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Juliette [100K]
2 years ago
6

How many moles are in 25.0 grams of HF?

Chemistry
2 answers:
sasho [114]2 years ago
7 0

Answer:

Hey mate.....

Explanation:

This is ur answer.....

<em>So, </em>

<em>I</em><em>f one mole has a mass of 18 grams, 25 grams would have a mass of 25 grams/ 18 grams per mole or 1.39 moles.</em>

Hope it helps!

mark me brainliest plz.....

Follow me! :)

Aloiza [94]2 years ago
4 0

Answer:

1.39 moles............

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Which of the following is an alkaline earth metal?
svetlana [45]
Magnesium is the answerr
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2 years ago
b) If 1.5 mole of oxygen reacted, how many mole of iron (III) oxide would be formed from the reaction?
lyudmila [28]

Answer:

If there reacted 1.5 moles of O2, there will be produced 1.0 mol of Fe2O3

Explanation:

Step 1: Data given

Number of moles oxygen reacted = 1.5 moles

Step 2: The balanced equation

4Fe + 3O2 → 2Fe2O3

Step 3: Calculate moles of Fe2O3

For 4 moles Fe consumed, we need 3 moles of O2 to produce 2 moles of Fe2O3

For 1.5 moles O2 consumed, we'll have 2/3 * 1.5 = 1.0 mol of Fe2O3

If there reacted 1.5 moles of O2, there will be produced 1.0 mol of Fe2O3

7 0
3 years ago
are either positively charged or negatively charged species in which the number of protons and electrons are not equal. ________
fredd [130]

Answer:

1. Ions are either negatively or positively charged species in which the number of electrons and protons are not equal.

2. The chemical bond that arises due to the sharing of electrons is termed a covalent bond.

3. The positively charged ions are called cations, which comprise more protons than electrons.

4. An example of a polyatomic anion is the hydroxide anion.

5. The system of assigning an unambiguous name to a compound is called nomenclature.

6 0
2 years ago
The lattice energy of a salt is related to the energy required to separate the ions. For which of the following pairs of ions is
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Explanation:

6 0
2 years ago
Write the concentrated sulphuric acid H2C2O42H2O=2H2O+CO2+CO
masha68 [24]

Answer:

H2C2O4.2H20 → CO2 + CO + H2O

Explanation:

Oxalic acid crystals are nothing but dehydrated oxalic acid (H2C2O4 . 2H2O).

On heating, the water of crystallization is lost first. Then, the dehydrated oxalic acid decomposes into carbon dioxide(CO2), carbon monoxide(CO) and water(H2O).

Equations involved :

H2C2O4 . 2H2O → H2C2O4 + 2H2O

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HCOOH → CO + H2O

Overall equation : H2C2O4.2H20 → CO2 + CO + H2O

4 0
3 years ago
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