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Dahasolnce [82]
3 years ago
9

· A 0.100g sample of Mg when combined with O2 yields 0.166g of Mgo, a

Chemistry
1 answer:
ddd [48]3 years ago
6 0

Answer:

m_{MgO}=0.239gMgO

Explanation:

Hello,

In this case, the chemical reaction between magnesium and oxygen to yield magnesium oxide is:

2Mg+O_2\rightarrow 2MgO

In such a way, for 0.144 g of magnesium reacting with sufficient oxygen, the mass of magnesium oxide, whose molar mass is 40.3 g/mol (2:2 mole ratio) turns out:

m_{MgO}=0.144gMg*\frac{1molMg}{24.3gMg} *\frac{2molMgO}{2molMg}* \frac{40.3gMgO}{1molMgO} \\\\m_{MgO}=0.239gMgO

Best regards.

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Molecular chlorine and molecular fluorine combine to form a gaseous product. Under the same conditions of temperature and pressu
uranmaximum [27]

Answer:

  • Cl F₃

Explanation:

<u>1) Reactants:</u>

The reactants are:

  • <em>Molecular chlorine</em>: this is a gas diatomic molecule, i.e. Cl₂ (g)

  • <em>Molecular fluorine</em>: this is also a gas diatomic molecule: F₂ (g)

<u>2) Stoichiometric coefficients:</u>

  • <em>One volume of Cl₂ react with three volumes of F₂</em> means that the reaction is represented with coefficients 1 for Cl₂ and 3 for F₂. So, the reactant side of the chemical equation is:

        Cl₂ (g) + 3F₂ (g) →

<u>3) Product:</u>

  • It is said that the reaction yields <em>two volumes of a gaseous product;</em> then, a mass balance indicates that the two volumes must contain 2 parts of Cl and 6 parts of F. So, one volume must contain 1 part of Cl and 3 parts of F. That is easy to see in the complete chemical equation:

       Cl₂ (g) + 3F₂ (g) → 2Cl F₃ (g)

        As you see, that last equation si balanced: 2 atoms of Cl and 6 atoms of F on each side, and you conclude that the formula of the product is ClF₃.

8 0
3 years ago
Hey can anyone pls answer dis in ur own wordssss
yaroslaw [1]

Answer: sorry

Explanation:

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4 0
2 years ago
Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming of natural
ikadub [295]

Answer: N_2(g)+3H_2(g)+4O_2(g)\rightarrow 2HNO_3(g)+2H_2O(g)

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical reaction for nitrogen and hydrogen react to form ammonia:

N_2(g)+3H_2(g)\rightarrow 2NH_3(g)     (1)

The balanced chemical reaction for ammonia and oxygen react to form nitric acid and water:

NH_3(g)+2O_2(g)\rightarrow HNO_3(g)+H_2O(g) \times 2

2NH_3(g)+4O_2(g)\rightarrow 2HNO_3(g)+2H_2O(g)    (2)

The net chemical equation for the production of nitric acid from nitrogen, hydrogen and oxygen by adding 1 and 2

N_2(g)+3H_2(g)+4O_2(g)\rightarrow 2HNO_3(g)+2H_2O(g)

5 0
3 years ago
The prefix 'mili-' means a thousandth. So a mili-liter is a thousandth of a liter. 1 mili-liter = 1/1000 liter How many liters i
Vesnalui [34]

it would be 0.623 hope this helps
3 0
4 years ago
Water contains 7.0 mg/L of soluble ion (Fe2 ) that is to be oxidized by aeration to a concentration of 0.25 mg/L. The pH of the
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Answer:

For CMFR:

V = 5286 m³

t = 2.6 hr

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V = 529 m³

t = 19 minutes

Explanation:

Find attached for the calculation.

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