The mass of the hydrogen is obtained as 0.302 g.
<h3>What is the mass of hydrogen?</h3>
A hydrocarbon is a compound that contains only carbon an hydrogen. The amount of the carbon and the hydrogen can be found by combustion.
The mass of hydrogen can be obtained as follows;
Number of moles of hydrogen =2.7 g/18 g/mol * 2 = 0.302 moles
Now the mass of hydrogen is obtained from;
0.302 moles * 1 g/mol = 0.302 g
Learn more about combustion of a compound:brainly.com/question/14272505
#SPJ1
Answer:
To react with 0.5 moles of Zn 1 mole of HCl is required
Explanation:
Given data:
Number of moles of Zn = 0.50 mol
Number of moles of HCl = ?
Chemical equation:
Zn + 2HCl → H₂ + ZnCl₂
Now we will compare the moles of Zn and HCl through balance chemical equation.
Zn : HCl
1 : 2
0.50 : 2×0.5 = 1 mol
In order to react with 0.5 moles of zinc 1 mole of HCl is required.
Answer:
Niels Bohr
Explanation:
Niel’s Bohr described the atomic model. He in his model showed that an atom is a small positively charged nucleus. Around the positively charged nucleus, electrons orbit in separate orbits.
The electrons in the outermost shell are responsible for the properties associated with an element.
The electrons at different shells have different energy. When an electron jumps from a shell of higher energy to a shell of lower energy, energy is released.
Answer:
In nature the atoms of noble gases do not bond either with other gases or with each other. Helium exists as atoms of Helium not as diatomic molecules. Some of the larger noble gases can be made to form molecules. This does not normally happen in natural conditions.
Explanation:Noble gases are odorless, colorless, nonflammable, and monotonic gases that have low chemical reactivity. The full valence electron shells of these atoms make noble gases extremely stable and unlikely to form chemical bonds because they have little tendency to gain or lose electrons.
2 amu atomic mass units, a scale based on carbon 12