Using the dimensional Analysis
In the Above questions to convert 14,612 mL to DAL which of the following portrays to correct set up

Answer:

heterogeneous mixture

Explanation:

the particles of each substance can be seen and the mixture has more than one set of properties.

Answer:

Explanation:

Copper mining is usually performed using open-pit mining, in which a series of stepped benches are dug deeper and deeper into the earth over time. To remove the ore, boring machinery is used to drill holes into the hard rock, and explosives are inserted into the drill holes to blast and break the rock.

Answer: El polvo de hornear obtiene su energía de una reacción química que produce burbujas de aire, mientras que la levadura es un organismo vivo real que produce de gas a partir de una reacción biológica. Los dos procesos no son similares, y tampoco son intercambiables en las recetas.

Baking powder gets its energy from a chemical reaction that produces air bubbles, while yeast is an actual living organism that produces gas from a biological reaction. The two processes are also not similar and are interchangeable in recipes.

Explanation:

0.00264 moles of sodium borohydride will be used.

m(NaBH₄) = 100 mg ÷ 1000 mg/g

m(NaBH₄) = 0.1 g; mass of sodium borohydride

M(NaBH₄) = 37.83 g/mol; molar mass of sodium borohydride

n(NaBH₄) = m(NaBH₄) ÷ M(NaBH₄)

n(NaBH₄) = 0.1 g ÷ 37.83 g/mol

n(NaBH₄) = 0.00264 mol; amount of sodium borohydride

Sodium borohydride is white solid and it is a reducing agent.

Sodium tetrahydridoborate is an inorganic compound with the formula NaBH₄.

Mass is a fundamental measure of the amount of matter in the object.

Kilogram (symbol: kg) is the base unit of mass in the International System of Units.

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Answer:

Are there any answer choices? There are many options: stainless steel, aluminum, etc.

Explanation:

Answer:

do u need answer for all of them?

The final Concentration of salt having a 5.0 ml sample of a protein in 0.5m nacl. you place the protein/salt sample inside dialysis is 0.62mM.

Concentration is defined as the ratio of number of moles of substance to the volume of the substance occupied.

The dialysis is normally dilution of the solution as the dialysis bag the salt present in protein sample is pass and go to the dialysing rhe solvent (water).

As we know that,

M1V1 = M2V2

M1 and M2 are the initial and final concentration of NaCl in the dialysis bag.

V1 and V2 are the initial and final volume of NaCl in the dialysis bag.

Given,

M1 = 0.5M

V1 = 5mL = 0.005L

V2 = 4 + 0.005 = 4.005L

By substituting all the values, we get

M2 = 0.5 × 0.005/4.005

= 0.00062M

= 0.62mM.

Thus, we calculated that the final Concentration of salt is 0.62mM.

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DISCLAIMER:

The above question is incomplete.

Here is the complete question:

You have a 5.0 ml sample of a protein in 0.5M NaCl. You place the protein/salt sample inside dialysis tubing and place the bag in a large beaker of distilled water. Your goal is to remove as much NaCl from the sample as possible. Since you know that the final salt concentration will be the same inside the tubing as out, you can calculate the final concentration of the salt.

A. If you decide to place the dialysis bag in 4.0 L of distilled water for 12 h the final concentration of the salt would be in ________ mM

Tony with an average speed of 70m/min walks the distance from his house to school in a time of: 30 min

The formula and procedure we will use to solve this exercise is:

t = x/v

Where:

x = distance

t = time

v = velocity

Information about the problem:

Applying the time formula we have that:

t = x/v

t = 2100 m/ (70m/min)

t = 30 min

It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).

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The element from the periodic table which is choose is Hydrogen.

Hydrogen behaves as electronegative atom when it combine with the elements of group 1 and group 2. Since, hydrogen have the capability to accept an electron to acquire stable noble gas electronic configuration like helium.

Hydrogen behaves as electropositive atom when it combine with the elements of group 13, 14, 15, 16 and group 17. Since, hydrogen have the capability to lose an electron to acquire stable noble gas electronic configuration.

Thus, from. above we concluded that hydrogen have unique property rather than another elements. So, it is best suited for assignment project.

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The cycloalkanes have the general formula CnH2n, where n is the number of carbons.

Therefore, the general formula for cycloalkanes is CnH2n.

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.53 micrometers

take away the zeros and decimal it

200ml of 0.1M tris-H with 732ml water and 68ml of 0.1M NaOH

The Food and Drug Administration has approved THAM, a rarely used buffer, for the treatment of metabolic acidosis related to cardiac bypass surgery and metabolic acidosis related to cardiac arrest.

