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4 years ago

Find the moles of NaCl if 179.2L of CO2 at STP

Chemistry

1 answer:

777dan777 [17]4 years ago

5 0

16moles of NaCl

Explanation:

Given parameters:

Volume of NaCl = 19.21L

Unknown:

Number of moles of NaCl = ?

Solution:

To solve this problem, we should work from the known specie to the unknown one.

The known specie is the volume of CO₂ produce at STP;

Number of moles = $\frac{Volume at STP}{22.4L}$

Number of moles of CO₂ = $\frac{179.2}{22.4}$ = 8moles

From the balanced equation;

1 mole of CO₂ was produced along with 2 moles of NaCl

with 8 mole of CO₂ 8 x 2 mole of NaCl will be produced = 16moles of NaCl

learn more:

Gases at STP brainly.com/question/7795301

#learnwithBrainly

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lana66690 [7]

1. 5 electrons.

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8 0

3 years ago

20 points

Alik [6]

Answer:

The answer to your question is a balanced equation

Explanation:

Chemical formulas are extremely useful in chemistry and these formulas follow the law of proportions but not the law of conservation of matter.

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Subscripts are necessary for chemical reactions but they are not a feature of the law of conservation of matter.

4 0

3 years ago

Read 2 more answers

Drag each label to the correct location on the chart. Classify each reaction as endothermic or exothermic.

fomenos

A reaction is exothermic if ΔH (or $\Delta H _\text{rxn}$ in some textbooks) is negative:

H₂ + Br → 2 HBr, ΔH < 0.
CH₄ + 2 O₂ → CO₂ + 2 H₂O, ΔH < 0.

A reaction is endothermic if ΔH is positive:

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<h3>Explanation</h3>

The enthalpy of a system is the sum of its internal energy. ΔH < 0 indicates that the reactants lose internal energy in the reaction. Energy conserves, and those internal energies must have converted to some other form of energy. They typically end up as thermal energy. The reaction will release heat since it is exothermic.

Similarly, ΔH > 0 indicates that the reactants gains internal energy in the reaction. Energy conserves. As a result, the reaction must have gained energy from its surroundings. The reaction will be endothermic since it absorbs heat.

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3 years ago

What is my percent yield if I calculated that a reaction would yield 20.0 g of iron (II) chloride, but I only managed to get 4.0

sergiy2304 [10]

Answer:

Theoretical yield is 20%.

Explanation:

Percent yield = [(actual yield)/(theoretical yield)] $\times 100$ %

Theoretical yield is calculated amount of product by using stoichiometric ratio between reactant and product.

Actual yield is the amount of product which is experimentally obtained.

Here theoretical yield is 20.0 g and actual yield is 4.0 g.

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6 0

4 years ago

6.) Choose all of the following that are TRUE regarding the Ideal Gas Law.

Cerrena [4.2K]

Answer:

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Explanation:

What you have to know;

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3 years ago