An example is when on a seesaw if a kid is on one side and an adult is on the other then it is unbalanced because the adult weighs more
The simple principle for solute dissolution in a particular solvent is "like dissolves like". In the case of water, a solute will dissolve if it is polar. This is because water is a polar solvent. A polar substance is one which has particles that have a net charge on them. This net charge produces forces of attraction. When a polar solute is added to water, the water molecules are attracted to the solute particles and they attach to them. After attaching to the water molecules, the solute particles are dispersed throughout the water. Therefore, the answer is molecules or ions of a solute spread throughout the water molecules<span>.</span>
Answer:
Krypton is named after the Greek word that means "secret." Which explains why krypton was most likely given this name? Krypton is a noble gas, so it was difficult for chemists to find it, as though it was a secret.
Explanation:
Answer:
Molarity = 0.13M
Explanation:
n=m/M = 4.87/74.55= 0.065mol, V= 500ml= 0.5dm3
Applying
n= C×V
0.065= C×0.5
C= 0.13M
Answer:
709415.584 g
Explanation:
This is a heat capacity problem. We use the formula below to calculate.
Q=mcΔT
where Q is the quantity of heat
m is the mass of substance
ΔT is the change in temperature of substance( T2-T1).
Q= 9.5MJ = 9.5*10^(6}J
C.P = 30.8J/(K.mol)
temperature of sodium increases by 10°C which means our final temperature in kelvin T2 will be 510K
initial temperature T1= 500K
m= Q/[c (T2-T1)]
m= 9.5*10^(6}/ {30.8(510-500)]
m= 30844.156 mol of Na
Converting to grams we multiply by the molar mass of Na.
molar mass of Na = 23
mass of Na= 30844.156 *23
=709415.584 g
