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zubka84 [21]
2 years ago
13

La masa molecular de la cafeina es de 194,19g ¿cual es la formula molecular de la cafeina ?

Chemistry
1 answer:
Zina [86]2 years ago
4 0

Answer:

the formula for the molecular caffeine is C8H10N4O2

Explanation:

percent to mass, mass to mole, divide by small multiply till whole

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Why can liquids change shape but solids cannot
Cerrena [4.2K]

Answer:

Explanation:

the forces between the molecules are stronger in solid than in liquids

5 0
3 years ago
What element has 28 electrons when electrically neutral
muminat

Answer:

nickel

It also tells you the number of electrons that the element has in its outside shells. If the atomic number of nickel is 28 then every atom of nickel has 28 protons in its nucleus and 28 electrons outside the nucleus.

Explanation:

5 0
3 years ago
What do the subscripts mean in a molecular formula ?​
horsena [70]

Answer:

A molecular formula tells us what atoms and how many of each type of atom are present in a molecule.

Explanation:

If only one atom of a specific type is present, no subscript is used.

For atoms that have two or more present, a subscript is written after the symbol for that atom.

Molecular formulas do not indicate how the atoms are arranged in the molecule.

- Hope this helps! -blazetoxic123

3 0
3 years ago
Read 2 more answers
What mass of compound must be weighed out to have a 0.0223 mol sample of H2C2O4 (M=90.04 g/mol)?
rodikova [14]
Mass of  H2C2O4 :

mm = 90.04 g/mol

number of moles : 0.0223 moles

m = n * mm

m = 0.0223 * 90.04

m = 2.007 g 

hope this helps!.

5 0
3 years ago
In cellular chemical pathways, the product(s) of any particular reaction are often quickly consumed by the next reaction in the
mezya [45]

Answer:

Tend to keep the product concetration <u>low</u> and therefore drive the reaction <u>righward</u>

Explanation:

The fact the products of a reaction are quickly consumed by the next one would tend to keep the product concetration low and therefore drive the reaction righward (to the products).

This happens because the system will not achive equilibrium between the reactants and the product, and will keep producing it util the system achives equilibrium or the reactants dry out.

5 0
3 years ago
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