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3 years ago

Use the following equation to answer the questions below.

Chemistry

1 answer:

notsponge [240]3 years ago

7 0

Answer:

202

Explanation:

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On your first day working in a laboratory, you are told to make up 1 Liter of a 0.5 Molar Tris solution with a pH of 7.4. You me

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Answer:

60.57g of TRIS did you use

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<em />

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4 years ago

2Na + Cl2 → 2NaCl

antoniya [11.8K]

<h3>Answer:</h3>

$\displaystyle 0.75 \ mol \ Cl_2$

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

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Stoichiometry</u>

Reading a Periodic Table
Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN] 2Na + Cl₂ → 2NaCl

[Given] 34.485 g Na

<u>Step 2: Identify Conversions</u>

[RxN] 2 mol Na = 1 mol Cl₂

Molar Mass of Na - 22.99 g/mol

<u>Step 3: Stoichiometry</u>

Set up: $\displaystyle 34.485 \ g \ Na(\frac{1 \ mol \ Na}{22.99 \ g \ Na})(\frac{1 \ mol \ Cl_2}{2 \ mol \ Na})$
Multiply/Divide: $\displaystyle 0.75 \ mol \ Cl_2$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 5 sig figs.</em>

Since our final answer has 2 sig figs, there is no need to round.

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3 years ago