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3 years ago

Why does a newly opened can of warm soda have less carbonation than a newly opened can of cold soda?

1 answer:

6 0

Answer is: A.At a constant pressure, gases are less soluble in liquids at higher temperatures. Carbonated drinks lose their fizz at higher temperatures (gases move faster anf have higher energy) and when the carbonated soda is colder (gases move slowe and have less energy), the dissolved carbon dioxide (CO₂) is more soluble and fizzes more when opened.

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The hydrogen halide gases all have the same general formula, HX, where X can be a halogen (F, CI, Br, or I). HCl 2 effuses times

Natali [406]

Answer:

Explanation:

We collected the gas over water; to obtain the true pressure of the gas, we have to correct for the vapor pressure of water. We look up the vapor pressure of water at 24 ºC: 24 torr. The pressure of the evolved gas is, therefore, 738 −24 = 714 torr. 2. We want the molar mass of the

8 0

3 years ago

Procaine hydrochloride ( MW = 272.77 g/mol) is used as a local anesthetic. Calculate the molarity of a 4.666 m solution which ha

fenix001 [56]

Answer:

$\boxed{\text{2.274 mol/L}}$

Explanation:

$b = \dfrac{\text{moles of solute}}{\text{kilograms of solvent}}$

Assume 1 kg water.

1. Moles of P.HCl

Then we have 4.666 mol of P.HCl

2. Mass of P.HCl

n = 4.666 mol × 272.77 g/mol = 1271.1 g

3. Total mass of solution

m = 1000 g + 1271.1 g = 2271.1 g solution

4. Volume of solution

$V = \text{2271.1 g} \times \dfrac{\text{1 mL}}{\text{1.1066 g}} = \text{2052.3 mL} = \text{2.0523 L}$

5. Molar concentration

$\begin{array}{rcl}c & = & \dfrac{\text{moles of solute}}{\text{litres of solution}}\\\\c & = & \dfrac{\text{4.666 mol}}{\text{2.0523 L}}\\\\ & = & \text{2.274 mol/L}\\\end{array}\\$

$\text{The molar concentration of the solution is} \boxed{\textbf{2.274 mol/L}}$

5 0

4 years ago

An atom has at least one positive proton and at least one negative electron. Which of the following is true about the protons an

NikAS [45]

Answer:

proton and electrons orbit close together around a center nucleus

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3 years ago

Read 2 more answers

In a neutralization reaction of a strong acid and strong base, what will the end pH be?

matrenka [14]

The end pH will be 7 if the acid and base were added in the correct amounts in relation to each other.
general formula:
HA+BOH⇒H₂O+AB (AB is the salt produced from the anion in the acid and cation in the base)

7 0

3 years ago

Read 2 more answers

The hydronium ion concentration in a solution at ph 10 has what relationship to the hydronium ion concentration in a solution at

fgiga [73]

Based on your information 1000 times greater than pH 13 is the best I can come up with.

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3 years ago