First, we have to get how many grams of C & H & O in the compound:
- the mass of C on CO2 = mass of CO2*molar mass of C /molar mass of CO2
= 0.5213 * 12 / 44 = 0.142 g
- the mass of H atom on H2O = mass of H2O*molar mass of H / molar mass of H2O
=0.2835 * 2 / 18 = 0.0315 g
- the mass of O = the total mass - the mass of C atom - the mass of H atom
= 0.3 - 0.142 - 0.0315 = 0.1265 g
Convert the mass to mole by divided by molar mass
C(0.142/12) H(0.0315/2) O(0.1265/16)
C(0.0118) H(0.01575) O(0.0079) by dividing by the smallest value 0.0079
C1.504 H3.99 O1 by rounding to the nearst fraction
C3/2 H4/1 )1/1 multiply by 2
∴ the emprical formula C3H8O2
It could be Nitrous oxide
Mass=volume x density
if we have mass and density we can calculate volume using the formula: volume=mass/density
volume of the displaced water = 600g/19.3g/cm3
volume = 31.09cm3
Like in general, or is there something u didn't put?<span />
Answer:
C) Fluorine has the strongest tendency to attract electrons.
Explanation:
Electronegativity is the tendency of the atom in a covalent bond to attract the shared pair of electron towards itself.
Down the group, size increases which means that the nucleus become far from the valence electrons and thus decreased electronegativity as there will be less tendency to attract the shared electrons.
Fluorine and iodine are in the same group and thus fluorine has higher tendency to attract electrons and thus has the highest electronegativity.
