14.37 identify the characteristic signals that you would expect in the diagnostic region of an ir spectrum of each of the following compounds: (a) o (b) o (c) o (d) oh (e) oh o (f ) oh

Answer:

arctic glacier

Explanation:

Answer:

Explanation:

are there any choices to choose from?

if not a glacier is a type of frozen water compacted together...

if it   doesnt have choices ill word it differently...

can u also tell me what is your unit about?

ANSWER

The volume of the gas in liters is 2.016 Liters

STEP-BY-STEP EXPLANATION:

Given parameters

The mole of the given gas = 0.090 mole

Recall that, 22.4L is equivalent to 1 mole at S.T.P

Let x be the volume of the gas in Liters

Therefore, the volume of the gas in liters is 2.016 Liters

Calcium carbonate is the active ingredient in agricultural lime.

Calcium carbonate is the calcium salt with formula CCaO3. It has a role as an antacid, a food coloring, a food firming agent and a fertilizer and much more. It is a calcium salt, a carbonate salt, a one-carbon compound and an inorganic calcium salt.

Calcium carbonate is used therapeutically as a phosphate buffer.

488 moles of calcium carbonate (CaCO3) can be calculated by using its molecular weight. Calcium carbonate has a molecular weight of 100.0869 g/mol. To calculate the mass of 488 moles, we can multiply the molecular weight by the number of moles:

mass = molecular weight x number of moles

mass = 100.0869 g/mol x 488 mol

mass = 48,842.4072 g

So, the mass of 488 moles of calcium carbonate is approx. 48,842.4072 grams.

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In the case of a real gas when you're using Van Der Waals equation, the volume of a real gas is considered as (Vm - b), where b can be considered as the volume occupied by per mole.

Therefore, when the ideal gas law gets substituted with V = Vm  - b, it is given as : P(Vm  - b) = nRT

The presence of intermolecular attraction P was modified as follows.

\(\frac{P+a}{V^{2} } (Vm- b) = RT\\\frac{P+an^{2} }{V^{2} } (V - nb) = nRT\)

Where, Vm: molar volume of the gas

R: universal gas constant

T: temperature

P: pressure

V: volume

Thus, it is possible to reduce Van Der Waals equation to the ideal gas law as PVm = RT.

What is the significance of the Ideal gas Law?

The ideal gas law only functions as an approximation approach when high accuracy is not necessary because it describes the behaviour of ideal gasses, which there aren't any of. It is a solid introduction to the fundamental behaviour of gases and works well as a teaching tool, which is why it is taught to the majority of university students as part of any introduction to physics. In essence, the ideal gas law enables students to comprehend ideas such as the process of thermodynamic cycles, such as an engine, the reason an airbag expands, what transpires to a balloon at high altitude, and other related ideas.

Hence, Van Der Waals equation to the ideal gas law as PVm = RT.

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Answer:

8 electróns

Explanation:

because the Last protons

Grinding of glass sanding of wood are physical changes. Rusting of iron and burning candle are chemical changes.

Chemical changes involves the formation or breaking of chemical bonds that leads to a new product. Whereas, physical changes does not involves any change in chemical bonds. Phase change, change in size, shape etc. are physical changes.

Grinding glass will does not make any change in chemical bonds of glass materials . Just their size gets reduces and forms their dust particles. Thus, it is a physical change. Sanding the wood also a physical change.

Rusting of iron is the formation of red iron oxide by the reaction of iron with oxygen from air or water. This oxide will spread over the surface of the metal and eventually gets corroded. This is a chemical change where a new product is formed.

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Answer:

To be successful, a passive solar home design must include some basic elements that work together:

Properly oriented windows. ...

Thermal mass. ...

Distribution mechanisms. ...

Control strategies.

Explanation:

Answer:

Explanation:

All of above except carbon dioxide

The compound that is held together by ionic bonds are CaCl₂,  NaCl, sodium bromide, and FeBr₃. The correct options are A, C, D, and F.

Ionic bonds are electrovalent bonds. These bonds are formed when two or more atoms lose electrons or gain electrons to form an ion. Ions are opposite charges that attract each other. Ionic bonds are formed in both metals and non-metals.

CaCl₂, calcium chloride, is formed between metals and non-metals. Some more examples are NaOH – Sodium Hydroxide, NaHCO₃—Sodium Hydrogen Carbonate, etc.

An example is NaCl, is sodium has 11 atomic numbers. Chloride has 6 electrons in its outermost shell. They will share electrons with each other to make the noble gas configuration.

