Answer:
A) 31.22
Explanation:
The reaction of sulfuric acid with NaOH is:
H₂SO₄ + 2 NaOH → Na₂SO₄ + 2H₂O
To solve this problem we need to determine the moles of acid that will react, and, using the chemical equation we can determine the moles of NaOH and the volume that a 0.2389M NaOH solution would require to neutralize it.
<em>Moles H₂SO₄ (Molar mass: 98.08g/mol):</em>
0.9368g * 39.04% = 0.3657g H₂SO₄ * (1mol / 98.08g) =
3.7289x10⁻³moles H₂SO₄
And moles of NaOH that you require to neutralize the acid are:
3.7289x10⁻³moles H₂SO₄ * (2 moles NaOH / 1 mole H₂SO₄) =
7.4578x10⁻³ moles NaOH
Using a 0.2389M NaOH solution:
7.4578x10⁻³ moles NaOH * (1L / 0.2389mol) = 0.03122L = 31.22mL
Right answer is:
<h3>A) 31.22
</h3>
Answer:
1. more slowly than
2. larger than
3. weaker
Explanation:
Acetone molecules are bonded by very weak intermolecular forces when compared to that of the hydrogen bond between water molecules. This makes it very easy for acetone molecules to vaporize easily into its gaseous state, much more faster than water molecules (since the acetone molecules need a lesser amount of energy to break these bonds). Also, the boiling point of liquid acetone is much lower than that of water, meaning that it has a higher vapor pressure than that of water.
A nonmetal and a nonmetal will make molecular compounds like H2O and CO2
Lydia and Damien will select bases that have a small Kb and which are found in the storage cabinet in solutions with high concentrations.
Explanation:
Before choosing a bottle Lydia and Damien should consult a Kb (base dissociation constant) table of bases. The lower the Kb the weaker the base.
Because they were asked by the profesor to select bottles of concentrated bases they will choose the solution that have the highest concentration. Weak bases that are commonly found in laboratories are triethylamine and pyridine.
Learn more:
about weak bases
brainly.com/question/4056439
#learnwithBrainly
Answer:
The answer would be, B. water
Explanation:
If I remember correctly, an abiotic factor is a nonliving condition or thing, as climate or habitat, that influences or affects an ecosystem and the organisms in it. This would make water, the most accurate choice.