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3 years ago

What would happen if I swallowed a mento then drank some coca cola?

2 answers:

7 0

It can't make your stomach explode or anything. When the soda goes into your stomach the fizz comes out of it right away and makes you burp. The mentos doesn't do anything at that point.

Sholpan [36]3 years ago

4 0

Your stomach will bubble lol it might kind of tickle

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(1.) Using Beer's Law, How will the absorbance measured for the solutions change as the concentration of aspirin in solutions in

Vesnalui [34]

Answer:

(1) The absorbance of the aspirin in solutions will increase.

(2) [ASA]f = 3.79x10⁻⁴M

(3) [ASA]i = 3.79x10⁻³M

(4) m ASA = 0.171g

Explanation:

The Beer's Law is expressed by:

$A = \epsilon \cdot l \cdot C$ (1)

where A: is the absorbance of the species, ε: is the molar attenuation coefficient, l: is the pathlength and C: is the concentration of the species

(1) From equation (1), the relation between the absorbance of the species and its concentration is directly proportional, so if the aspirin concentration in solutions increases, the absorbance of the solutions will also increase.

(2) Starting in the given expression for the relationship between absorbance and concentration of ASA, we can calculate its concentration in the solution:

$A = 1061.5 \cdot [ASA]$

$[ASA] = \frac{A}{1061.5} = 3.79 \cdot 10^{-4}M$

Therefore, the aspirin concentration in the solution is 3.79x10⁻⁴ M

(3) To calculate the stock solution concentration, we can use the next equation:

$V_{i} [ASA]_{i} = V_{f} [ASA]_{f}$

where Vi: is the stock solution volume=10mL, Vf: is the solution diluted volume=100mL, [ASA]i: is the aspirin concentration of the stock solution and [ASA]f: is the aspirin concentration of the diluted solution

$[ASA]_{i} = \frac{V_{f} \cdot [ASA]_{f}}{V_{i}} = \frac {100mL \cdot 3.79\cdot 10^{-4} M}{10mL} = 3.79 \cdot 10^{-3} M$

Hence, the concentration of the stock solution is 3.79x10⁻³M

(4) To determine the aspirin mass in the tablet, we need to use the following equation:

$m_{ASA} = \eta_{ASA} \cdot M_{ASA} = [ASA]_{i} \cdot V_{0} \cdot M_{ASA}$

where η: is the aspirin moles = [ASA]i V₀, M: is the molar mass of aspirin=180.158g/mol, V₀: is the volume of the volumetric flask=250mL and [ASA]i: is the aspirin concentration in the volumetric flask which is equal to the stock solution=3.79x10⁻³M

$m_{ASA} = 3.79 \cdot 10^{-3} \frac{mol}{L} \cdot 0.250L \cdot 180.158 \frac{g}{mol} = 0.171 g$

Then, the aspirin mass in the tablet is 0.171 g.

I hope it helps you!

5 0

3 years ago

PLEASE HELP!! 30 points!!

11Alexandr11 [23.1K]

Answer:

bro sorry I haven't learnt this imma ask my friends to help you soon...

6 0

2 years ago

The density of a liquid can be determined by weighing a known volume of the liquid in a graduated cylinder. The data from the ex

Readme [11.4K]

The density of a liquid is the ratio of its mass to its volume. It is an extensive property even though mass and volume are both intensive properties. At a certain temperature and pressure, the density of a liquid is constant. The solution is as follows:

Density = Mass of liquid/Volume of liquid
Mass of liquid = Mass of liquid and cylinder - Mass of cylinder
Mass of liquid = 12 g - 10.8 g = 1.2 g

Density = 1.2 g/7.4 mL
Density = 0.162 g/mL

7 0

3 years ago

A neutral boron atom has 6 neutrons and 5 electrons. How many protons does it have? A. 4 B. 5 C. 6 D. 7

nalin [4]

For an atom to be neutral the protons and the electrons should be equal.
Therefore the number of protons are 5
So A is the answer.

8 0

3 years ago

Read 2 more answers

Why do polar compounds tend to have higher melting boiling points than nonpolar compounds?

timurjin [86]

Polar compounds have permanent dipole-dipole interactions as well as induced dipole-dipole interactions. As there are more stronger intermolecular forces, it takes more energy for these forces to be broken and therefore higher heat to melt and boil them

3 0

4 years ago