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3 years ago

Ethylene glycol (antifreeze) has a density of 1.11 g/cm3.

Chemistry

1 answer:

disa [49]3 years ago

7 0

Hope this helps you.

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n-Butane fuel (C4H10) is burned with the stoichiometric amount of air. Determine the mass fraction of each product. Also, calcul

tia_tia [17]

Answer:

0.1852
0.0947
0.7201
3.0345 kg CO $_{2}$ / Kg C $_{4}$ H $_{10}$
15.3848 Kg air / kg C $_{4}$ H $_{10}$

Explanation:

Molar masses of each product are :

Butane = 58 kg /kmol

Oxygen = 32 kg/kmol

Nitrogen = 28 kg/kmol

water = 18 kg/kmol

1) Calculate the mass fraction of carbon dioxide

= ( 4 * 44 ) / ( (5 * 18) + (4 *44 )+ (24.44 * 28) )

= 176 / 950.32

= 0.1852

2) Calculate the mass fraction of water

= ( 5 * 18 ) / (( 5* 18 ) + ( 4*44) + ( 24.44 * 28 ))

= 90 / 950.32

= 0.0947

3) Calculate the mass fraction of Nitrogen

= (24.44 * 28 ) / ((4 * 44 ) + ( 24.44 * 28 ) + ( 5 * 18 ))

= 684.32 / 950.32

= 0.7201

4) Calculate the mass of Carbon dioxide in the products

Mco2 = ( 4 * 44 ) / 58 = 3.0345 kg CO $_{2}$ / Kg C $_{4}$ H $_{10}$

5) Mass of Air required per unit of fuel mass burned

Mair = ( 6.5 * 32 + 24.44 *28 ) / 58 = 15.3848 Kg air / kg C $_{4}$ H $_{10}$

5 0

3 years ago

An object with a mass of 0.225 kg and density of 2.89 g/cm3 measures 34mm in length and 46mm in width. what is the hight of the

Hitman42 [59]

4.15760869565 cm or 41.5760869565

8 0

3 years ago

A type of plate boundary that is transform faults (easily seen where they cut at right angles to the mid-ocean ridges) A.) conve

34kurt

The answer is Option C (Divergent Plate Boundary)

Mapping efforts have shown that mid-ocean ridges are discontinuous structures that cut at right angles to its length at various transform faults. They typically demarcate the boundary between two tectonic plates, and are therefore called divergent plate boundaries.

8 0

3 years ago

POINTSSS!!!!!!

Lelu [443]

1 mole CO₂----------- 6.02x10²³ molecules
4 moles CO₂ ---------- ??

4 x ( 6.02x10²³) / 1 =

= 2.41 x 10²⁴ / 1 => 2.41 x 10²⁴ molecules of CO₂

Answer C

4 0

3 years ago

In which example is matter changing

just olya [345]

A) heating a pan of water until the water is all gone because then it would change from a liquid top a gas.

6 0

3 years ago