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3 years ago

Concentration is the amount of material dissolved in a measure of liquid? true or false

Chemistry

1 answer:

avanturin [10]3 years ago

6 0

Answer:

True

Explanation:

the relative amount of a given substance contained within a solution or in a particular volume of space; the amount of solute per unit volume of solution;.

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Vedmedyk [2.9K]

Explanation:

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3 years ago

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The volume of a gas is 450 mL when its pressure is 1.00 atm. If the temperature of the gas does not change, what is the pressure

svlad2 [7]

0.225 atm is the correct answer for this quetion

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3 years ago

What major product is formed when heptyne is treated with Br2 in CCl4?

ANTONII [103]

Answer:A 1,2-dibromoheptene

Explanation:

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Ibuprofen is a common pain reliever and anti-inflammatory. Its formula is C13H18O2. What percent by mass of ibuprofen is the car

Anarel [89]

Answer:

Explanation:

%Carbon = mass of carbon / mas of C13H18O2) X100%

= 13X12/ (13X12+18+2X16)X100%

= 156/206) X100%= 75.7%

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3 years ago

How many moles of iron is 6.022 x 10^22 atoms of iron? (Report answer as a number rounded to one place past the decimal.) *

yuradex [85]

<h3>Answer:</h3>

$\displaystyle 0.1 \ mol \ Fe$

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

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

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>

6.022 × 10²² atoms Fe (iron)

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

Avogadro's Number

<u>Step 3: Convert</u>

Set up: $\displaystyle 6.022 \cdot 10^{22} \ atoms \ Fe(\frac{1 \ mol \ Fe}{6.022 \cdot 10^{23} \ atoms \ Fe})$
Divide: $\displaystyle 0.1 \ mol \ Fe$

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3 years ago