Answer:
yield = 8501.96 g H3PO4
Explanation:
2344.44 g H20 × (1 mol H2O/18.01528 g H20)
= 130.14 mol H20
130.14 mol H2O × (4 mol H3PO4/6 mol H2O)
= 86.76 mol H3PO4
86.76 mol H3PO4 × (97.994 g H3PO4/1 mol H3PO4)
= 8501.96 g H3PO4
Answer:
D. a solution made by mixing 100 mL of 0.100 M CH3COOH and 50 mL of 0.100 M NaOH
Explanation:
Buffer solutions are the solutions which can resist the change in the pH up to some extent.
The pH of a buffer solution can be measured by the equation known as Henderson–Hasselbalch equation.
pH=pKa+log[base]/[acid]
Buffer solutions are the solutions of either weak acid and conjugate base of it or weak base and conjugate acid of it.
Hence, a weak acid and a strong base can result in weak acid and it's conjugate and can acts as a buffer.
Option D is correct.
Answer is: a suspension.
Suspension is a heterogeneous mixture (solute particles do not dissolve), that contains solid particles (for example nickel sulfide or NiS) sufficiently large for sedimentation.
The internal phase (solid nickel sulfide) is dispersed throughout the external phase (water).
Another example of a suspension is sand in water.
8Zn + S8 => 8 ZnS
this reaction can be categorized in two types of reactions.
1) Combination reaction : because Zn reacts with S and form ZnS means Zn combines with S to form a compound ZnS
2) Redox reaction: because here exchange of electrons take place means during reaction one get oxidized and other reduced, therefore it's also a Redox reaction