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3 years ago

What is the mass of 1 mole of Pb?

Chemistry

2 answers:

Volgvan3 years ago

8 0

Answer:

207.2 g

Explanation:

The mass of 1 mole of lead is given by its molar mass, which is 207.2 g/mol. This is an average molar mass, corresponding to the weighted average of the 4 lead isotopes, ²⁰⁴Pb, ²⁰⁶Pb, ²⁰⁷Pb, ²⁰⁸Pb, considering their abundance in nature. The mass of 1 mole of Pb is:

1 mol × (207.2 g/mol) = 207.2 g

s2008m [1.1K]3 years ago

3 0

How many moles Pb in 1 grams? The answer is 0.0048262548262548. We assume you are converting between moles Pb and gram. 1 mole is equal to 1 moles Pb, or 207.2 grams.

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A canister has a fixed volume. If the pressure of the cannister is 1.5 atm at 25 Celsius, what is the new pressure if the temper

scoray [572]

Answer:

d) 1.8 atm

Explanation:

According to Boyle's Law,

P₁/T₁ = P₂/T₂

Here, we are given :

P₁ = 1.5 atm
T₁ = 25°C = 298 K
T₂ = 75°C = 348 K

Solving

P₂ = P₁T₂/T₁
P₂ = 1.5 x 348 / 298
P₂ = 522/298
P₂ = 1.8 atm (approximately)

3 0

2 years ago

What is the mass of 1.58 moles of CH4

HACTEHA [7]

<h3>Answer:</h3>

25.4 g CH₄

<h3>General Formulas and Concepts:</h3>

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Chemistry

Atomic Structure

Reading a Periodic Table

Stoichiometry

Using Dimensional Analysis

<h3>Explanation:</h3>

Step 1: Define

1.58 mol CH₄

Step 2: Identify Conversions

[PT] Molar Mass of C - 12.01 g/mol

[PT] Molar Mass of H - 1.01 g/mol

Molar Mass of CH₄ - 12.01 + 4(1.01) = 16.05 g/mol

Step 3: Convert

Set up: $\displaystyle 1.58 \ mol \ CH_4(\frac{16.05 \ g \ CH_4}{1 \ mol \ CH_4})$
Multiply/Divide: $\displaystyle 25.359 \ g \ CH_4$

Step 4: Check

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

25.359 g CH₄ ≈ 25.4 g CH₄

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3 years ago

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3 years ago

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Gnesinka [82]

Answer:

Explanation:

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Diagram how a solids molecular structure is different from a liquids molecular structure

ratelena [41]

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