Dry ice is solid carbon dioxide. A 0.05 g sample of dry ice is placed in an evacuated 4.6L vessel at 30 C. Calculate the pressure inside the vessel after all the dry ice has been converted to CO2 gas.

Answer:

11.03g/cm³

Explanation:

Given parameters:

Mass of the prism = 12358g

Height = 35cm

base side length = 4cm

second base side length = 8cm

Unknown:

Density of the rectangular prism = ?

Solution:

To find the density of the prism, we must find the volume first.

Density is the mass per unit volume of a substance;

   Density   = \(\frac{mass}{volume}\)

Volume of rectangular prism  = length x width x height

                                                 = 4 x 8 x 35

                                                 = 1120cm³

Insert the parameters;

  Density = \(\frac{12358}{1120}\)   = 11.03g/cm³

Answer:

Protein

Explanation:

Protein is used to make insulation (like fat) and is used to store energy taken form food (please tell me if this works)

Protein which is made up of amino acids is a  type of biomolecule that can be used for energy storage and insulation.

Amino acids are defined as the substances which are considered to be the monomers of proteins.Every amino acid has the same structure consisting of a central carbon which is bonded to an amino group , carboxyl group and a hydrogen.

Each amino acid also has another atom or a group of atoms bonded to the alpha carbon which are also known as the R group or the variable group of the side chain.There are 20 common amino acids present in natural proteins and each amino acid has the same backbone.

The sequence and number of amino acids determines protein's shape,size and also its function. Each amino acid is attached to the other by a covalent bond formed by a dehydration reaction.

Learn more about amino acids,here:

https://brainly.com/question/15823799

#SPJ6

Answer:

can you show us question 3 pls

Explanation:

Dry cell batteries and household pesticides are classified as hazardous waste.

Hazardous household waste is the waste product came from households that is toxic, flammable, and reactive.

The dry batteries are common waste, it can be blasted in the dustbins or react with other thing to produce toxic chemicals

Thus, the correct option is hazardous waste.

Learn more about hazardous household waste

https://brainly.com/question/14637079

#SPJ4

The empirical formula, which represents the simplest ratio of atoms in a compound, may be useful in the lab setting but not useful for predicting the properties and functions of materials.

In the lab, the empirical formula can be useful for identifying the composition of a compound, especially if the molecular formula is unknown. It can also help in determining the stoichiometry of a reaction, which can be important for conducting experiments. However, the empirical formula does not provide information about the actual number of atoms or the arrangement of atoms within a molecule, which can greatly affect the properties and functions of a material.

Therefore, while the empirical formula can be a useful tool in the lab setting, it may not be sufficient for predicting the properties and functions of materials. More detailed information about the molecular formula and structure is needed for accurate predictions.

To know more about empirical formula, visit:

https://brainly.com/question/14044066

#SPJ11

Explanation:

I wasn't taught lcm method

I only know the trial and error method

2AlBr3 + 3K2SO4 ----6KBr + Al2(SO4)3

a. atom, b. molecule, c. molecule, d. molecule, e. atom.

A single atom or more make up a molecule. If they include more than one atom, they may all be the same (for example, an oxygen molecule has two oxygen atoms) or they may all be distinct (a water molecule has two hydrogen atoms and one oxygen atom). Numerous thousands of atoms can be found in biological compounds like DNA and proteins. A molecule is the smallest unit of any substance that is capable of existing on its own while maintaining all of the substance's physical and chemical characteristics. A molecule can be made up of one or more components. Atoms can be separated much further from molecules. For instance, oxygen atoms and molecules are denoted by the letters O and O2, respectively.

Classify each of the following as an atom or a molecule

a. Be

b. CO2

c. N2

d. H2O

e. Ne

Learn more about molecules here:

https://brainly.com/question/19922822

#SPJ4

Hydrogen can be obtained in large quantities from water gas by the reaction of water vapor with carbon monoxide. The gas mixture produced can be used in various hydrogen production processes such as steam reforming, partial oxidation, and autothermal reforming.

Hydrogen, a colorless, odorless, and tasteless gas, is obtained from water gas by the reaction of water vapor with carbon monoxide. When water is reacted with coke or other raw materials, a mixture of hydrogen and carbon monoxide gases is produced. The gas mixture is known as water gas, and it can be used to produce large quantities of hydrogen.There are several methods for producing hydrogen from water gas, including the following:

1. Steam reforming: In this process, water gas is reacted with steam to produce hydrogen and carbon dioxide. The reaction is endothermic and requires high temperatures and pressure.

2. Partial oxidation: In this process, water gas is partially oxidized with oxygen or air to produce hydrogen and carbon dioxide. The reaction is exothermic and can produce high temperatures.

3. Autothermal reforming: In this process, water gas is partially oxidized and reacted with steam in a single step. This process can produce high purity hydrogen with low emissions of greenhouse gases.