Thus, the correct options are A. CaCl₂, C. NaCl, D, sodium bromide, and F. FeBr₃.

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Answer:

50/36 = 25/18

Explanation:

Solution at attachment box

Molality = mole of dissolvable (this question glucose) / kg of water

Answer:

Molality = 1.38 mol/Kg

Explanation:

Given data:

Molality of solution = ?

Mass of C₆H₁₂O₆ = 150.0 g

Mass of water = 600.0 g (600 g ×1 kg/1000 g= 0.6 Kg)

Solution:

Number of moles of C₆H₁₂O₆:

Number of moles = mass/molar mass

Number of moles = 150.0 g/180.16 g/mol

Number of moles = 0.83 mol

Molality:

Molality = moles of solute / kg of solvent

Molality =  0.83 mol /0.6 Kg

Molality = 1.38 mol/Kg

A solution is a homogeneous mixture of one or more solutes in a solvent. The addition of sugar cubes to a cup of tea is an example of solution. The property which helps sugar molecules to dissolve is called solubility. Here Some compounds containing NO3- are soluble, but some are insoluble. The correct option is C.

The maximum amount of solute which can dissolve in particular amount of solvent at a certain temperature is known as its solubility. A solute is the substance which can be dissolved in a solvent.

Here reaction of  NaCl and Pb(NO₃)₂ and  AgNO₃ with NaCl also results in the formation of a precipitate.

Thus the correct option is C.

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Answer:

1. pH is 4.66.

2. pH is 3.44.

3. pOH is 11.54.

Explanation:

1. Determination of the pH.

Concentration of Hydrogen ion, [H+] = 2.17×10^-5M

pH =..?

pH = –Log [H+]

pH = –Log 2.17×10^-5

pH = 4.66

2. Determination of the pH.

pOH = 10.56

pH =..?

pH + pOH = 14

pH + 10.56 = 14

Collect like terms:

pH = 14 – 10.56

pH = 3.44

3. Determination of the pOH.

Concentration of Hydrogen ion, [H+] = 3.48×10^-3M

pOH =..?

First, we shall determine the pH of the solution. This is illustrated below:

pH = –Log [H+]

pH = –Log 3.48×10^-3

pH = 2.46

Now, we can determine the pOH of the solution. This is illustrated below:

pH = 2.46

pOH =..?

pH + pOH = 14

2.46 + pOH = 14

Collect like terms

pOH = 14 – 2.46

pOH = 11.54

The right response is C, which refers to a substance's melting or boiling point at a particular pressure. A phase diagram is a visual depiction of a substance's physical condition under various pressures and temperatures.

The melting or boiling point of a material at a certain pressure is represented by a specific point on the line of a phase diagram. This is so because the temperature at which a material transforms from one phase to another is known as the melting point or boiling point of that substance.

For instance, a material transforms from a solid to a liquid state when its temperature exceeds its melting point. Similar to this, when a substance's temperature hits its boiling point, it transforms from liquid to gaseous.

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Answer:

God

Explanation:

Answer:

Heritable traits are known to be passed from one generation to the next via DNA, a molecule that encodes genetic information. ... Organisms inherit genetic material from their parents in the form of homologous chromosomes, containing a unique combination of DNA sequences that code for genes.

Explanation:

3.20 g is the measurement of mass.

Mass is a measure of the amount of matter in an object, and is typically expressed in grams (g), kilograms (kg) or pounds (lb). Mass is an intrinsic property of an object, meaning it is independent of its environment.

Mass is measured using a balance or scale, which compares the mass of an object to a known standard. In the case of 3.20 g, this would be the mass of an object compared to the mass of a reference object, such as a kilogram.

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The minimum entropy change of the heat-supplying source is -0.87 kJ/K.

In this case, given the initial conditions, we first use the 10-% quality to compute the initial entropy.

S₁ = 1.485  +  (0.1)(5.6865) = 2.0537 kJ/kg K

The entropy at the final state given the new 40-% quality:

S₂ = 1.4337  +  (0.4)(5.7894) = 3.7495 kJ/kg K

m₁ = 0.026/(0.001057   +  0.1 x 1.002643) = 0.257 kg

m₂ = 0.026/(0.001053   +  0.4 x 1.158347)  = 0.056 kg

ΔS + S₁  - S₂  + S₂m₂  - S₁m₁  -  sfg(m₂  -  m₁)  > 0

ΔS + 2.0537 -  3.7495 + (3.7495 x 0.056)  -   (2.0537 x 0.257)  - 5.6865( 0.056 - 0.257)  >  0

ΔS > -0.87 kJ/K

Thus, the minimum entropy change of the heat-supplying source is -0.87 kJ/K.

