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4 years ago

Why do doctors worry more about a fever of a couple of degrees Celsius than a fever of a couple of degrees Fahrenheit

Chemistry

2 answers:

weeeeeb [17]4 years ago

8 0

Because Celcius is a larger amount than Fahrenheit. The units are farther apart.

alisha [4.7K]4 years ago

3 0

Celcius is a smaller number than celcius but the same. pretty much, 100 degress farenheit equals to 37.7778 degrees celcius.

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When 21.5 g of CH4 gas reacts with 387.5 g O2 gas, how much CO2 is formed?

Doss [256]

Answer:

Mass = 58.96 g

Explanation:

Given data:

Mass of CH₄ = 21.5 g

Mass of O₂ = 387.5 g

Mass of CO₂ formed = ?

Solution:

Chemical equation:

CH₄ + 2O₂ → CO₂ + 2H₂O

Number of moles of CH₄:

Number of moles = mass / molar mass

Number of moles = 21.5 g/ 16 g/mol

Number of moles = 1.34 mol

Number of moles of O₂ :

Number of moles = mass / molar mass

Number of moles = 387.5 g/ 32 g/mol

Number of moles = 12.1 mol

now we will compare the moles of CO₂ with O₂ and CH₄.

O₂ : CO₂

2 : 1

12.1 : 1/2×12.1 = 6.05 mol

CH₄ : CO₂

1 : 1

1.34 : 1.34

Number of moles of CO₂ produced by CH₄ are less thus it will limiting reactant.

Mass of CO₂:

Mass = number of moles × molar mass

Mass = 1.34 mol × 44 g/mol

Mass = 58.96 g

8 0

3 years ago

The process by which molecules of water vapor in the air become liquid water answers

Musya8 [376]

I believe that is condensation

6 0

4 years ago

Which particles are equal in number for an atom with a neutral charge?

vodka [1.7K]

Electrons and protons

4 0

3 years ago

What is the volume of 40.0 grams of argon gas at STP ?

MrRa [10]

Answer:

24.9 L Ar

General Formulas and Concepts:

Atomic Structure

Reading a Periodic Table
Moles
STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 K

Aqueous Solutions

States of Matter

Stoichiometry

Using Dimensional Analysis

Explanation:

Step 1: Define

[Given] 40.0 g Ar

[Solve] L Ar

Step 2: Identify Conversions

[PT] Molar Mass of Ar - 39.95 g/mol

[STP] 22.4 L = 1 mol

Step 3: Convert

[DA] Set up: $\displaystyle 40.0 \ g \ Ar(\frac{1 \ mol \ Ar}{39.95 \ g \ Ar})(\frac{22.4 \ L \ Ar}{1 \ mol \ Ar})$
[DA] Divide/Multiply [Cancel out units]: $\displaystyle 24.9235 \ L \ Ar$

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

24.9235 L Ar ≈ 24.9 L Ar

5 0

3 years ago

What happens when sodium and potassium react with water?

alekssr [168]

They react and explode

5 0

3 years ago

Read 2 more answers