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andre [41]
3 years ago
14

Using the equation MgCl2 -> Mg + Cl2, if 5.00 grams of MgCl2 is given, how many grams of Mg is produced?

Chemistry
1 answer:
motikmotik3 years ago
4 0

Answer:

MgCl2-> Mg+Cl

mass 5.00g Mass=1.263g

RFM Mg=24+35.5 ×2= 95 RFM= 24

moles= 5.00÷ 95= 0.0526 Moles=0.0526

Explanation:

mas of Mg= 1.263 grams

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What will be the volume of a balloon at 98 kPa if its volume is 9.65 L at 235 kPa?
OlgaM077 [116]
<span>Boyle's Law or Boyle-Mariotte's Law: Under constant temperature, the volume occupied by a given fixed mass of a gas is inversely proportional to its pressure.

Formula:
</span>\frac{ P_{1} }{ P_{2} } = \frac{ V_{2} }{ V_{1} }
Product of extremes equals product of means
P_{1} * V_{1} = P_{2} * V_{2}

Data:
P_{1} = 235\:kPa
V_{1} = 9.65\:L
P_{2} = 98\:kPa
V_{2} = ?

Solving:
P_{1} * V_{1} = P_{2} * V_{2}
235*9.65 = 98*V_{2}
2267.75 = 98V_{2}
98V_{2} = 2267.75
V_{2} =  \frac{2267.75}{235}
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4 0
3 years ago
Similarities and differences between covalent bonds and molecular interactions
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3 0
3 years ago
Actual Value = -273 Experimental Value = -274 calculate the percent error of your value for absolute zero (in Celsius) Percent e
monitta

Answer:

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Explanation:

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4 0
3 years ago
25 g of NH, is mixed with 4 moles of O, in the given reaction:
FromTheMoon [43]

Answer:

a. NH3 is limiting reactant.

b. 44g of NO

c. 40g of H2O

Explanation:

Based on the reaction:

4NH₃(g) + 5O₂(g) → 4NO(g) + 6H₂O(l)

4 moles of ammonia reacts with 5 moles of oxygen to produces 4 moles of NO and 6 moles of water.

To find limiting reactant we need to find the moles of each reactant and using the balanced equation find which reactant will be ended first. Then, with limiting reactant we can find the moles of each reactant and its mass:

<em>a. </em><em>Moles NH3 -Molar mass. 17.031g/mol-</em>

25g NH3*(1mol/17.031g) = 1.47moles NH3

Moles O2 = 4 moles

For a complete reaction of 4 moles of O2 are required:

4mol O2 * (4mol NH3 / 5mol O2) = 3.2 moles of NH3.

As there are just 1.47 moles, NH3 is limiting reactant

b. Moles NO:

1.47moles NH3 * (4mol NO/4mol NH3) = 1.47mol NO

Mass NO -Molar mass: 30.01g/mol-

1.47mol NO * (30.01g/mol) = 44g of NO

c. Moles H2O:

1.47moles NH3 * (6mol H2O/4mol NH3) = 2.205mol H2O

Mass H2O -Molar mass: 18.01g/mol-

2.205mol H2O * (18.01g/mol) = 40g of H2O

3 0
3 years ago
Read 2 more answers
How does electronegativity affect the polarity of the bond between two atoms?
Fantom [35]
It can allow the molecule (like water) to be polar because it has a negative and positive side to it (oxygen holds the negatives tight causing the hydrogens to be positive).
7 0
3 years ago
Read 2 more answers
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