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vladimir2022 [97]
3 years ago
9

QUICK!! WILL MARK BRAINLIEST!! what is the volume of 2.7 moles of co2 ?

Chemistry
1 answer:
Kay [80]3 years ago
3 0

Answer:

60. L CO₂

Explanation:

Step 1: Define

STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm

Step 2: Use Dimensional Analysis (Assuming we are dealing with STP)

2.7 \hspace{3} mol \hspace{3} CO_2(\frac{22.4 \hspace{3} L \hspace{3} CO_2}{1 \hspace{3} mol \hspace{3} CO_2} ) = 60.48 L CO₂

Step 3: Simplify

We are given 2 sig figs.

60.48 L CO₂ ≈ 60. L CO₂

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3 years ago
Is the law of conservative mass observed in this equation CaCO3 + 2HCI -->CaCI2 +H2O + CO2
pychu [463]

Answer:

The law is observed in the given equation.

Explanation:

CaCO₃ + 2HCI → CaCI₂ +H₂O + CO₂

In order to find out if the law of conservative mass is followed, we need to <u>count how many atoms of each element are there in both sides of the equation</u>:

  • Ca ⇒ 1 on the left, 1 on the right.
  • C ⇒ 1 on the left, 1 on the right.
  • O ⇒ 3 on the left, 3 on the right.
  • H ⇒ 2 on the left, 2 on the right.
  • Cl ⇒ 2 on the left, 2 on the right.

As the numbers for all elements involved are the same, the law is observed in the given equation.

8 0
3 years ago
Potassium chlorate (used in fireworks, flares, and safety matches) forms oxygen and potassium chloride when heated. KClO3(s) → K
Zina [86]

Answer:

10.3 g of oxygen are formed when 26.4 g of potassium chlorate is heated

Explanation:

This is the balanced equation:

2KClO₃(s) → 2KCl(s) + 3O₂(g)

Ratio beteween the salt and oxygen is 2:3

Molar mass of KClO₃ = 122.55 g/m

Let's find out the moles of salt

Mass / Molar mass

26.4 g /122.55 g/m = 0.215 moles

So, this is the final rule of three:

If 2 moles of KClO₃ make 3 moles of oxygen

0.215 moles of KClO₃ make  (0.215  .3) /2 = 0.323 moles of O₂ are produced

Molar mass O₂ = 32 g/m

Moles . molar mass = mass

0.323 m  . 32g/m = 10.3 g

4 0
3 years ago
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