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3 years ago

Fill in the blank. The amount which an object accelerates

Chemistry

1 answer:

KATRIN_1 [288]3 years ago

6 0

I think the answer is force

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Find the number of formula units in 30 moles of h3po4

astra-53 [7]

There are 0.31 mol in h3po4

6 0

3 years ago

g Wine goes bad soon after opening because the ethanol in it reacts with oxygen gas from the air to form water and acetic acid ,

Trava [24]

Answer:

496 g

Explanation:

Let's consider the reaction between ethanol and oxygen to form acetic acid and water.

CH₃CH₂OH + O₂ → CH₃COOH + H₂O

The molar ratio of CH₃CH₂OH to CH₃COOH is 1:1. The moles of acetic acid produced by the reaction of 8.26 moles of ethanol are:

8.26 mol CH₃CH₂OH × (1 mol CH₃COOH/1 mol CH₃CH₂OH) = 8.26 mol CH₃COOH

The molar mass of acetic acid is 60.05 g/mol. The mass corresponding to 8.26 moles is:

8.26 mol × 60.05 g/mol = 496 g

3 0

4 years ago

Every Methane molecule looks different. True or false?

Akimi4 [234]

Answer:

False

Explanation:

Molecules of the same substance are made up of the same type of atoms and look exactly alike.

Hence, if I have two molecules of methane having exactly the same atoms of carbon and hydrogen,the both are indistinguishable from each other based on appearance.

Hence all molecules of methane are exactly alike if they are composed of atoms of the same isotope of hydrogen and carbon.

8 0

4 years ago

Which element forms an ionic bond when combined with Cl

Shtirlitz [24]

Potassium or any other metals.

3 0

4 years ago

1) How many atoms are in 0.54 moles of Cu? show work

mario62 [17]

<h3>Answer:</h3>

3.3 × 10²³ atoms Cu

<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> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

Moles
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[Given] 0.54 moles Cu

[Solve] atoms Cu

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

Avogadro's Number

<u>Step 3: Convert</u>

[DA] Set up: $\displaystyle 0.54 \ mol \ Cu(\frac{6.022 \cdot 10^{23} \ atoms \ Cu}{1 \ mol \ Cu})$
[DA] Multiply [Cancel out units]: $\displaystyle 3.25188 \cdot 10^{23} \ atoms \ Cu$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

3.25188 × 10²³ atoms Cu ≈ 3.3 × 10²³ atoms Cu

7 0

3 years ago