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TEA [102]
3 years ago
14

A beaker containing 6.32 moles of PBr3, contains___

Chemistry
1 answer:
NISA [10]3 years ago
8 0

Answer:

3.8 x 10²⁴molecules

Explanation:

Given parameters:

Number of moles  = 6.32moles

Unknown:

Number of molecules  = ?

Solution:

The number of moles can be used to derive the number of molecules found within a substance.

Now,

       1 mole of substance contains 6.02 x 10²³ molecules

     6.32 mole of PBr₃ will contain 6.32 x 6.02 x 10²³ = 3.8 x 10²⁴molecules

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The study of movement, distribution and quality of water.

Explanation:

They measure the properties of bodied of water, such as the volume of and stream flow.

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susan goes on a walk for 10 minutes.she walks 22 meters from where she started.what speed did susan walk in meters per minute
eimsori [14]

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2.2 meters

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If oxygen with an electronegativity of 3.5 were to make a chemical bond with lithium, electronegativity of 1.0, what kind of bon
sergejj [24]

Answer:

Ionic.

Explanation:

Elements with higher electronegativity values are better at attracting electrons in a chemical bond.  

  • A chemical bond is considered "ionic" if the electronegativity difference between the two bonding atoms is greater than 1.8.
  • Otherwise, this chemical bond is considered "covalent".

In this example, the difference between the electronegativity of oxygen and lithium is 3.5 - 1.0 = 2.5. Since 2.5 > 1.8, the bond between the two elements would likely be ionic.

It is possible to reach the same conclusion based on the fact that lithium is a metal while oxygen is a nonmetal. When metal elements react with non-metal elements, the product is typically an ionic compound- with ionic bonds between the atoms.

6 0
2 years ago
Give the name and formula for the acid derived from each of the following anions: (a) perchlorate (b) N03- (c) bromite (d) H2PO4
Vlada [557]

Answer:

(a) Perchloric acid (HClO₄)

(b) Nitric acid (HNO₃)

(c) Bromous acid (HBrO₂)

(d) Phosphoric Acid (H₃PO₄)

Explanation:

Acids are the species which furnish hydrogen ions in the solution. The other specie produced with the hydrogen ion is called its conjugate base.

Thus,

(a) Perchlorate (ClO₄⁻) ion:

The acid that furnish perchlorate ion is <u>perchloric acid (HClO₄)</u>.

(b)  NO₃⁻ ion:

The acid that furnish NO₃⁻ ions is <u>Nitric acid (HNO₃)</u>.

(c) bromite (BrO₂⁻) ion:

The acid that furnish BrO₂⁻ ions is <u>Bromous acid (HBrO₂)</u>.

(d)  H₂PO₄⁻ ion:

The acid that furnish H₂PO₄⁻ ions is <u>Phosphoric Acid (H₃PO₄)</u>.

6 0
3 years ago
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