Answer:
iron
Explanation:
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10.5 milliliters of 3.5 M zinc hydroxide react completely with 15.0 milliliters of 4.9 M nitric acid.
<h3>What is molarity?</h3>
It is a unit of concentration equivalent to moles of solute per liter of solution.
- Step 1: Write the balanced equation.
Zn(OH)₂ + 2 HNO₃ ⇒ Zn(NO₃)₂ + 2 H₂O
- Step 2: Calculate the reacting moles of Zn(OH)₂.
10.5 mL of 3.5 M Zn(OH)₂ react.
0.0105 L × 3.5 mol/L = 0.037 mol
- Step 3: Calculate the reacting moles of HNO₃.
The molar ratio of Zn(OH)₂ to HNO₃ is 1:2.
0.037 mol Zn(OH)₂ × 2 mol HNO₃/1 mol Zn(OH)₂ = 0.074 mol HNO₃
- Step 4: Calculate the molarity of HNO₃.
[HNO₃] = 0.074 mol / 0.0150 L = 4.9 M
10.5 milliliters of 3.5 M zinc hydroxide react completely with 15.0 milliliters of 4.9 M nitric acid.
Learn more about molarity here: brainly.com/question/26873446
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Potassium Hydroxide (KOH) when added to the solution would give the highest pH
Explanation:
Bases or Alkali are associated with high pH while Acidic substances are represented by lower pH value.
In the given option
HCl- is a strong acid hence would have pH less than 7
H2SO4- also an acid with a pH less than 7
KOH- base with a pH higher than 7
H20-neutral compound with pH as 7
KOH is a very strong base and dissociates in aqueous solution to give it's corresponding metallic ion and hydroxyl ions (OH-) which are characteristic property of any base.
Answer: The ions which are not spectator ions are 
and 
Explanation:
Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.
The given chemical equation is:
The ions which are present on both the sides of the equation are 
and 
and are spectator ions.
Thus the net ionic equation is:
Hence, the correct answer is and
