Answer:
The answer is D. New African violet plants can grow from leaves cut off of existing
If the precipitate of CaSO4 was weighed before all of the
water has evaporated, therefore this will lead to a miscalculation on the
number of moles of CaSO4. During the calculation, the mass of the water will be
included hence there will be higher number of moles than what is correct.
The correct answer is blue
Answer:
Explanation:
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Answer:
The Relative Formula Mass of Fe(NO₃)₂ is 179.8524 grams
Explanation:
The Relative Formula Mass is the mass of one mole of a compound expressed in grams, obtained by adding together the Relative Atomic Masses, RAM, of the elements which makes the compound
The Relative Formula Mass of a compound is the same as its Relative Molecular Mass
The relative formula mass of Fe(NO₃)₂ is given as follows;
The relative atomic mass of Fe = 55.845 amu
The relative atomic mass of nitrogen, N = 14.0067 amu
The relative atomic mass of oxygen, O = 15.999 amu
Therefore, we have;
The formula mass of Fe(NO₃)₂ = (55.845 + 2×(14.0067 + 3×15.999)) amu = 179.8524 amu
The Relative Formula Mass of Fe(NO₃)₂ = 179.8524 grams.