Answer:
pH = pKa + log (33.7 mm / 26.3 mm)
Explanation:
Initial pH = 6.83
If we add a strong base, we expect that pH would be more alkaline
Initially we have: 60 mL . 0.50M = 30 mmoles of acid
Now, we add the base:
3.7 mL . 1.00 M = 3.7 mmmoles of base
Concentration of acid: 30 mmoles - 3.7 mmoles of base = 26.3 mm
Concentration of salt: 30 mmmoles + 3.7 mmoles of base = 33.7 mm
pH = pka + log (33.7 mm / 26.3 mm)
Information of pKa is missing
Answer:
<em>The flow of thermal energy in a system, at constant atmospheric pressure AND at thermodynamic standard temperature and pressure.</em>
The answer is: the rate of reaction is 850 g/min.
n(P₄O₁₀) = 1.5 mol; amount of product.
M(P₄O₁₀) = 283.9 g/mol; molar mass of phosphorus(V) oxide.
m(P₄O₁₀) = n(P₄O₁₀) · M(P₄O₁₀).
m(P₄O₁₀) = 1.5 mol · 283.9 g/mol.
m(P₄O₁₀) = 425.85 g in 30 seconds.
Make proportion: 425 g : 30 s = m(P₄O₁₀) : 60 s.
m(P₄O₁₀) = 850 g in 60 s.
Answer:
0. 000115
Explanation:
A percentage is defined as a ratio with a basis of 100 as total substance. Convert a percentage to decimal implies to divide the percentage in 100 because decimal form has as basis 1.
For the isotopic forms:
1H: 99.98% → As percent.
99.98% / 100 = 0.9998 → As decimal form.
2H: 0.0115% → As percent.
0.0115% / 100 = <em>0. 000115</em>→ As decimal form.
Answer:
Temperature and volume are directly related.
The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure. :)
