S + 6 HNO3 → H2SO4 + 6 NO2 + 2 H2O

In the above equation, how many grams of water can be made when 12.1 moles of HNO3 are consumed?

Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:
Element Molar Mass
Hydrogen 1
Nitrogen 14
Sulfur 32
Oxygen 16

Answer:

The minimum amount of NaOH(aq) solution needed to add is 0.0560 L. This can be calculated by using the following equation:

Moles of Cd2+ = 0.0220 M x 0.300 L = 0.0066 mol

Moles of NaOH = 0.0066 mol x 2 = 0.0132 mol

Volume of NaOH = 0.0132 mol/1.25 M = 0.0560 L

Explanation:

1 mole of magnesium atoms will react with 2 moles of oxygen molecules. This is because the chemical equation for the reaction between magnesium and oxygen is: Mg + O2 → MgO.

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants (starting materials) on the left side and the products (resulting substances) on the right side. The symbols used to represent the reactants and products are chemical formulas, which use the symbols of the elements in the reaction. The arrow between the reactants and products indicates the type of reaction taking place. The coefficients next to the symbols and formulae of entities indicate the number of moles of each species that are involved in the reaction. The overall reaction is balanced when the number of atoms of each element on the left side of the equation is equal to the number of atoms of that element on the right side of the equation.

This equation shows that for every 1 mole of magnesium atoms, 2 moles of oxygen molecules are required for the reaction to take place. Therefore, 1 mole of magnesium atoms will react with 2 moles of oxygen molecules.

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The vapor pressure at 49.5 °C is:

DP = 48.8 kJ/mol / 8.314 J/mol*K * (1/451.0 K - 1/322.65 K) * 49.5

DP = 0.24 torr (approx)

The vapor pressure of benzaldehyde at 49.5°C is approximately 0.24 torr.

The heat of vaporization (ΔHvap) and the normal boiling point (Tb) can be used to determine the vapor pressure of a liquid at a given temperature using the Clausius-Clapeyron equation. The Clausius-Clapeyron equation states that the change in vapor pressure (DP) with temperature (DT) is directly proportional to the heat of vaporization (ΔHvap) and inversely proportional to the absolute temperature (T) in kelvin.

DP/DT = ΔHvap / R * (1/T)

where R is the gas constant.

We can use this equation to solve for the vapor pressure of benzaldehyde at 49.5°C.

First, convert 49.5°C to kelvin:

T = 49.5°C + 273.15 = 322.65 K

Next, we need to use the Clausius-Clapeyron equation to solve for vapor pressure at a temperature T and the normal boiling point Tb:

DP/DT = ΔHvap / R * (1/T) = ΔHvap / R * (1/Tb - 1/T)

DP = ΔHvap / R * (1/Tb - 1/T) * DT

The vapor pressure at 49.5 °C is:

DP = 48.8 kJ/mol / 8.314 J/mol*K * (1/451.0 K - 1/322.65 K) * 49.5

DP = 0.24 torr (approx)

The vapor pressure of benzaldehyde at 49.5°C is approximately 0.24 torr.

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The vapor pressure of the benzaldehyde is  196 torr.

We know that the vapor pressure would have to do with the ease that we can use to convert the substance that is in question from liquid to gas. When we have two substances that are at different temperatures than we have;

ln(P2/P1) = -ΔH/R(1/T1 - 1/T2)

P2 = final pressure

P1 = initial pressure

R = gas constant

T1 = initial temperature

T2 = final temperature

Thus;

ln(P2/1) = -48.8* 10^3/8.314(1/451 - 1/322.5)

lnP2 = -5869.6(0.0022 - 0.0031)

lnP2 = 5.28

P2 =e^5.28

P2 = 196 torr

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the mass of nitric oxide produced by the reaction of 8.4 g of oxygen gas is 4.32 g. ammonia chemically reacts with oxygen gas to produce nitric oxide and water.

Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving.

Oxygen helps organisms grow, reproduce, and turn food into energy. Humans get the oxygen they need by breathing through their nose and mouth into their lungs. Oxygen gives our cells the ability to break down food in order to get the energy we need to survive.

