The Arrhenius acid is a compound that release hydrogen ion (H⁺) when being dissolved in water.
Answer:
Examples of radioactive isotopes include carbon-14, tritium (hydrogen-3), chlorine-36, uranium-235, and uranium-238.
B, THE PH OF ACID IS ALWAYS BETWEEN 0 AND 7, BUT REMEMBER THAT 7 IS NEUTRAL
The mass of Au is 19.7 g
The chemical reaction may be
Au₂S₃ + 3H₂ → 2Au + 3H₂S
1 mole of Au₂S₃ gives 2 mole of Au
Then 0.0500 mol of Au₂S₃ gives
0.0500 × 2 / 1
= 0.10 moles.
To find mass
Mass = moles × molar mass
Moles = 0.10.
Molar mass = 197 g
Mass = 0.10 × 197
= 19.7 g
Hence the mass of Au produces is 19.7 g
Learn more about mass on
brainly.com/question/24550995
#SPJ4