Answer:
The answer is linear Perspective
Answer:
It is a chemical element with an atomic number.
Percent solution of NaCl = 3.26%
Step 1: Determine the mass of NaCl in the initial solution
The initial solution is 25% NaCl, which means there are 25 grams of NaCl for every 100 grams of solution. To find the mass of NaCl in the 75g solution, use this proportion:
(25g NaCl / 100g solution) = (x / 75g solution)
Solve for x:
x = (25g NaCl * 75g solution) / 100g solution
x = 18.75g NaCl
Step 2: Determine the total mass of the diluted solution
Add the mass of water (500g) to the mass of the initial solution (75g):
Total mass = 500g water + 75g solution = 575g diluted solution
Step 3: Calculate the percentage of NaCl in the diluted solution
Use the mass of NaCl from Step 1 and the total mass of the diluted solution from Step 2 to find the percentage by mass:
Percentage = (Mass of NaCl / Total mass of diluted solution) * 100
Percentage = (18.75g NaCl / 575g diluted solution) * 100
Percentage ≈ 3.26%
The percent solution by mass of NaCl in the diluted solution is approximately 3.26%.
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HNO2 -> H+ + NO2-
HA + h20 -> A- + H+ + h20
BOH + h20 -> B+ + OH- + H20
Answer : The correct option is, (4)
Explanation :
Strong acid : Strong acids are those acids which are completely dissociates into ions in water. It dissociates into hydrogen ion and an anion.
Strong base : Strong base are those base which are completely dissociates into ions in water. It dissociates into hydroxide ion and a cation.
In all the given options, option (4) equation shows the complete dissociation of a strong base.
While the other options shows the complete dissociation of an acid.
Answer:
Six
Explanation:
Mᵣ = 46
Aᵣ(C) = 0.522 × 46 = 24
Difference = 22
Less 1 O = -16
Aᵣ(H) = 6
The relative atomic mass of the H atoms is 6.
The molecule contains six hydrogen atoms.