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Grams of aluminum that will be produced if 1.0 g of Ba react with 1.80 g of Al2(SO4)3 will be 0.28g Al. Hence option c) is correct.

A balanced equation is a chemical equation where mass is conserved and there are equal numbers of atoms of each elements on both the sides of equation.

Given, 1.80 g of Al2(SO4)3 and 1.0 g of Ba

So, (1.8 g)/(341.96 g) = 0.00526 moles of Al2(SO4)3

And, 1 mole = 341.96g Al2(SO4)3

Now, (0.00526 moles of Al2(SO4)3)*(2 moles of Al)

= 0.01052 moles of Al

So, (0.01052 moles of Al)*(27 grams of Al)

= 0.28g Al

Hence, option c is correct.

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6) When 10.000 g of a hydrated compound are analyzed in the laboratory, the following analysis is obtained: 1.425 g of water, 5.462 g of lead, 1.266 g of carbon, 1.687 g of oxygen, and 0.160 of hydrogen. What are the name and formula of the compound?

The name and formula of the compound can be determined by analyzing the data given in the question. Based on the information provided, the compound contains lead, carbon, oxygen, and hydrogen. The molecular formula for the compound can be determined by adding up the number of atoms of each element present.

From the data given, the compound contains 1.266 g of carbon, which is equivalent to 1.266/12.01 = 0.105 mol of carbon atoms. It also contains 5.462 g of lead, which is equivalent to 5.462/207.2 = 0.026 mol of lead atoms. The compound also contains 1.687 g of oxygen, which is equivalent to 1.687/16.00 = 0.105 mol of oxygen atoms, and 0.160 g of hydrogen, which is equivalent to 0.160/1.01 = 0.158 mol of hydrogen atoms.

The molecular formula for the compound is therefore Pb(C2H2O2). However, it is also mentioned that the compound is hydrated, which means that it contains water. The 1.425 g of water present in the compound is equivalent to 1.425/18.02 = 0.079 mol of water molecules. The compound 1 likely Pb(C2H2O2)·xH2O, where x represents the number of water molecules present in the compound.

A change in the size of the moon jellies' resource population can change the number of births in the moon jelly population because the big size of the resources can produce more births.

When there is more energy storage molecules present in the moon jellies, they can reproduce more, in more births. Fewer deaths would also lead to the jelly population increasing. The sea turtle population, and the moon jellies consumer population is also decreased.

There must be a change to the birth rate or the death rate in the moon jelly population. Within a population, organisms are born and dying continuously. If the number of births and deaths in a given time interval are equal, then the population size will remain stable.

So we can conclude that a large population of resources will lead to more births.

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Answer:

Clastic or detrital sedimentary rocks are made from pieces of bedrock, sediment, derived primarily by mechanical weathering.

Explanation:

Note that if the water volume (ML) in a graduated cylinder is 30.0 and the volume of a drop of water is 1.00 and the number of drops is 15, the average drop volume (ML) is 2.0 mL.

Average drop volume is a measurement of a droplet's average volume. It is employed in a wide range of applications, including laboratory experimentation, medical research, and medication delivery systems.

It aids in deciding the proper amount of liquid to utilize in a certain condition. It also aids in the creation of novel pharmaceuticals and assuring exact and constant dosing in medical treatments.

You may calculate the average drop volume by dividing the total amount of water (30.0 mL) by the number of drops (15). That is to say:

(30.0 mL divided by 15 drops = 2.0 mL/drop)

Hence where the number of drops is 15mL and the volume of one drop is 1.00mL, the average Volume of a Drop is 2.0mL

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3.00 x 108 m/s should be written in scientific notation. Medical Notation (numbers less than 1.0) Add a decimal place after the decimal, to the right. To the left of the decimal point, there should only be one number. The brand-new number ranges from 1.0000 to 9.9999.

