Number of moles ( substance x ):
1 mole --------- 58.45 g/mol
? mole --------- 326.0 g
326.0 x 1 / 58.45 => 5.577 moles
heat of fusion:
hf = Cal / moles
hf = 4325.8 Cal / 5.577 moles
hf = 775.65 cal/mol
hope this helps!
Answer: P₂=0.44 atm
Explanation:
For this problem, we are dealing with temperature and pressure. We will need to use Gay-Lussac's Law.
Gay-Lussac's Law: 
First, let's do some conversions. Anytime we deal with the Ideal Gas Law and the different laws, we need to make sure our temperature is in Kelvins. Since T₂ is 64°C, we must change it to K.
64+273K=337K
Now, it may be uncomfortable to use kPa instead of atm, so let's convert kPa to atm.
Since our units are in atm and K, we can use Gay-Lussac's Law to find P₂.
P₂=0.44 atm
Pure water would be classified as non-conductor since it does not allow the flow of current into the solution. It does not contains any ions or free electrons so it cannot allow the flow of current into the system. It can allow current only when any impurities is present like salts.
Area where magnet is present - magnetic feild
the 2 ends are the poles
magnetic in presence is temporary and always magnetic is permanent
opposites is dipolar<span />
One
molar mass NaCl
Na = 23
Cl =35.5
Molar mass = 58.6
mols = 450 / 58.5
mols = 7.69 mols
Concentration = mols / L
mols = 7.69
Volume = 4.5 kg = 4.5 L [1 liter weighs 1 kg]
C = 7.69 mol / 4.5 L
C = 1.71 mol/L
The question is unclear. I'm taking this to mean that you don't change the number of moles; you merely add 0.5 L to the volume.
Answer C = 7.69 / 5L = 1.54 mol / L
Two
I'm going to leave this. The wording just is not clear.
Three
More than you could grow in the entire planet earth for many centuries.
Ratio of sugar = 10 / (40 + 10 + 500) = 10 / 550 = 1:55 or 0.0182 to 1
Four
Guava Juice = (36 / 100 ) * 100% = 36%
Water = (64/100 ) * 100 = 64%
