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4 years ago

The number of unique open-chain structures corresponding to the molecular formula c3h5cl is:

Chemistry

1 answer:

rosijanka [135]4 years ago

6 0

The number of unique open-chain structures corresponding to the molecular formula C₃H₅Cl is two.

Step 1. Draw all possible connections of three carbon atoms.

The is only one possibility (See first image below).

Step 2. Put the Cl in all possible unique positions.

There are only two possibilities: on an end carbon or on the middle carbon (see second image below).

Thus, there are only two isomers of C₃H₅Cl.

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Iron is found in Earth's crust as several iron compounds. Calculate the mass in kilograms of the amount of each of the following

myrzilka [38]

2074.74 kg is the mass of siderite in which 1x10^3 kg of iron is present.

Explanation:

Mass of iron is given as 1x10^3 Kg

mass of iron in siderite FeCO3 can be known

number of moles in 1x10^3 Kg iron is calculated by the formula.

number of moles = $\frac{mass}{atomic mass of one mole}$

atomic weight of iron is 55.84

number of moles = $\frac{1000.1000}{55.84}$

n= 17908.309 moles of iron in 1000 kg

1 mole of FeCO3 has 1 mole of Fe

x moles of FeCO3 will have $\frac{x}{17908.309}$ moles

$\frac{1}{1}$ = $\frac{x}{17908.309}$

x = 17908.309 moles of FeCO3 is there.

so mass can be calculated as number of moles x molar mass of one mole of the substance. (molar mass of siderite is 115.854 grams/mole)

17908.309 x 115.854

= 2074749.230 grams of siderite

(the molar mass is converted to kg/mole as the mass of iron is given by kg.

0.1158 kg is the molar mass of siderite)

2074749.230 grams of siderite is converted to kilogram

2074.74 kg is the mass of siderite in which 1x10^3 kg of iron is present.

4 0

4 years ago

What is an organ? List five (5) examples of organs?

DENIUS [597]

Here are all of the organ systems with some examples of organs found in each system:
Integumentary (skin, hair, nails)
Skeletal (bones)
Muscular (smooth, cardiac, and skeletal muscles)
Circulatory (heart, arteries, veins)
Respiratory (lungs, diaphragm, larynx)
Digestive (stomach, intestines, liver)

8 0

3 years ago

Read 2 more answers

Describe a situation where scientific knowledge was gained through doing an experiment

mamaluj [8]

Scientific knowledge can be gained through experiment by doing a thorough experimental procedure that will enable to answer the objectives of the experiment that will lead to a scientific knowledge. Through experimentation you can know the behavior of a variable with respect to a certain variable. This can also answer some knowledge gap about certain topic

8 0

3 years ago

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Gaseous chlorine dioxide (ClO2) is used in bleaching flour and municipal water treatment in

trapecia [35]

Taking into account the ideal gas law, the pressure is 2.52 atm.

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas are related by a simple formula called the ideal gas law. This equation relates the three variables if the amount of substance, number of moles n, remains constant. The universal constant of ideal gases R has the same value for all gaseous substances. The numerical value of R will depend on the units in which the other properties are worked.

P×V = n×R×T

In this case, you know:

P=?
V= 500 L
n= 52.1 moles
R= 0.082 $\frac{atmL}{molK}$
T= 22 C= 295 K (being 0 C=273 K)

Replacing in the ideal gas law:

P×500 L = 52.1 moles ×0.082 $\frac{atmL}{molK}$ ×295 K

Solving:

P= (52.1 moles ×0.082 $\frac{atmL}{molK}$ ×295 K)÷ 500 L

P= 2.52 atm

Finally, the pressure is 2.52 atm.

Learn more about ideal gas law:

brainly.com/question/4147359?referrer=searchResults

5 0

3 years ago

A sample of calcium carbonate weighs 2.1 kilograms (kg). There are 1,000 grams (g) in 1 kg, and 1 Times. 109 nanograms (ng) in 1

TiliK225 [7]

Answer:

2.1 x 10¹²ng

Explanation:

Mass of the calcium carbonate given is:

2.1kg

We need to take this mass to nanogram, ng.

Since :

1000g = 1kg

10⁹g = 1ng

So;

1kg = 1000 x 10⁹ = 10¹²ng

So;

2.1kg will give;

Since

1kg gives 10¹²ng

2.1kg will give 2.1 x 10¹²ng

5 0

3 years ago