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yanalaym [24]
4 years ago
7

When an arrhenius base is placed in h20 the only negative ion present in the solution is?

Chemistry
1 answer:
melamori03 [73]4 years ago
5 0
According to Arrhenius theory of acid and base, Acids are those substances which when dissolved in water produces protons, while, Bases are those substances which when dissolved in water produces Hydroxyl Ions.

Example of Arrhenius Bases:

                         
NaOH ₍s₎ → Na⁺ ₍aq₎  +  ⁻OH ₍aq₎

                         LiOH ₍s₎ → Li⁺ ₍aq₎  +   ⁻OH ₍aq₎
Result:
           The only negative ion produced in water when Arrhenius Base is dissolved is ⁻OH (Hydroxyl Ion).
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How many grams are in 2.3 x 10^ -4 moles of calcium phosphate? ​
Yanka [14]

Answer:

Mass = 713.4 ×10⁻⁴ g

Explanation:

Given data:

Number of moles of calcium phosphate = 2.3×10⁻⁴ mol

Mass of calcium phosphate = ?

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of calcium phosphate is 310.18 g/mol

by putting values,

2.3×10⁻⁴ mol = mass / 310.18 g/mol

Mass = 2.3×10⁻⁴ mol × 310.18 g/mol

Mass = 713.4 ×10⁻⁴ g

3 0
3 years ago
Ammonium phosphate NH43PO4 is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid H3PO4 with
mestny [16]

Answer:

The weight of ammonium phosphate is 10 gm

Explanation:

The chemical reaction of ammonium phosphate formation is as follows.

3NH_{3}+H_{3}PO_{4} \rightarrow [(NH_{4})_{3}PO_{4}]

From the reaction one mole of phosphoric acid is equivalent to the one mole of ammonium phosphate.

So, "n" mole of phosphoric acid is equivalent to the "n" mole of ammonium phosphate.

Number of moles in 7.1 grams of phosphoric acid = \frac{7.1}{Molarmass\,of phosphoric\,acid}

\frac{7.1}{98}= \frac{1}{13.8}

<u>Formation weight of ammonium phosphate :</u>

Weight of ammonium phosphate = = \frac{1}{13.8}\times Molarmass\,of\,\,ammonium\,phosphate

=\frac{149}{13.8} = 10.79gm

Round the answer to 2 significant digits

Weight of ammonium phosphate = 10 gm

7 0
3 years ago
What is the empirical formula for butane, C4H10
pochemuha
C2H5 i think by ÷2 on both
4 0
3 years ago
Need some help anyoneee like bad bad
crimeas [40]

Answer:

D. CF₄

Explanation:

The compound with this molecular geometry is Carbon tetrafluoride (CF₄)

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Option D is the correct answer.

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3 years ago
Why is space cold ???
Norma-Jean [14]

Because the space is ultimate thermos.

4 0
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