Answer:
Beta rays are electrons.
Explanation:
A neutron in the nucleus of a radioactive atom decays into a proton and an electron, which is emitted from the atom.
The answer is the letter “c”
Answer:
D. 4/2 He corresponds to an alpha particle.
Dew forms when the air just above the ground is cooled to its dew point. The air above the ground is cooled because the ground radiates heat into space. If there are clouds overhead the clouds reflect the heat back to the ground so it does not cool and o dew forms. If it is windy then the air just above the ground to the dew point and no dew forms. Thus to form dew you need a still clear keeps on getting mixed with the air higher up and the air does not cooled to the dew point and no dew forms.
<u>Given:</u>
Volume of wine = 100 ml
Initial Mass of ethanol = 12.0 g
Mass of acetic acid formed = 4.00 g
<u>To determine:</u>
% ethanol converted to acetic acid
<u>Explanation:</u>
Molar mass of C2H5OH (ethanol) = 46 g/mol
Molar mass of C2H4O2 (acetic acid) = 60 g/mol
The reaction of ethanol in air is:
C2H5OH + O2 → C2H4O2 + H2O
Based on the stoichiometry: 1 mole of ethanol produces 1 mole of acetic acid
Moles of ethanol initially present = mass of ethanol/molar mass
= 12/46 = 0.2609 moles
Moles of acetic acid produced = moles of ethanol converted
= 4/60 = 0.0667 moles
Mass of ethanol converted = Moles of ethanol * molar mass
= 0.0667 * 46 = 3.07 g
% ethanol converted = (mass of ethanol converted/initial mass )*100
% converted = (3.07/12.0) *100 = 25.6%
Ans: 25.6% of ethanol gets converted to acetic acid
