Answer:
2.1 M is the molarity of the HCl solution.
Explanation:
Molarity of HCl solution =
Volume of HCl solution =
Ionizable hydrogen ions in HCl =
Molarity of NaOH solution =
Volume of NaOH solution =
Ionizable hydroxide ions in NaOH =
(neutralization )
2.1 M is the molarity of the HCl solution.
The correct answer is 2.99 helium atoms.
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Answer:
3.25 moles of sodium chloride to grams: 189.3545 grams
Explanation:
1 moles NaCl = 58.44277 gram
Answer:
541.74× 10²³ atoms of C
Explanation:
Given data:
Number of moles of carbon = 89.96 mol
Number of atoms = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ atoms
89.96 mol × 6.022 × 10²³ atoms of C / 1mol
541.74× 10²³ atoms of C
Answer:
T₂ = 221.8 K
Explanation:
Given data:
Initial temperature = 57.9°C ( 57.9+273 =330.9 k)
Initial volume = 75.8 mL
Final volume = 50.8 mL
Final temperature = ?
Solution:
According to Charles's law,
V₁ /T₁= V₂/T₂
T₂ = V₂T₁/V₁
T₂ = 50.8 mL ×330.9 k / 75.8 mL
T₂ = 16809.72 mL.K/ 75.8 mL
T₂ = 221.8 K