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KonstantinChe [14]
3 years ago
14

How does the quantum theory of atoms explain the nature of the emission-line spectrum of hydrogen?

Chemistry
1 answer:
Oliga [24]3 years ago
4 0

Answer:

Niels Bohr The electron in a Hydrogen atoms can only circle the nucleus in certain paths or orbits.

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If the density of an ideal gas at stp if found to be 0.0902 g/l, what is its molar mass?
lisabon 2012 [21]
P=0.0902 g/l
v=22.4 l/mol   (stp)

M=vp

M=22.4 l/mol * 0.0902 g/l=2.020 g/mol

M=2.020 g/mol
4 0
3 years ago
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How many grams (g) are in 0.250 moles of copper?
MissTica

Answer:

15.89grams

Explanation:

The mass of a substance can be calculated from it's mole value by using the formula:

mole = mass/molar mass

According to this question, there are 0.250 moles of copper. Hence, the mass of copper can be calculated as follows:

Molar mass of Cu = 63.55g/mol

0.250 = mass/63.55

mass = 0.250 × 63.55

mass = 15.8875

Mass of Cu in 0.250mol is 15.89grams.

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2 years ago
Definition: this is information from an experiment that can be assigned a number or a quantity and can often be used to construc
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The answer is “data”
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3 years ago
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A package of chips weighs 45 grams. How much is that in kilograms?
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Answer:

1000g=1kg

45g=?

45/1000

0.045kilograms

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What question could you ask about the components of two atoms to find out if the atoms are of the same elements or of different
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