For more question Hydrogen

https://brainly.com/question/24433860

#SPJ8

Answer:

The number of protons in one atom of an element determines the atom's identity, and the number of electrons determines its electrical charge. The atomic number tells you the number of protons in one atom of an element.

A reaction occurs at the cathode is Option b. 2H₂O (l) + 2e⁻ → H₂ (g) + 2OH⁻ (aq)

At the cathode, reduction occurs, which involves the gain of electrons. In this case, water molecules (H₂O) are reduced to produce hydrogen gas (H₂) and hydroxide ions (OH⁻).

The half-reaction at the cathode can be understood as follows:

2H₂O (l) + 2e⁻ → H₂ (g) + 2OH⁻ (aq)

Here, two electrons (2e⁻) are gained by two water molecules, resulting in the formation of hydrogen gas (H₂) and hydroxide ions (OH⁻) in the aqueous solution. Therefore, the correct option for the reaction occurring at the cathode in the given electrolytic cell is 2H₂O (l) + 2e⁻ → H₂ (g) + 2OH⁻ (aq). Therefore, Option b is correct.

The question was incomplete. find the full content below:

A reaction in an electrolytic cell is as follows:

2NaCl(aq) + 2H₂O (1)→ Cl₂ (g) + H₂ (g) + 2NaOH(aq).

Which reaction occurs at the cathode?

a. Cl₂ (g) + 2e → 2Cl(aq)

b. 2H₂O (1) + 2e → H₂ (g) + 2OH(aq)

c. H₂(g) + 2OH(aq) → 2H₂O (1) + 2e¯

d. 2C1 (aq) → Cl2 (g) + 2e7

Know more about cathode here:

https://brainly.com/question/29784730

#SPJ8

Answer:

3.96 × 10⁻³ mol Pb

Explanation:

Step 1: Find molar mass

Pb (Lead) - 207.2 g/mol

Step 2: Use Dimensional Analysis

\(0.821 \hspace{2} g \hspace{2} Pb(\frac{1 \hspace{2} mol \hspace{2} Pb}{207.2 \hspace{2} g \hspace{2} Pb} )\) = 0.003962 mol Pb

Step 3: Simplify

We have 3 sig figs

0.003962 mol Pb ≈ 0.00396 mol Pb

0.00396 mol Pb = 3.96 × 10⁻³ mol Pb

Answer:

See explanation

Explanation:

An intrinsic property is a property that is internal, that is, it characterizes the substance under study. The possession of an intrinsic property depends on the nature of the substance. An intrinsic property does not depend on amount of substance but on the nature of the substance.

Examples of intrinsic properties include; Density. Solubility, Melting Point, Freezing Point, Boiling Point, Conductivity etc.

Intrinsic properties really represent the matter that is being studied. For instance, the boiling point of water will always be 100°c. No other liquid can boil exactly at that temperature. Hence, this intrinsic property can always be used to identify an unknown liquid as water.

The students were right, studying intrinsic properties accurately represent the matter that is being studied.

The measurable difference in charges of atoms is known as electronegativity.

Electronegativity is the measure of the capability of an atom in a molecule to pull electrons toward itself. In general, this measure increases from left to right across a period and decreases down a group of the periodic table.

Electronegativity usually increases with increasing atomic number and decreases with increasing distance from the nucleus of an atom.

To know more about electronegativity please refer to:

https://brainly.com/question/29203628

#SPJ11

Answer:

Explanation:

Now, you know that this solution has a molarity of 6.00 M, which basically means that every liter, which is the equivalent of 1000 mL, will contain 6.00 moles of ammonia. Since we've picked a sample of 1000 mL, you can say that it will contain 6.00 moles of ammonia. To convert this to grams, use the compound's molar mass

Answer:

Sodium fluoride is conceived to be composed of equal numbers of

Na+ and F− ions that are electrostatically bonded together in an extended, non-molecular array. And therefore sodium fluoride is neutral.

Explanation:

An example of observation that would provide a scientist with the best data for planning a new investigation about plant growth is; Choice C; The scientist observed that after about a month, the green plant in some soil looked taller than the rest of the plants.

Discussion:

An observation like that in Choice C where in; what soil the green plant looked taller than the rest of the plants is unknown forms a basis for the planning a new investigation.

Ultimately, there must be unknown or unsure data for the planning of a new investigation.

Read more:

https://brainly.com/question/1854911

To calculate the molarity of cinoxate in 100 ml of sunscreen B16, we need to know the mass of cinoxate present in 100 ml of B16.

First, we can calculate the mass of B16 by multiplying its density (1.0 g/ml) by its volume (100 ml), which gives us 100 g.
Next, we can calculate the moles of cinoxate by dividing the mass of cinoxate by its molar mass. The molar mass of cinoxate is given as 250 g/mol.

Since we don't have the mass of cinoxate, we cannot provide a long answer to your question. However, if you provide the mass of cinoxate, I would be happy to help you calculate the molarity.

