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Gwar [14]
3 years ago
12

Calculate the mass in grams of CO2 are formed if

Chemistry
1 answer:
Igoryamba3 years ago
8 0

Answer:

Mass = 176 g

Explanation:

Given data:

Volume of CH₄ = 89.6 L

Mass of CO₂ formed = ?

Solution:

Chemical equation:

CH₄ + 2O₂    →       CO₂ + 2H₂O

one mole of any gas at STP occupy 22.4 L volume.

number of moles of CH₄  that occupy 89.6 L = 89.6/22.4 = 4 mol

Now we will compare the moles of CH₄ and CO₂:

                CH₄            :          CO₂

                  1               :            1

                  4              :             4

Mass of CO₂:

Mass = number of moles × molar mass

Mass = 4 mol × 44 g/mol

Mass = 176 g

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Viktor [21]

Answer:

C). 373 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit

Explanation:

Kelvin and Celsius are related using the equation K = C + 273.

Celsius and Fahrenheit are related using the equation F = (9/5) * C + 32.

This means that Kelvin and Celsius have to differ by 273, in which only B and C fit that description.

Then you can look at the Celsius and Fahrenheit readings from B and C and apply the equation F = (9/5) * C + 32. For B, you take 0 degrees Celsius and substitute it in for C to get F = (9/5) * 0 + 32, in which you get 32 degrees Fahrenheit and <em>not </em>the 212 degrees in answer B. For C, you do the same: F = (9/5) * 100 degrees Celsius + 32 = 212 degrees Fahrenheit, which does agree with the answer. Therefore, it must only be C.

3 0
3 years ago
If an isotope decays by the process of beta emission, ___.
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4 years ago
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Use the ideal gas law to calculate the pressure in atmospheres of 0.21 mol of helium (He) at 16°C &amp; occupying 2.53 L. You mu
chubhunter [2.5K]

Answer:

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Explanation:

Data

P = ?

n = 0.214

V = 2.53 L

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R = 0.082 atm L/mol°K

Formula

PV = nTR

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Process

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°K = °C + 273

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2.- Substitution

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3.- Simplification

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4.- Result

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