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3 years ago

Magnesium +Hydrogen Phospahate

Chemistry

2 answers:

Aleks04 [339]3 years ago

8 0

Answer:

That makes Dimagnesium phosphate

Mekhanik [1.2K]3 years ago

6 0

Answer:

The reaction between Magnesium and Hydrogen Phosphate forms Magnesium Hydrogen Phosphate

Explanation:

When magnesium reacts with hydrogen phosphate it forms an ionic compound called Magnesium Hydrogen Phosphate or Dimagnesium Phosphate.

Magnesium Hydrogen Phosphate is an ionic compound with the formula HMgO4P.

Equation;

Mg + HPO4 ------> HMgO4P

Similarly we can use Magnesium Phosphate to demonstrate the reaction.

In chemistry, the sum of charges of the anion and the cation of any ionic compound is always equal to zero.

To determine the number of anion and cation required for the sum to be zero we simply use the criss-cross method. This involves taking the charge of one ion and making the absolute value of that charge to be the amount of the other ion.

Therefore, Magnesium having a charge of 2+; we will have two(2) Phosphate cations for it.

Also, Phosphate has a charge of 3-; so we have three(3) Magnesium cations.

Equation;

$Mg^{2+} + (PO4)^{3-} ----> Mg3(PO4)2$

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4 years ago

Calculate the pH in titration of a weak acid: What is the pH in titration of formic acid (HCHO2, 0.200 M, 100.0 mL) after the ad

ki77a [65]

Answer:

pH = 12.61

Explanation:

First of all, we determine, the milimoles of base:

0.120 M = mmoles / 300 mL

mmoles = 300 mL . 0120 M = 36 mmoles

Now, we determine the milimoles of acid:

0.200 M = mmoles / 100 mL

mmoles = 100 mL . 0.200M = 20 mmoles

This is the neutralization:

HCOOH + OH⁻ ⇄ HCOO⁻ + H₂O

20 mmol 36 mmol 20 mmol

16 mmol

We have an excess of OH⁻, the ones from the NaOH and the ones that formed the salt NaHCOO, because this salt has this hydrolisis:

NaHCOO → Na⁺ + HCOO⁻

HCOO⁻ + H₂O ⇄ HCOOH + OH⁻ Kb → Kw / Ka = 5.55×10⁻¹¹

These contribution of OH⁻ to the solution is insignificant because the Kb is very small

So: [OH⁻] = 16 mmol / 400 mL → 0.04 M

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3 years ago

The circumference of a circle is 6.28 millimeters. What is the circle's diameter?

dangina [55]

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Explanation:

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Gennadij [26K]

Answer:

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Kinetic energy

Explanation:

The mechanical energy is the sum of the kinetic and potential energy of the particles that make up the baseball.

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