To know more about molarity visit:

brainly.com/question/14848468

#SPJ11

There are 24 valance electrons in the compound.

We know that the valence electrons are those that are found on the valence shell of an atom. There are four atoms that can be seen in the compound that is under consideration. The atoms are selenium, bromine (2 atoms) and oxygen.

Given that there are seven valence electrons in bromine and six valence electrons in oxygen and selenium. We have;

2(7 electrons of bromine) + 6 electrons of oxygen + 4 electrons of Se

= 24 electrons

Learn more about valence electrons:brainly.com/question/8906371

#SPJ1

Answer:

This relationship between temperature and pressure is observed for any sample of gas confined to a constant volume. I find that temperature and pressure are linearly related. If the temperature on the kelvin scale increases by a certain factor, the gas pressure increases by the same factor. On the can is the warning “Store only at temperatures below 120 °F (48.8 °C). Do not incinerate.” The can contains an amount of isobutane gas at a constant volume, so if the temperature increased by heating, the pressure will increase proportionately. High temperature could lead to high pressure, causing the can to burst. Just like,  The gas in the can is initially at 24°C,  and the can has a volume of 350 mL.  If we fill a balloon with air and seal it,  If we put the balloon in a refrigerator, the gas inside gets cold and the balloon shrinks. If we make the balloon very cold, it will shrink a great deal, and it expands again when it warms up. Temperature is sometimes measured with a gas thermometer by observing the change in the volume of the gas as the temperature changes at constant pressure. A volume change caused by a temperature change at constant pressure means we should use Charles’s law. Decreasing the volume of a contained gas will increase its pressure, and increasing its volume will decrease its pressure. In fact, if the volume increases by a certain factor, the pressure decreases by the same factor, and vice versa.  The earth’s atmosphere exerts a pressure, as does any other gas. Although we do not normally notice atmospheric pressure, we are sensitive to pressure change, for example, when your ears “pop” during take off and landing while flying, or when you dive underwater.  Although the force of each collision is very small, any surface of appreciable area experiences a large number of collisions in a short time, which can result in a high pressure. In fact, normal air pressure is strong enough to crush a metal container when not balanced by equal pressure from inside the container.  Atmospheric pressure is caused by the weight of the column of air molecules in the atmosphere above an object, such as the tanker car. At sea level, this pressure is roughly the same as that exerted by a full-grown African elephant standing on a doormat, or a typical bowling ball resting on your thumbnail. These may seem like huge amounts, and they are, but life on earth has evolved under such atmospheric pressure. If you actually perch a bowling ball on your thumbnail, the pressure experienced is twice the usual pressure, and the feeling is unpleasant.

Explanation:

A contained gas's pressure rises as its volume decreases, while its pressure falls as its volume rises. In fact, if the volume increases by a certain factor, so does the pressure, and vice versa. The earth's atmosphere, like any other gas, exerts pressure.

Boyle's Law describes the relationship between pressure and volume. The volume of a gas decreases as the pressure on it increases because the gas particles are forced closer together. As the pressure on a gas decreases, the volume of the gas increases because the gas particles can now move farther apart.

As a result, volume is inversely proportional to pressure. A straight line is obtained by plotting pressure (p) against the reciprocal of volume (1/V), the gradient of which is the constant in Boyle's Law. The number of gas particles per unit volume increases as volume decreases.

The pressure-volume relationship of a confined gas is inversely proportional. This relationship is demonstrated by the data collected and the graphs plotted.

Thus, A contained gas's pressure rises as its volume decreases, while its pressure falls as its volume rises.

To learn more about pressure and volume, follow the link;

https://brainly.com/question/5018408

#SPJ2

Answer:

Huh? I guess it's

Explanation:

Answer:

There are two properties that can be used to identify an element: the atomic number or the number of protons in an atom. The number of neutrons and number of electrons are frequently equal to the number of protons, but can vary depending on the atom in question.

The formula for the volume of a rectangular solid is Volume = length * width * height, or V = lwh.

Converting to cm = \( \frac{660}{10} = 66 {cm}^{3 } \\ \)

- BRAINLIEST answerer

Answer:B is the right answer

Explanation:

Answer:

Mass, temperature, and phase.

I think temperature because the higher the temperature of a given quantity of a substance, more is its thermal energy. Similarly, for the same temperature, higher mass of a substance will contain more thermal energy.

Answer: [Kr] 4d10 5s2 5p5

Ionization energy rises when you traverse the second period of the periodic table from left to right.

The periodic table, commonly referred to as the periodic table of the elements, is a table that arranges the chemical elements in rows and columns. It is frequently used in physics, chemistry, and other sciences and is frequently regarded as a symbol of chemistry.

The mechanism by which ions are created by the gains or losses of an electrons from an element or compound is known as ionization. An anion is created when an atom or molecule picks up an electron; a cation is created when they lose an electron (a cation). Ion production can result in energy gain or loss.

To know more about electron, visit :

https://brainly.com/question/1255220

#SPJ4