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2 years ago

Calculate the number of moles of kool aid powder needed to make 100ml of a 0.1 m solution? 0.1M=x mol C12H22O11/0.1L

Chemistry

2 answers:

____ [38]2 years ago

7 0

(0.100 L) x (0.1 mol/L) = 0.0100 mol

dolphi86 [110]2 years ago

3 0

Answer : 0.01 moles

Explanation: Molarity is defined as no of moles of solute dissolved per liter of the solution.

$\text{molarity}=\frac{\text{no of moles of solute}}{\text{volume of solution in litres}}$

$\text{no of moles of solute}={\text{molarity}\times {\text{volume of solution in litres}}$

$\text{no of moles of solute} ={0.1m}\times {0.1L}$

$=0.01 moles$

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2 years ago

The nuclear equation is incomplete. Superscript 239 Subscript 94 Baseline P u + Superscript 1 Subscript 0 Baseline n yields Supe

Likurg_2 [28]

Answer:

The correct option is the first option

Explanation:

The equation described in the question is shown below

²³⁹₉₄Pu +¹₀n ⇒ ¹⁰⁰₄₀Zr + blank + 2¹₀n

This equation is a nuclear fission because it involves the splitting of a heavy nucleus, Plutonium (Pu), into smaller nuclei, Zirconium (Zr) and an unknown nuclei.

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The total mass number on the reactant side is 239 + 1 = 240

The total atomic number on the reactant side is 94 + 0 = 94

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To determine the missing atom, you subtract the the total atomic number of the product from that on the reactant side; 94 - 40 = 54

The atom with the atomic number 54 is Xenon,

To determine the mass number of the xenon isotope involved, you subtract the the total mass number of the product from that on the reactant side; 240 - 102 = 138.

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5 0

2 years ago

What is the 2s in 42,256

MissTica

42,256 = 2,000

42,256 = 200

together they'd be 2,200 (if that's what you needed as well)

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2 years ago

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2 years ago

how do i get the bond dissociation energy to break 7 C-H bond(s) in 1 mole of propane (CH₃CH₂CH₃) molecules is

stiv31 [10]

Answer:

$2877kJ/mol$

Explanation:

Hello.

In this case, since the bond energy per C-H bond is 411 kJ/mol and we of course avoid the C-C bond since we are asked to compute the energy to break 7 C-H bonds, the 411 kJ/mol are multiplied by 7 as shown below:

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Best regards.

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2 years ago