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the question you are looking for is

Tris-hydroxymethyl aminomethane (TRIS) is widely used for the preparation of buffers in biochemical research. Shown here is the structure of TRIS in its protonated form: Its acid dissociation constant, pKa, is 8.32 x10-9 M. You have available at your lab bench a 0.1 M solution of TRIS in its protonated form, 0.1 Msolutions of HCl and NaOH, and ample distilled water. Describe the preparation of a 1 L solution of 0.02 M TRIS buffer, pH 7.8.

Answer:  baseball after being hit by a bat planet in orbit around a starExplanation:

1. The pharmacist would need to put 300 mg of Azithromycin in the IV bag for the child.

2. The ordered dose of Morphine sulfate is safe for the child as 0.30 mg is slightly lower than 0.31 mg.

1. Azithromycin dosage for a child who weighs 20.0 kg:

The physician ordered Azithromycin at a dose of 15 mg/kg IV (intravenous) star.

Weight of the child (W) = 20.0 kg

Amount of Azithromycin needed = Weight of the child × Dose per kg

                                                       = 20.0 kg × 15 mg/kg

                                                       = 300 mg

Thus, the pharmacist need to put 300 mg of Azithromycin.

2. Morphine sulfate dosage for a child who weighs 31.0 kg:

The physician ordered Morphine sulfate at a dose of 0.30 mg IM (intramuscular) stat.

Weight of the child (W) = 31.0 kg

Recommended dose of Morphine sulfate = 0.01 mg/kg

                                                                       = 0.01 mg/kg × 31.0 kg

                                                                       = 0.31 mg

The ordered dose of 0.30 mg is slightly lower than the recommended dose of 0.31 mg for a child who weighs 31.0 kg.

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Ethene (H2C=CH2) is a gaseous by-product of the long-chain hydrocarbons that are cracked to create highly sought-after goods like gasoline and aviation fuels.

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Nothing happens if the iron rod is inserted into the nitrogen. However, when the iron rod is suspended in the air.

A non-metal, nitrogen is. As a result, it typically interacts with metals to create ionic compounds. Only when the reactants produce products that allow the system as a whole to release energy does the reaction take place. If the system requires energy to undergo the reaction, the reaction cannot take place. When iron is exposed to oxygen and moisture for an extended length of time, a process known as iron oxide occurs. At the atomic level, oxygen bonds to iron to produce the complex known as an oxide, which weakens the metal bond.

The complete question is - If a piece of pure iron is placed in pure nitrogen, nothing happens. If the iron is exposed to air, it begins to rust. What conclusion can you make about air, based on this observation?

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The thing that will happen to the temperature if you use 75 ml of HCl and 75 ml of NaOH instead is that it increases as more heat is released.

A neutralization occurs when NaOH and HCl are combined. Each chemical reaction has a unique heat of reaction, which is the heat exchanged during the process.

The reaction in issue is exothermic (emits heat), and the amount of heat emitted relies on the chemicals used, their concentrations, and the working temperature (it is produced at a low temperature).

The fluctuation in temperature and the mass used determine how much heat is allocated.

In this case, the thing that will happen to the temperature if you use 75 ml of HCl and 75 ml of NaOH instead is that it increases as more heat is released.

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The replacement of gold from trapped pedestal is a mathematical equation.

Density is defined as the measurement of how tightly the material is packed together. It can also be defined as the substance mass per unit volume.

The S.I. unit of density is kilogram per cubic meter.

Density =  mass / volume

Thus, the replacement of gold from trapped pedestal is a mathematical equation.

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Beryllium, Calcium, Radium elements should have the most similar chemical properties.

Chemical properties can be defined as a characteristics or behavior of the substance that be observed when it undergo a chemical change or reaction. Chemical properties may include flammability, toxicity, acidity, basicity, reactivity, heat of combustion and many more.

Beryllium, Calcium and Radium are the elements of alkaline earth metal and the share most of the similar chemical and physical properties.

Thus, Beryllium, Calcium, Radium elements should have the most similar chemical properties.

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Answer:

Explanation:

because seems it has a chemical that can remove fire they added it on a fire extinguisher

Answer:

Explanation:

why is baking soda used as acid fire extinguisher? Carbon dioxide gas is neither combustible nor helps combustion. It is heavier than air and cuts off the supply of oxygen from air and hence extinguishes the fire. … Hence, sodium bicarbonate is used in fire extinguishers.

A rock will scratch with a fingernail but not a copper penny then according to Mohs hardness scale, the student will determine that the rock is more harder than fingernail and copper penny.

Mohs hardness scale can be defined as a qualitative ordinal scale ranges from one to ten characterizing the scratch resistance of various minerals through the ability of harder material to the softer material.

Hardness can be defined as the measure of the material resistance to localized permanent deformation. Permanent deformation is also known as plastic deformation.

Thus,  rock will scratch with a fingernail but not a copper penny then according to Mohs hardness scale, the student will determine that the rock is more harder than fingernail and copper penny.

