The average atomic mass of Neon would simply be the sum of the weighted average of each isotope. That is:
average atomic mass = 0.905 * 20 + 0.003 * 21 + 0.092 * 22
average atomic mass = 20.187 amu
Answer:
Mass = 33.515 g
Explanation:
Given data:
Volume of ammonia = 45.0 L
Temperature = 57.0°C (57 +273 = 330 K)
Pressure = 900 mmHg
Mass of ammonia = ?
Solution:
Formula:
PV = nRT
We will use R = 62.364 (L * mmHg)/(mol * K) because pressure is given in mmHg.
900 mmHg × 45.0 L = n × 62.364L * mmHg/mol * K × 330 K
40500 mmHg.L = n × 20580.12L * mmHg/mol
n= 40500 mmHg.L/ 20580.12L * mmHg/mol
n = 1.9679 mol
Mass of ammonia:
Mass = number of moles × molar mass
Mass = 1.9679 mol × 17.031 g/mol
Mass = 33.515 g
When we multiply or divide the values the number of significant figures must be equal to the less number of significant figures in given value.
Answer:
is the average rate of formation of bromine gas during the same time interval.
Explanation:
The given reaction :
The average rate of consumption of
Rate of the reaction = R
The average rate of formation of
is the average rate of formation of bromine gas during the same time interval.
Answer:
A solvent is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid.
Explanation:
Answer:
Low melting point
Explanation:
Transition metals have the following properties:
Conductivity (Electrical and Thermal)
Malleability (You can hit it with a hammer to mold it)
High melting point