For the purpose of providing an exact result, certain elements of scientific notation must be included. In scientific notation, all numbers have the format "m x 10n. Important components for determining the scientific notation include the following:

Decimal: You move the decimal a specific number of times to the right or left of the coefficient to discover the scientific notation until it becomes a number equal to or greater than one and less than 10.

Coefficient: To calculate this value, the decimal point must move a predetermined amount of times. An amount that is one or larger and less than ten is referred to as a coefficient.

Base: The base number is always 10. The exponent comes into play when multiplying to arrive at the final solution.

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Answer: ew i hate science but ive done that same thing before i dont remember the answers though

Explanation:

Answer:

a whole new world too be into

Explanation:

Answer:

That would be A sir or Miss

Explanation: Tell me if I am wrong, Also hope this helped you!

Answer:  Blood alcohol levels at autopsy are valid up to 48 hours after death when simple principles are observed in the collection and storage of samples. Alcohol levels in samples of blood taken from the intact heart are as significant as levels of blood from the femoral veins.

Explanation:

Answer:

If the victim was submerged in water

Explanation:

Answer:

beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

Alkaline earth metals are those that have two valence electrons in their outermost shell.

Barium (Ba), Radium (Ra), Strontium (Sr), Magnesium (Mg), Calcium (Ca), and Beryllium (Be) are the six alkaline earth metals.

By donating their outermost electrons, they take on the noble gas electron configuration, which increases their stability. When electrons are transferred to an atom with an electronegative charge, the alkaline earth metals get a positive charge.

The second column of the periodic table contains alkaline earth metals, which are very reactive metals. These metals are the building blocks of the entire world. These metals are typically found as sulfates in nature.

A few examples of minerals are gypsum, calcium sulfate, epsomite, magnesium sulfate, barite, and barium sulfate.

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Answer:

wow okay um so first you go home, get in bed, never open that computer again

Explanation:

The electronic configuration which represents a transition element is 1s²2s²2p⁶3s²3p⁶4s²3d⁷

Transition elements are placed between the metallic S-block elements and nonmetallic P-block elements in the periodic table. They are D-block elements and have features similar to both metals and nonmetals, to some extent. This is why they are called transition elements.

One remarkable feature of these elements happens during the addition of electrons to them. Contrary to S and P-block elements, electrons are added to the penultimate shell, not the last shell. These elements often feature partially filled d-orbitals and have multiple oxidation states.

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Answer:

increasing to decreasing:

F--- S--- Al--- Na--- K

not sure...

Answer:

Explanation:

1) The following balanced chemical equations are for based on the combustions of various fuels. Calculate the heats of combustion for each reaction a. C₂H₂OH + ...

Answer:

it should be chlorine gas

Explanation:

The biotic factor of an aquarium ecosystem is algae growing on the glass.

The abiotic factors of an aquarium ecosystem are rock structure, temperature of the water, and amount of sunlight.

The example that describes an abiotic factor interacting with a biotic factor is the amount of sunlight affecting the growth of a plant.

All the listed items in Ms. Brown's class, including gravel, grass, butterfly, sunflower, bird feeder, and flowerpots, are a part of the garden ecosystem.

An ecosystem is a community of living organisms (biotic factors) interacting with each other and with their physical environment (abiotic factors) in a specific area. It includes all the living and non-living components of the environment that interact with each other. Examples of ecosystems include a coral reef, a forest, a desert, and even an aquarium or a garden. Ecosystems can be large or small and can be found on land or in water. They are essential for the survival of living organisms as they provide food, shelter, and other resources necessary for life.

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Answer:

COVALENT

Explanation:

covalent and is formed by the sharing of two valence electrons.

Electrons first occupy the position in lowest possible energy.

orbital diagrams:-

The higher the energy level, the Third energy the electrons in that level have. On the orbital diagram, fill in the boxes to label the representations of an orbital and a sublevel.   2   electrons can occupy a single orbital, and these electrons have Opposite spin. Within a sublevel, all the orbitals fill with one electron, each of which has the Positive spin before a second electron fills any of the orbitals.

what is Orbital?