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Answer:

the graph shows that the filtrated solution was acidic but when we add nh3 (base) ,acid base reaction take place and in this reaction salt and water are form by this oh-ion concentration keep on increasing and change ph from 4 to 10

Answer:

An easy way to work out the charge of an atom is to look at the periodic table. Elements on the left side of the table usually become positively charged ions and elements on the right side of the table typically have a negative charge. However, you can use a scientific formula to determine the formal charge of an atom.

Explanation:

Some precipitate remained in the reaction flask after the filtration process, which is one of the sources of mistake in the analysis.

Gravimetric analysis has several practical applications, such as monitoring lead concentrations in drinking water, which, if left unchecked, could result in lead poisoning and even death.

After the sample has been dissolved, the stages necessary for gravimetric analysis are as follows: solution preparation, precipitation, digestion, filtration, washing, drying or igniting, weighing, and finally calculation.

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the question you are looking for is

During a gravimetric analysis experiment to determine the salt (NaCl) content of a chicken soup sample, a precipitate of silver chloride was produced, dried and weighed. The sources of error in the analysis include

I)The precipitate was not washed before it was dried.

II)The soup contained some sodium iodide in addition to the sodium chloride.

III)Some precipitate remained in the reaction flask after the filtration process.

Which of these errors could account for a lower than expected mass of silver chloride precipitate?

The apparatus used are dewer vessel 1000ml capacity complete with cover, electric stirrer 300rpm, base with stand, and W = zinc, X = aluminium, Y = magnesium, Z = iron and metals reactivity is chart listing metals in order of decreasing reactivity

Here given data is Four different powdered metals W,X,Y, Z react with Dilute sulfuric acid

When W=zinc, X=aluminium, Y=magnesium, Z=iron this four metals are reactive with Dilute sulfuric acid then give ZnSO₄, Al₂(SO)₃,  MgSO₄, FeSO₄ and magnesium is very active metal and gold and platinum are not react with Dilute sulfuric acid and apparatus used are dewer vessel 1000ml capacity complete with cover, electric stirrer 300rpm, base with stand

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Mendeleev left gaps in the periodic table to place elements not known at that time. By looking at the chemical properties and physical properties of the elements next to a gap, he predicted the properties of these undiscovered elements.

Thus we can conclude that, the chemical and physical properties of the elements next to the gap, he was able to predict gallium and germanium.

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In 1871, the atomic masses and other chemical characteristics of gallium, germanium, and scandium were unknown, but Mendeleev provided slots for each and made predictions about them.

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The reaction between 3.214 g magnesium and 8.416 g bromine produces  9.7 g of MgBr2.

The balanced chemical reaction of magnesium and bromine is shown below.

Mg + Br2 → MgBr2

Step 1: Convert the given mass of reactants to moles of reactants

moles Mg = mass Mg / molar mass Mg

moles Mg = 3.214 g / 24.31 g/mol

moles Mg = 0.1322 mol

moles Br2 = mass Br2 / molar mass Br2

moles Br2 = 8.416 g / 159.808 g/mol

moles Br2 = 0.0527 mol

Step 2: Bromine (Br2) is determined to be the limiting reactant. Since the stoichiometric ratio between the reactants is equal to 1, the reactant with a lower number of moles would be the limiting reactant.

Step 3: Convert moles of Br2 to the mass of MgBr2. Their stoichiometric ratio is also 1, which makes the solution easier.

mol Br2 = mol MgBr2

mass MgBr2 = mol MgBr2 * molar mass MgBr2

mass MgBr2 = 0.0527 mol * 184.118 g /mol

mass MgBr2 = 9.70 g

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The metals are good conductor of electricity, thus among this titanium is the best conductor of electricity.

Conductors is defined as a substance or type of material that allow flow of charge or electricity in one or more direction. Metals are commonly consider as a good conductor of electricity. It allow electricity to flow through them very easily and produce electric current.

Metals are defined as the elements that are typically hard due to presence of strong metallic connection between the atoms.

Thus, metals are good conductor of electricity, thus among this titanium is the best conductor of electricity.

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Answer:

2

1

2

3

3

1

Explanation:

In the first law, an object will not change its motion unless a force acts on it.
This is exactly how it worked in the (Last one). There is no movement with no force. The Second one seems a bit strange, but it's been known that inertia is the same as the first law. Why is that? Because there is no force acting on the water but there is some force acting on the glass.

In the second law, the force on an object is equal to its mass times its acceleration.
(First one& Third One) Increasing mass means increasing the force to accelerate with the same magnitude

In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction
The Fifth one. The combustion of the fuel produce force which is greater than the gravititional force acting on the rock. Therefore, a force has a reaction force which accelerates the rock upwards.
The Fourth is pretty much the same. A force of inertia acting as the reaction force here which refuses to move with the paper.
If you didn't get what i mean in any of those please let me know