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4 years ago

19. Condensation is the change from - has a definite volume but no definite shape. - to -

Chemistry

1 answer:

Molodets [167]4 years ago

6 0

Answer:

the conversion of a vapor or gas to a liquid

Explanation:

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While performing the Acid-catalyzed Hydrolysis of Epoxides experiment you used a solution containing 1.84 mL of cyclohexene oxid

Elenna [48]

Answer:

The moles of starting material is $1.8212 \times 10^{-2}$ mole

Explanation:

Given:

Cyclohexene oxide material is used

Density = 0.97 $\frac{g}{mL}$

Volume = 1.84 mL

Formula of Cyclohexene oxide = $C_{6} H_{10} O$

Molar mass is given by,

$C = 6 \times 12 = 72$

$H = 10 \times 1 = 10$

$O = 1 \times 16 = 16$

⇒ $m' = 96\frac{g}{mol}$

Mass $m = 0.97 \times 1.84 = 1.7848$ $g$

Moles is given by,

$n = \frac{m}{m'}$

$n = \frac{1.7848}{98}$

$n = 1.8212 \times 10^{-2}$ mol

Therefore, the moles of starting material is $1.8212 \times 10^{-2}$ mole

3 0

3 years ago

A sample of potassium nitrate (49.0 g) is dissolved in 101 g of water at 100 °C, with precautions taken to avoid evaporation of

kvasek [131]

Answer:

Saturated solution

Explanation:

Saturated solution is the solution in which no more solute can be dissolved at a particular temperature.

A amount of the solute, potassium nitrate is dissolved at elevated temperature and on cooling, it precipitates. It means that the solution is saturated at that temperature. <u>Precipitation of the solute at lower temperature indicates that the solution is saturated solution.</u>

8 0

4 years ago

True or False. Index Fossils are formed from organisms that were alive for short period of geologic time, are extinct, had hard

NemiM [27]

Answer:

Index fossil, any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment.

Explanation:

True

6 0

3 years ago

Read 2 more answers

How many phosphate bonds are responsible for the high energy content of ATP?

Nataly_w [17]

The answer is a. one. There are three phosphate bonds in the ATP but only the first bond is responsible for the high energy. When this bond break, ATP will change to ADP.

4 0

3 years ago

Read 2 more answers

Question 21

Mumz [18]

There are 2 moles of O stones present in 88 grams of CO2. Why? Well, we can find the amount of moles present in 88 grams of CO2 by dividing the mass by the molar mass. The mass of CO2 comes out to be 88 grams. The molar mass of CO2 comes out to be 44 grams. Because 88 is the mass of CO2 and 44 is the molar mass of CO2, we can divide 88 by 44 to identify that there are 2.0 moles of O atoms present in 88 grams of CO2.

Your final answer: There are 2.0 moles of O atoms present in 88 grams of CO2. Your final answer to this question is D, or 2.0 moles. If you need to better understand, let me know and I will gladly assist you.

5 0

2 years ago