At what the pressure, in atmospheres, that O2, gas at 75°C has a density of 2.00 g/L

Commercial products commonly report concentration in terms of "percentage." Using this

Stella [2.4K]

The answer to the question is 0.8055 as the answer should not include units in it.

Molarity (M) = n/v

n = moles of solute

v = liters of solution

According to question

1% solution → 1 gram of solute for 100 milliliters of solution

2% solution → 2 grams of solute for 100 milliliters of solution

6% NaClO solution → 6 grams of NaClO (solute) for 100 milliliters of solution

Molar mass of NaClO = (22.98 + 35.5 + 16)g/mol = 74.48 g/mol

Atomic mass of Na = 22.98 g/mol

Atomic mass of Cl = 35.5 g/mol

Atomic mass of O = 16 g/mol

1 mol NaClO = 74.48 grams NaClO

74.48 grams NaClO = 1 mol NaClO

6 grams NaClO = (1×6) / 74.48 mole = 0.08055 mole

As unit molarity is mole / liter

So 100 milliliters = 0.1 liters

1 liter = 1000 milliliters

100 milliliters = 100/1000 liters = 0.1 liters

Molarity of NaClO = moles of solute (NaClO) / liters of solution or volume of solution

Molarity of NaClO = 0.08055 / 0.1 mole/L = 0.8055 mole/L

As in question it is mentioned that 'Do not type units into your answer'

So, Molarity of NaClO in clorox bleach = 0.8055

Thus we find out the value of molarity of NaClO in Clorox bleach which came out to be 0.8055 as we dont have to give the answer with units.

Learn more about Molarity here:

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8 0

2 years ago

1. Explain what is in a buffer. Discuss the function of a buffer. How will pH change when small amounts of acids or bases are ad

Nastasia [14]

Answer:

(1) See below, (2) About 8.4 pH, (3) About 3.981 * 10⁻⁶ mol dm⁻³

Explanation:

1. A buffer is a solution that resist pH when adding a basic or acidic compound. It's purpose is to neutralize added acids and bases.

2. Remember that the formula for pH is -log [H+]. We have a 0.1 M solution of baking soda in water with [H+] of about 4.0 × 10⁻⁹. Therefore we can calculate the pH as follows...

pH = -log (4.0 × 10⁻⁹)

pH = -(-8.39794...) = (About) 8.4 pH of 0.1 M of baking soda

3. This question has a similar set up...

pH = -log [H+]

[H+] = inverse of log^- pH

[H+] = 10^-5.4 = (About) 3.981 $*$ 10⁻⁶

4 0

3 years ago

What is a closed system?

ddd [48]

I believe the correct answer is D

7 0

3 years ago

Read 2 more answers

"Which of the following processes takes place in the cytosol of a eukaryotic cell?" View Available Hint(s) Which of the followin

Rufina [12.5K]

Answer:

The correct answer is Glycolysis.

Explanation:

Glycolysis is a catabolic process that deals with the breakdown of glucose by 10 enzyme catalyzed steps to generate the end product pyruvate.

Glycolysis take place in the cytosol of an eukaryotic cell because the concentration of glucose and enzymes that catalyzes the break down of glucose remain significantly high in the cytosol.

6 0

4 years ago

A ball has 2 kg* m/s of momentum when thrown with a velocity of 8 m/s outwards. Find the mass of the ball.

Advocard [28]

Answer:

$\large \boxed{\text{0.25 kg}}$

Explanation:

We can use the formula for momentum to calculate the mass.

$\begin{array}{rcl}p & = & mv\\2 & = & m \times 8\\m & = & \dfrac{2}{8}\\\\& = & \textbf{0.25 kg}\\\end{array}\\\text{The mass of the ball is $\large \boxed{\textbf{0.25 kg}}$}$

8 0

3 years ago

At what the pressure, in atmospheres, that O2, gas at 75°C has a density of 2.00 g/L​

At what the pressure, in atmospheres, that O2, gas at 75°C has a density of 2.00 g/L