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bearhunter [10]
3 years ago
9

How many molecules and atoms in 6 moles of P203?

Chemistry
1 answer:
Margarita [4]3 years ago
3 0

Answer:

Element   Symbol   Atomic Mass   # of Atoms   Mass Percent

Oxygen              O  15.9994                        3                     43.656%

Phosphorus       P 30.973761                2               56.344%

Explanation:

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Name a property copper has?
Ilya [14]

Answer:

Explanation:

It is malleable, ductile, and a good conductor of electricity and heat.

4 0
2 years ago
Chalcopyrite is an ore with the composition cufes2. what is the percentage of iron in a 39.6 g sample of this ore? answer in uni
iren2701 [21]
<span>Well it depends on percentage by what, but I'll just assume that it's percentage by mass. For this, we look at the atomic masses of the elements present in the compound. Cu has an atomic mass of 63.546 amu Fe has 55.845 amu and S has 36.065 amu Since there are 2 molecules of Sulfur for each one of Cu and Fe, we'll multiply the Sulfur atomic weight by 2 to obtain 72.13 amu So we have not established the mass of the compound in amus 63.546 + 55.845 + 72.13 = 191.521 That is the atomic mass of Chalcopyrite. and Iron's atomic mass is 55.845 So to get the percentage, or fraction of iron, we take 55.845 / 191.521 Which comes out to 29.15% by mass Mass of the sample is not needed for this calculation, but since the question mentions it I would go ahead and check if the question isn't also asking for the mass of Iron in the sample as well, in which case you just find the 29.15% of 67.7g</span>
5 0
3 years ago
Germanium is a group 4A semiconductor. The addition of a dopant atom (group 3A element) that has fewer valence electrons than th
klasskru [66]

Answer:

Doping with galium or indium will yield a p-type semiconductor while doping with arsenic, antimony or phosphorus will yield an n-type semiconductor.

Explanation:

Doping refers to improving the conductivity of a semiconductor by addition of impurities. A trivalent impurity leads to p-type semiconductor while a pentavalent impurity leads to an n-type semiconductor.

7 0
3 years ago
identify A and B, isomers of molecular formula C3H4Cl2, from the given 1H NMR data: Compound A exhibits peaks at 1.75 (doublet,
siniylev [52]

Answer:

See explaination

Explanation:

please kindly see attachment for the step by step solution of the given problem.

3 0
3 years ago
:PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
siniylev [52]

Answer: :))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))

Explanation:

5 0
3 years ago
Read 2 more answers
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