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2 years ago

HELP HELP HELP PLEASE ;-;

Chemistry

1 answer:

qaws [65]2 years ago

7 0

Answer:

with what you didnt put a question, math equation or a attachment

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How many moles of KCIO3 are required to produce 58.3 grams of 02? 2 KCIO3 —> 2 KCI + 3 O2

strojnjashka [21]

Answer:

1.21 mol KClO₃

General Formulas and Concepts:

Atomic Structure

Reading a Periodic Table
Moles
Mole Ratio

Stoichiometry

Analyzing reactions rxn
Using Dimensional Analysis

Explanation:

Step 1: Define

Identify variables

[rxn] 2KClO₃ → 2KCl + 3O₂

[Given] 58.3 g O₂

[Solve] mol KClO₃

Step 2: Identify Conversions

[rxn] 2 mol KClO₃ → 3 mol O₂

[PT] Molar Mass of O: 16.00 g/mol

Molar Mass of O₂: 2(16.00) = 32.00 g/mol

Step 3: Convert

[DA] Set up: $\displaystyle 58.3 \ g \ O_2(\frac{1 \ mol \ O_2}{32.00 \ g \ O_2})(\frac{2 \ mol \ KClO_3}{3 \ mol \ O_2})$
[DA] Divide/Multiply [Cancel out units]: $\displaystyle 1.21458 \ mol \ KClO_3$

Step 4: Check

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

1.21458 mol KClO₃ ≈ 1.21 mol KClO₃

6 0

2 years ago

Many different processes, both natural and human-caused, can release carbon dioxide into the atmosphere. Which of the following

inn [45]

Answer:

carbon dioxide is added to the atmosphere naturally when organisms respire or decompose,

Explanation:

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2 years ago

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The osmotic pressure of a solution increases as

s344n2d4d5 [400]

The osmotic pressure of a solution is a colligative property, which means that it depends on the number of particles of solute in the solution.

Formula: Osmotic pressure = MRT, where M is the molarity of the solution, R is the universal constant of ideal gases and T is the absolute temperature of the solution.

So, the answer is the option .: the osmotic pressure of a solution increases as the number of particles of solute in the solution increases.

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2 years ago

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For each pair, predict which molecule has the greater molar entropy under the same conditions (assume gaseous species).c o 2, ca

larisa [96]

I used to know this. I don't really remember but is used to know it. Im in 6th grade now

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3 years ago

Urgent !!!!

saul85 [17]

Answer:its y

Explanation:its going down with the most force, the end of the hill is the fastest if that makes sense