Each energy position is made up of areas known as an orbital. An orbital is an area of probability in which electrons can be set up. Each energy position, except for the first, has further than one orbital. Each orbital has a specific shape.

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All the EM waves travel at the same speed. The equation for speed is frequency (v) times the wavelength (λ). Speed of light equals 300000 km/s. Hence one number goes to 3 × 10⁸ m and other number is 1 s⁻¹.

Electromagnetic waves are waves moving without a medium through vacuum. They are accompanied with an electric field and magnetic field. The speed of an electromagnetic wave is the product its wavelength and frequency.

c = νλ

Therefore, the given passage can be filled as follows:

All the EM waves travel at the same speed. The equation for speed is frequency (v) times the wavelength (λ). Speed of light equals 300000 km/s. Hence one number goes to 3 × 10⁸ m and other number is 1 s⁻¹.

All EM waves are energetic.  The higher the frequency the more energy in the wave.

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Answer:

Volume is how much space the object is taking up, whereas mass is the measurement of the amount of matter in the object.

Explanation:

Natural vegetative propagation uses bulbils, aerial shoots, roots, underground stems, and subaerial stems. Utilizing unique vegetative components, artificial vegetative propagation is accomplished.

The production and growth of a new plant through asexual means or from a plant fragment is known as vegetative propagation. There is no gamete production or fertilization throughout the process of propagation.

In this procedure, tubers—modified roots—grow into new plants. In some plant species, adventitious buds even grow on the roots. If the correct circumstances are present, these buds develop into new plants or sprouts. Sweet potato and dahlia are two examples.

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In order to react with 467.08 grams of O2, 4034.95 g of toluene (C6H5CH3) is required.

Toluene is a white liquid hydrocarbon found in petroleum and coal tar that is employed like a solvent and in the synthesis of organic compounds. Toluene is a naturally occurring substance found in crude oil and is used for oil refining as well as the production of glues, lacquers, paints, and explosives. Toluene can be discovered in household products like paint, paintbrush cleaner, nail polish, glue, inks, and stain removers.

For the balanced equation

2C6H5CH3 + 3O2 → 7CO2 + 4H2O

We required three steps

1.) Convert mass of O2 to mol of O2

mole = mass / molar mass

2.) Find mole of C6H5CH3 by multiply mol O2 by the mol ratio between O2 and C6H5CH3 in balanced equation.

3.) Find mass C6H5CH3 by multiply mol C6H5CH3 by its molar mass (92.14 g/mol)

= 467.08 gm /15.999 gm × 3/ 2 ×92.14 gm

= 4034.95 gm. of C6H5CH3

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Mass can be calculated by using moles which can be further calculated from multiplication of Molarity to volume. Therefore, the molarity of the HCl solution is 3M. the correct option is option C.

Molarity can be calculated by dividing  number of moles of solute by volume of solution in litre. Molarity is affected by temperature. Its unit is mole/litre. It measure the concentration of any solute in a solution.

Other concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution

Mathematically,

2HCl + Ca(OH)[tex]_2[/tex] [tex]\rightarrow[/tex] CaCl[tex]_2[/tex] + 2H[tex]_2[/tex]O

Molarity of HCL× Volume of HCL=Molarity of Ca(OH)[tex]_2[/tex] ×Volume of  Ca(OH)[tex]_2[/tex]

Molarity of HCL× 1.00 L=1.50 M× 2.00 L

Molarity =3M

Therefore, the molarity of the HCl solution is 3M. the correct option is option C.

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The concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution. Therefore, 0.025  is the number of moles of K+ ions are present in 250 mL of a 0.4M KCl solution.

Molarity can be calculated by dividing number of moles of solute by volume of solution in litre. Molarity is affected by temperature. Its unit is mole/liter. It measure the concentration of any solute in a solution.

Mathematically,

Molarity= number of moles of solute/volume of solution in litre

Substituting values in equation 1

0.4M=number of moles of solute/0.25

number of moles of solute=0.025moles

Therefore, 0.025  is the number of moles of K+ ions are present in 250 mL of a 0.4M KCl solution.

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