The surface waves are the type of seismic waves that produce
the most severe ground movement. This wave is slow in nature and so produces a rolling
effect similar to a surface wave in a pond. This kind of wave is far more
devastating than the P waves and the S waves. The surface waves have the
capacity to shake a building from side to side until it collapses. This kind of
wave moves in a pattern similar to a circle. It actually originates at a point
and then start moving outwards in a circle.
<span> mass of glucose = 0.055 *165 = 9.075 g
vol of methyl alc = 0.185 * 1.87 = 0.346 L = 346 ml
% NaCl ( m/v ) = mass NaCl * 100/ vol of soln
or Vol of Soln = mass NaCl / % NaCl (m/v)
= 32.1 * 100 / 6 = 535 ml the total vol of soln</span>
Answer:
1326.6 × 10⁻²³g
Explanation:
Given data:
Number of atoms of iron = 143 atoms
Average atomic mass of iron = 55.845 amu
Mass of iron = ?
Solution:
It is known that,
55.845 g of iron = one mole of iron = 6.02× 10²³ atoms
For 143 atoms:
143 atoms /6.02× 10²³ atoms × 55.845 g
23.754 × 10⁻²³× 55.845 g
1326.6 × 10⁻²³g
Answer:
Mass = 30.104 g
Explanation:
Given data:
Volume of Cl₂ = 8.80 L
Pressure = 890 torr (890/760 = 1.17 atm)
Temperature = 23°C (23+273 = 296K)
Mass of chlorine = ?
Solution:
PV = nRT
n = PV/RT
n = 1.17 atm × 8.80 L / 0.0821 atm. L. k⁻¹.mol⁻¹ × 296K
n = 10.296 atm. L / 24.30 atm. L.mol⁻¹
n = 0.424 mol
Mass of chlorine:
Mass = number of moles × molar mass
Mass = 0.424 mol × 71 g/mol
Mass = 30.104 g
Answer:
The ratio of carbon and hydrogen atoms = 3.5 : 8
= 7 : 16
Then,the empirical formula is C7H16
