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Irina18 [472]
1 year ago
15

Calculate each of the following: (a) Mass fraction of Cl in calcium chlorate

Chemistry
1 answer:
Marianna [84]1 year ago
4 0

Mass fraction has been the mass of an individual element with respect to the compound. The mass fraction of chloride in calcium chlorate is 0.171.

<h3>What is meant by a mass fraction?</h3>

Mass fraction has been defined as the ratio of the masses of the individual elements present in a compound to the total mass of the molecule or compound.

The formula for a mass fraction (w) is given as,

Mass fraction (w) = mass ÷ total mass

Given,

Mass of chlorine = 35.453 grams per mole

The molar mass of calcium chlorate (Ca(ClO₃)₂) = 206.98 grams per mole

Substituting and solving the values above as

w = mass of chlorine ÷ total mass of calcium chlorate

w = 35.453 ÷ 206.98

w = 0.171

Therefore, the mass fraction of Cl in calcium chlorate is 0.171.

Learn more about mass fraction, here:

brainly.com/question/14470971

#SPJ4

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H2(g) +C2H4(g)→C2H6(g)
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The bond which breaks energy is positive.
432+614 =1046kJ/mol
Formation of bond energy is negative
2(413) + 347 = 1173 kJ/mol
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7 0
3 years ago
In which or areas on the image dose salinity of the ocean increases
Ronch [10]

Answer and Explanation:

D I believe..

8 0
2 years ago
1. look at the sequence of pictures what happened to the Apple overtime. 2. no chemical was added to the Apple explain why the A
Goshia [24]

Answer: it started too rot over time mold over time and decay and if you cooked a apple it would melt like ice cream cause of the heat waves and if the apple is surrounded by air i think what would happen it would still rot I guess but i wouldnt know for sure cause things with air take time too rot and things with air rot faster and slicing the apple into more pieces would make it decay or rot or mold faster cause its open and accepting everything it sees like bacteria bugs all that

Explanation: like the longer a apple is left half open it starts too rot then mold over time getting all bad and not good too eat or decay

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8 0
2 years ago
Ultraviolet radiation and radiation of shorter wavelengths can damage biological molecules because they carry enough energy to b
Kamila [148]

Answer:

344 nm is the longest wavelength of radiation with enough energy to break carbon-carbon bonds.

Explanation:

C-C(g)\rightarrow 2C(g) ,ΔH = 348 kJ/mol

Energy required to break 1 mole of C-C bond = 348 kJ

Energy required to break 1 C-C bond = E

E = \frac{348,000J}{6.022\times 10^{23}}=5.779\times 10^{-19} J

Energy related with the wavelength of light is given by Planck's equation:

E=\frac{hc}{\lambda }

\lambda =\frac{hc}{E}

=\frac{6.626\times 10^{-34} Js\times 3\times 10^8 m/s}{5.779\times 10^{-19} J}

\lambda =3.44\times 10^{-7} m = 344 nm

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344 nm is the longest wavelength of radiation with enough energy to break carbon-carbon bonds.

5 0
3 years ago
A 4.0 g sample of a solid changes from 20.0 ºC to 36.0 ºC upon addition of 25.0 cal of heat. What is the specific heat of this s
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Answer: c = 0.39 cal/g°C or

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Or we can convert calories to joules.

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= 1.63 J /g°C

8 0
2 years ago
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