Answer:
the weak diprotic acid is H2PO4
Explanation:
Diprotic acids are acids when ionized would 1 mole of hydrogen ion.
Answer:
Explanation:
1 standard deviation range will look like: [average - SD, average + SD]
Here the miximum value will be: average - SD = 2.6 - 0.80 = 1.80 ml
and the maximum value will be: average + SD = 2.6 + 0.80 = 3.40ml
Answer:
35.1 g
Explanation:
Given data:
Mass of Al(OH)₃ = 100 g
Mass of water formed = ?
Solution:
Chemical equation:
2Al(OH)₃ → Al₂O₃ + 3H₂O
Number of moles of Al(OH)₃:
Number of moles = mass/molar mass
Number of moles = 100 g/ 78 g/mol
Number of moles = 1.3 mol
now we will compare the moles of Al(OH)₃ with water.
Al(OH)₃ : H₂O
2 : 3
1.3 : 3/2×1.3 = 1.95
Mass of water produced:
Mass = number of moles ×molar mass
Mass = 1.95 mol × 18 g/mol
Mass = 35.1 g
Answer: I'm pretty sure the first 2 are d and the last one, I'm too lazy to figure that out