The percent composition of hydrogen is 18.3%.
What is percent composition?
The term percent composition refers to the percentage of a particular component in a compound. It is contained as the ratio of the mass of that component to the total mass multiplied by 100.
From the law of conservation of mass, total mass of beryllium hydride(BeH2) = 85.2 g
Mass of hydrogen = 15.6 g
Percent composition of hydrogen = 15.6 g/ 85.2 g × 100/1 = 18.3%
(4) C8H14 is your answer. A saturated hydrocarbon means that they have no double or triple bonds. C8H14 is an alkyne, which is an unsaturated hydrocarbon.
Answer:
D
Explanation:
the earth's plates move slowly
Answer:
183 K
General Formulas and Concepts:
<u>Chemistry - Gas Laws</u>
Combined Gas Law: PV = nRT
- P is pressure
- V is volume (in Liters)
- n is amount of moles
- R is gas constant -
- T is temperature (in Kelvins)
Explanation:
<u>Step 1: Define</u>
10.0 L
3.00 mol H₂
4.50 atm
<u>Step 2: Find Temperature</u>
- Substitute [CGL]:
- Isolate temperature <em>x</em>:
- Rewrite:
- Evaluate:
<u>Step 3: Check</u>
<em>Round to the nearest whole number.</em>
182.704 K ≈ 183 K
Answer:
Explanation:
Vinylcyclohexane is an example of a cyclic hydrocarbon where the vinyl group (-CH=CH₂ ) attaches itself to an end of a cyclohexane in ring form thereby giving rise to a vinylcyclohexane. The vinyl group are ethylene with a reduction in one hydrogen atom given them the name vinyl.
SOo, when vinylcyclohexane is treated with NBS ( i.e N-Bromosuccinimide a chemical reagent used in organic reactions) ; the bromine in the NBS reacts with the cyclohexane thereby giving rise to a allyl radical first. The allyl radical is resonance stabilized radical with an unpaired electron on the allylic carbon . As a result of stabilization ; a more stable substituted cycloalkene is formed as an intermediate .
This stable substituted cycloalkene intermediate then finally react with a bromine ion to give a major product known as ; (2-bromo ethylidene)cyclohexane.
The diagram emphasizing more on the above explanation can be seen in the attached image below