Answer: 2.21 x
molecule
To answer this question, you need to know the formaldehyde molecular mass.
Formaldehyde molecular weight would be 12+ 1(2) + 16= 30 g/mol
After knowing the molecular mass you can count how many molecules by multiplying it by Avogadro's number. The calculation would be:
0.11g / (30g/mol) x 6.022140857 ×
= 0.02208 x
= 2.21 x
Because the bond order in an oxygen gas is shown to be equal to 2, the idea furthermore supports the prediction of the molecular orbital theory in the paramagnetism of oxygen gas. This theory is primarily used when electrons are not included in the individual bonds for determining molecular structure.
Answer:
Explanation:
= Mass of metal = 19 g
= Specific heat of the metal
= Temperature difference of the metal =
V = Volume of water = 150 mL =
= Density of water =
= Specific heat of the water = 4.186 J/g°C
= Temperature difference of the water =
Mass of water
Heat lost will be equal to the heat gained so we get
The specific heat of the metal is .