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Norma-Jean [14]
3 years ago
6

What does the law of increasing costs say?

Chemistry
1 answer:
ad-work [718]3 years ago
6 0

A. As you make more and more of one good or service, you will also make more and more of another.

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The mole is defined as the amount of a substance containing the same number of particles as exactly 12 g of C-12. The amu is def
Pavlova-9 [17]

Answer:

Because it wouldn't make any sense

Explanation:

First of all, I think it's important to highlight the definition of isotope.

Isotope (Wikipedia): Variants of a particular chemical element <u>which differ in neutron number</u>...

This means that two isotopes are the same element but have different net mass per atom, due to the different number of neutrons.

Therefore, it's important to make the definition on the same isotope so that the proportion is equal. If the definition would be made on different isotopes, the proportion wouldn't have any sense. Let me be clear with this example:

mass in grams of a C-12 atom = 1.9944235 × 10 ^ -23 g  --> this is the mass of a single C atom.

By definition --> 1 mol of anything = 6.02 x 10 ^ 23 particles of anything

Therefore, we know how much a single C atom weights. How many grams do you think that 6.02 x 10 ^ 23 atoms of C (i.e a mol of C) could weight??

1 single C atom ----------------------------- 1.9944235 × 10 ^ -23 g

6.02 x 10 ^ 23 atoms of C   ------------ <u>12.006 g  !!</u>

These 12 g is the same quantity than above! Therefore, 1 mol of C weights 12 g. If the definition were made with 13 g of C-13 (the other C isotope), these numbers will not be the same --> There would be a contradiction.

Regarding the second question, we need to search Ne-20 atomic mass in grams -->  3,3509177 × 10 ^ -23 g

Hence, if we follow the same rule, the amu would be 1/12 of Ne-20.

[ 3,3509177 × 10 ^ -23 g ] / 12 = 2.79 ^ -24 g

3 0
3 years ago
Is o-toluic acid soluble in ether, NaOH?, Is Napthalene soluble in NaOH?
natima [27]
Yes, o-toluic acid is soluble in ether as ether is slightly polar and it is soluble in NaOH because it is likely to form soluble compounds with it.

Naphthalene is insoluble in NaOH.
8 0
3 years ago
Which acid-base buffer is most crucial to maintaining homeostasis within the human body?
Igoryamba

it is a i believe: Bicarbonate and carbonic acid (A)

3 0
3 years ago
Read 2 more answers
Which three of the five items would be best to include in a safety contract?
ValentinkaMS [17]
Student Safety Contract - Flinn Scientific
ties which require the use of hazardous chemicals. Safety in ... vided to you in this student safety contract. ... 3. Never work alone. No student may work in the laboratory without an instructor ... Look for things such as.
Missing: five ‎| Must include: five
7 0
3 years ago
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What are the reactants in the following equation: hcl(aq) nahco₃(aq)→ co₂(g) h₂o(l) nacl(aq)
Triss [41]
The reactants are all the formulas to the left of the arrow, which are:
hcI(aq) nahco3(aq)
4 0
3 years ago
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