Answer:
<h3>The answer is 0.33 m/s²</h3>Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
where
m is the mass
f is the force
a is the acceleration
From the question
f = 25 N
m = 75 kg
We have
We have the final answer as
<h3>0.33 m/s²</h3>Hope this helps you
Answer:
The new pH is 10.8031
Explanation:
Given information:
[NaA] = concentration = 2 M
[HA] = concentration = 2 M
V = volume = 1 L
15 g of NaOH added
Question: What is the new pH, pH = ?
Moles of NaA:
Moles of HA:
Moles of NaOH:
The reaction:
HA + NaOH → NaA + H₂O
Moles of NaA = 2 + 0.375 = 2.375 moles
Moles of HA = 2 - 0.375 = 1.625 moles
The value of Ka is 2.3x10⁻¹¹
The pKa:
Applying the Henderson's Hasselbach equation
Answer:
<h2>3 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
From the question we have
volume = final volume of water - initial volume of water
volume = 45 - 30 = 15 ml
We have
We have the final answer as
<h3>3 g/mL</h3>Hope this helps you