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4 years ago

The rate of the reaction is ?

2 answers:

4 0

The rate of a chemical reaction is defined as the change in the concentration of a reactant or a product over the change in time, and concentration is in moles per liter, or molar, and time is in seconds. So we express the rate of a chemical reaction in molar per second.

IRISSAK [1]4 years ago

3 0

Answer:

Hey!

Your answer is The Rate of a Reaction is a measurement of how the speed at which a reactant is used up / or a product is formed.

Explanation:

R of R (Rate of Reaction) can be affected by:

Reactant concentration (how much of the substance is there to react)

The state of the reactants (whether they are in a solid/liquid/gas state)

The total surface area (more particles of the substance means more reactions...)

The Temperature (hot=quicker cool=slower)

The presence of a catalyst (catalysts speed up the Rate of the Reaction)

HOPE THIS HELPS!!

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How does density differ from concentration?

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15. What volume of CCI, (d = 1.6 g/cc) contain

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Answer:

$\boxed{\text{(3) 9.6 L}}$

Explanation:

1. Moles of CCl₄

$n = 6.02 \times 10^{25} \text{ molecules} \times \dfrac{\text{1 mol}}{6.022 \times 10^{23}\text{ molecules}} = \text{100.0 mol}$

2. Molar mass of CCl₄

MM = 1 × 12.01 + 4 × 35.5 = 12.01 + 142 = 154.0 g/mol

3. Mass of CCl₄

$m =\text{100.0 mol} \times \dfrac{\text{154.0 g}}{\text{1 mol}} = \text{15 400 g}$

4. Volume of CCl₄

$V = \text{15 400 g} \times \dfrac{\text{1 cm}^{3}}{\text{1.6 g}} = \text{9600 cm}^{3}\\\\V = \text{9600 cm}^{3} \times \dfrac{\text{1 L}}{\text{1000 cm}^{3}} = \mathbf{{9.6 L}}\\\\\text{The volume of CCl$_{4}$ is } \boxed{\textbf{9.6 L}}$

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3 years ago

PLEASE HELP, EASY QUESTION!!!! Which of the following best describes the freezing of water?

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