there are no double bonds within the carbon atoms. Hope this helps :)

5 0
3 years ago
If 86.1 g of nitrogen reacts with lithium how many grams of lithium will react
Dovator [93]
Answer:
             128 g of Li will react with 86.1 g of N₂ to completely consume it.

Solution:

The balance chemical equation is as follow,

<span>                                      6 Li  +  N</span>₂     →     2 Li₃<span>N

According to this equation,

               28 g (1 mole) N</span>₂ reacts with  =  41.64 g (6 moles) of Li
So,
                  86.1 g of N₂ will react with  =  X g of Li

Solving for X,
                      X  =  (86.1 g × 41.64 g) ÷ 28 g

                      X  =  128 g of Li
7 0
3 years ago
A cheetah has been clocked at 112 km/h over a 100-m distance. What is this speed in m/s?
Serhud [2]
M/sec = 112 km / 1 hr / 1 min / 1000 meters
hr / 60 min / 60 sec / 1 km

So the answer is = 31.1 meters/sec
8 0
3 years ago
The by-product of the chlorination of an alkane is​
Elanso [62]

The by-product of the chlorination of an alkane is​  <u>HCl</u>

Explanation:

  • Chlorination is the process of adding chlorine to drinking water to disinfect it and kill germs. Different processes can be used to achieve safe levels of chlorine in drinking water.
  • Chlorination of alkane gives a mixture of different products.
  • When consider mechanism of alkanes chlorination, free radicals are formed during the reaction to keep the continuous reaction.
  • Different alkyl chloride compounds, extended carbon chains compounds and HCl are formed as products in product mixture.
  • Chlorination byproducts, their toxicodynamics and removal from drinking water.
  • Halogenated trihalomethanes (THMs) and haloacetic acids (HAAs) are two major classes of disinfection byproducts (DBPs) commonly found in waters disinfected with chlorine
  • Chlorine is available as compressed elemental gas, sodium hypochlorite solution (NaOCl) or solid calcium hypochlorite (Ca(OCl)2
7 0
3 years ago
Determine the percent water in MgSO4*7H20?
Semmy [17]

Answer:

\% H_2O=51.2\%

Explanation:

Hello!

In this case, since the percent water is computed by dividing the amount of water by the total mass of the hydrate; we infer we first need the molar mass of water and that of the hydrate as shown below:

MM_{MgSO_4* 7H_2O}=120.36 g/mol+7*18.02g/mol\\\\MM_{MgSO_4* 7H_2O}=246.5g/mol

Thus, the percent water is:

\% H_2O=\frac{7*MM_{H_2O}}{MM_{MgSO_4* 7H_2O}} *100\%\\\\

So we plug in to obtain:

\% H_2O=\frac{7*18.02}{246.5} *100\%\\\\\% H_2O=51.2\%

Best regards!

5 0
3 years ago
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