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2 years ago

HELP!!!!!!!!!!

Chemistry

1 answer:

jekas [21]2 years ago

4 0

The answer is D.) 4.72g

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Riddle: What has to be broken before you can use it?

pickupchik [31]

Answer:

An egg will be your ans because it needs to be broken before we can cook it or use it for making other delicases

Explanation:

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4 0

1 year ago

PLEASE HELP! MAJOR TEST GRADE! :(

Goshia [24]

Answer:

Explanation:

7 0

3 years ago

Determine the theoretical maximum moles of ethyl acetate, , that could be produced in this experiment. The reactant, acetic acid

kherson [118]

Answer:

0.1832 moles of ethyl acetate ( $C_{4}H_{8}O_{2}$ )

Explanation:

1. Find the balanced chemical equation:

In the production of ethyl acetate, the acetic acid $CH_{3}COOH$ reacts with ethanol to produce ethyl acetate $C_{4}H_{8}O_{2}$ and water, that is:

$CH_{3}COOH+C_{2}H_{5}OH=C_{4}H_{8}O_{2}+H_{2}O$

2. Find the theoretical maximum moles of ethyl acetate $C_{4}H_{8}O_{2}$ :

As the problem says that the acetic acid $CH_{3}COOH$ is the limiting reagent, use stoichiometry to find the moles of ethyl acetate produced:

$11gCH_{3}COOH*\frac{1molCH_{3}COOH}{60.05gCH_{3}COOH}*\frac{1molC_{4}H_{8}O_{2}}{1molCH_{3}COOH}=0.1832molesC_{4}H_{8}O_{2}$

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3 years ago

The element in Period 4 and Group 14 of the Periodic Table would be classified as a

Paul [167]

Answer:

Chalcogen

Explanation:

7 0

3 years ago

A reaction between liquid reactants takes place at - 11.0 degree C in a sealed, evacuated vessel with a measured volume of 45.0

Sati [7]

Explanation:

The given data is as follows.

T = $11^{o}C$ = (11 + 273) K = 284 K, V = 45.0 L

m = 35 g

As molar mass of chlorine pentafluoride is 130.445 g/mol. Hence, number of moles of chlorine pentafluoride are as follows.

No. of moles = $\frac{mass}{\text{molar mass}}$

= $\frac{35 g}{130.445 g/mol}$

= 0.268 mol

Now, using the ideal gas equation we will find the pressure as follows.

PV = nRT

$P \times 45.0 L = 0.268 mol \times 0.082 L atm/mol K \times 284 K$

P = 0.139 atm

Thus, we can conclude that pressure of chlorine pentafluoride gas in the given reaction vessel after the reaction is 0.139 atm.

4 0

3 years ago