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Alinara [238K]
3 years ago
8

11. What is the concentration (in M) of an ammonia (NH3) solution if 12.23 grams of ammonia are

Chemistry
1 answer:
photoshop1234 [79]3 years ago
5 0

Answer:  1.284M NH3

Explanation:  (12.23 grams)/(17.0 gramms/mole) = 0.7191 moles

Dissolved in 560.0 ml (=0.5600L)

(0.7191 moles)/(0.560L) = 1.284M  (4 sig figs)

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Enumere por lo menos 5 objetos que antiguamente se hacían con otro material y en la actualidad se hacen con un polímero. Identif
Kay [80]

Translation: List at least 5 objects that were formerly made from another material and are now made from a polymer. Identify what polymer it is

Answer:

Five object now replaced with polymers

1) automobile body parts. (polypropylene, polyurethane and PVC)

2)TV cabinets. (polystyrene polymer)

3) composites for golf clubs. (carbon fibre reinforced polymer CFRP)

4) fibers for clothing and carpet. (acrylic and nylon)

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4 0
3 years ago
Protein structure characterized by the combination of different proteins that all together are required for protein function in
patriot [66]

Answer:

Quaternary structure

Explanation:

Hello!

A protein can be characterized by:

Primary structure: it is the linear sequence of amino acids.

Secondary structure: The amino acid sequence is folded by intermolecular interactions.

Tertiary structure: A greater folding of amino acids is observed by intermolecular interactions and disulfide bridges.

Quaternary structure: Two or more chains of folded amino acids join to form a new, more complex structure.

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5 0
3 years ago
A particle that orbits the nucleus in an atom is called a(n)
MrMuchimi

Answer:

The correct answer is electrons.

Explanation:

The electrons refer to the negatively charged constituents, which are arranged in the orbits around the nucleus of an atom. It determines all the chemical and physical characteristics of an atom except the radioactivity and mass.  It is a stable subatomic particle witnessed in all the atoms and functioning as the chief carrier of electricity in solids.

5 0
3 years ago
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what is the empirical formula of a compound if a sample contains 8.52g of carbon and 1.43 grams of hydrogen?
motikmotik

Answer:

Ultra ng 5

Palitan konang 6 Gems

Comment base❤

<h3> %Legit✔️</h3>
6 0
3 years ago
When a soda can is dropped, it should not be immediately opened. Why?
Kipish [7]
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7 0
3 years ago
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