When determining the percentage by mass of a solution, the mass of the solvent is measured last.
<h3>What is the percentage by mass of a solvent?</h3>
The percentage by mass of a solvent in a solution is the ratio of the mass of the solvent and the mass of the entire solution.
Mathematically, this can be expressed as:
Percentage by mass of solvent = mass of solvent/mass of solution x 100
Thus, given a solution, a weighing balance, an evaporating dish, and a burner:
- The mass of the evaporating dish is determined first (A)
- The mass of the evaporating dish and the solution next (B)
- Next would be to heat the solution to remove the solvent.
- The mass of the evaporating dish plus the residue is then measured (C).
Thereafter, the amount of solvent can then be determined as: (A+B) - C.
More on percentage by mass can be found here: brainly.com/question/16885872
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"Hydrochloric acid (HCl) is an example of an acid. When it dissolves in water, it produces positive hydrogen ions and negative chloride ions (Cl-). This can be represented by the chemical equation: HCl H2O→ H+ + Cl."
Hope this helps! Sorry if it doesn't.
Answer:
Unidentified flying object or fly saucer.
Explanation:
Your answer is
Ca(OH)₂ + 2HNO₃ → Ca(NO₃)₂ + 2H₂O I hope it is at least :P