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Answer:0

.63

Explanation:

One mole of H₂ reacts with one mole of Cl₂ to give 2 moles of hydrogen chloride gas. The volume of H₂ that will completely react with Cl₂ is 22.4 litres.

In the International System of Units, the mole is the unit of amount of a substance. It is specified that the mole contains exactly 6.022 * 10²³ elementary particles such as atoms, ions or molecules, similar to how a dozen denotes twelve.

At standard temperature and pressure (STP), one mole of any gas occupies a volume of 22.4 litres. From the given equation, the molar ratio of hydrogen and chlorine is 1:1. Since 22.4 litres of chlorine gas is used, then similarly, 22.4 litres of hydrogen gas must also be used up to give 2 moles of the product, hydrogen chloride gas.

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Answer:

If there are more products than reactants, that means the reaction has shifted towards the left, which is the backward direction. If there are more reactants than products, that means the reaction has shifted towards the right, which is the forward direction.

The molecules in a copper penny is closely packed and and has no space to move apart thus the material will be denser than that in the molten state. That's why the penny sink in the molten copper.

Copper is a transition metal exhibiting all the metallic properties. The molten state of metals is the fluid state where the molecule are not strongly held by the metallic bonds.

Molten material is made by melting them and the liquid like state contains molecules with some space to move apart. Whereas, in solid state as in a copper penny, the molecules are closely packed and have no space to move apart.

An object will sink in a liquid if it is less dense than the liquid. Copper penny is denser than the molten copper because the molecules are densely packed and it will sink on to it.

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Answer:

A. Metal mixture is impure

The relative molecular mass of hydrated Copper (II) tetraoxosulphate (VI) CuSO4.5H₂O is 249.

Molecular mass is a measure of the total mass of one mole of a substance, which is defined as the mass of the substance divided by the number of molecules it contains. It is typically expressed in g/mol and is also known as molar mass. Molecular mass is determined by the types and number of atoms that compose a molecule, and is an important factor in understanding the properties of a substance.

This is calculated by adding the atomic masses of all the atoms present in the compound.
The atomic mass of copper is 64, sulphur is 32, oxygen is 16, and hydrogen is 1.
So, the relative molecular mass of hydrated Copper (II) tetraoxosulphate (VI) CuSO4.5H₂O is 64 + 32 + (16*4.5) + (1*5) = 249.

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Answer:

D. 132.17 amu

Explanation:

The formula mass of a compound can be determined from the formula of the compound thus, from the number each elements present. The formula mass of (NH₄)₂SO₄ is 132.17 amu.

What is formula mass?

Formula mass of a compound is the mass calculated from its formula. Each elements has a definite mass called its atomic mass expressed in g/mol or amu.

Mass number of an element is the sum of number of its protons and neutrons. The actual mass of an element is calculated with respect to the mass of 1/12th of Carbon-12 and it is called relative mass.

Here, the atomic mass of N = 14.006 amu

                        mass of H = 1.008 amu.

There are 4 hydrogen thus 4 × 1.008 = 4.008 u.

The mass of two units of  NH₄ is = (14.006 + 4.008) × 2

                                                      = 36.028 u.

Atomic mass of sulfur = 32.6 amu

atomic mass of oxygen = 15.9 amu.

Thus for 4 oxygens = 15.9 × 4 =  63.6 u

The mass of SO₄ unit = 32.06 + 67.6 = 96.2u

Thus the total mass of (NH₄)₂SO₄ = 96.2 + 36.028

                                                        = 132.17 amu

Hence, the formula mass of (NH₄)₂SO₄ is 132.17 amu. Thus, option D is correct.

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The pressure, in atmospheres, exerted by a 0.100 mol sample of oxygen in a 2.00 L container at 273 °C is 2.24 × 10⁰ atm.

The pressure of a substance can be calculated using the following formula;

PV = nRT

According to this question, the pressure, in atmospheres, exerted by a 0.100 mol sample of oxygen in a 2.00 L container at 273 °C can be calculated as follows:

P × 2 = 0.1 × 0.0821 × 546

2P = 4.48266

P = 2.24 × 10⁰ atm

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Answer:

Cardiac muscle cells are located in the walls of the heart, appear striated, and are under involuntary control. Smooth muscle fibers are located in walls of hollow visceral organs, except the heart, appear spindle-shaped, and are also under involuntary control.

Explanation: