At STP (standard temperature and pressure conditions), 1 mol of any gas occupies 22.4 L
This rule is applied to O₂
22.4 L volume occupied by 1 mol
Therefore 83.4 L occupied by - 1/ 22.4 x 83.4 = 3.72 mol
stoichiometry of O₂ to H₂O is 1:2
then the number of moles of water produced - 3.72 mol x 2= 7.44 mol
mass of water produced - 7.44 mol x 18.01 g/mol = 134.1 g
correct answer is D
Answer:
2
Explanation:
it has a total of 17 valence electrons
Answer:
C3H7NO2
Explanation:
The chemical formula of Alanine is C3H7NO2 and it belongs to almost all food category because it is present in one food of each food category such as dairy products, meat, nuts, soy, and whole grains etc. Alanine is a nonessential amino acid means that it does not directly obtained from the diet but it can be produced by the body using raw materials present in the food.
Answer:
Sound travels more quickly in solids.
Explanation:
That’s because it is the collisions of particles that transmit the energy of the sound waves.
In solids, the particles are packed as tightly as they can get. The energy of the collision passes from one particle to another quite rapidly. For example, the speed of sound in steel is about 6000 m/s (22 000 km/h).
The particles in liquids are further apart, so it takes longer for the sound energy to get from one particle to the next. The speed of sound in water is about 1500 m/s (5400 km/h).
The particles in a gas are relatively far apart, so it takes time for one particle to get to another. The speed of sound in air is about 340 m/s (1200 km/h).
