what is the maximum amount of flammable liquids that can be stored outside of a rated flammable cabinet in a laboratory?

0.63 mol aluminum will produce 0.63 mol of aluminumchloride from 17.0 g of aluminum.

AlCl3 is the chemical formula for aluminum chloride, sometimes referred to as aluminum trichloride. With the chemical formula [Al(H2O)6]Cl3, it produces hexahydrate, which is composed of six hydrated water molecules. Both are colorless crystals, although iron(III) chloride contamination in samples frequently gives them a yellow hue.

We have excess of chlorine gas and 17.0 g of aluminum

so how many moles of of aluminum chloride could be produced from 17. 0 g of aluminum

to find this first find no of moles in 17.0 g al

that is divide 17.0g al from the molar mass of al that is 26.98

so, 17.0/26.98=0.63 mol

now acc . to a law it is said that 2 moles of aluminum will produce 2 mole of aluminum chloride.

Hence, 0.63 mol aluminum will produce 0.63 mol of aluminumchloride from 17.0 g of aluminum.

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Answer:

The amount of heat is 431.12 kJ/mol.

Explanation:

Given that,

Mass of Ba = 1.50 g

Mass of water = 100.0 g

Initial temperature = 22.00°C

Final temperature = 33.10°C

The reaction is,

\(Ba+2H_{2}O\Rightarrow Ba(OH)_{2}+H_{2}\)

We need  to calculate the heat

Using formula of heat

\(Q=ms\Delta T\)

Where, m = mass

s = specific heat

\(\Delta T\) temperature

Put the value into the formula

\(Q=(1.50+100)\times4.18\times(33.10-22.00)\)

\(Q=4709.397\ J\)

We need to calculate the amount of heat per mole

Using formula of energy per mole

\(per\ mole\ Q=\dfrac{4709.397}{moles\ of\ Ba}\)

Put the value into the formula

\(per\ mole\ Q=\dfrac{4709.397}{\dfrac{1.5}{137.32}}\)

\(per\ mole\ Q=431129.59\ J/mol\)

\(per\ mole\ Q=431.12\ kJ/mol\)

Hence, The amount of heat is 431.12 kJ/mol.

Answer:

Density of the object is 8759.494 grams/L

Explanation:

As we know density of an object is mass of the object divided by its volume

Given

Volume of the object is equal to the change in volume of water with in the cylinder when the object was immersed in water.

Hence, volume of object is equal to

\(32.9 -25 = 7.9\) mL

Mass of the object is \(69.2\) grams

Density

\(= \frac{69.2}{7.9 *10^{-3}}\\= 8759.494\) grams/L

Density of the object is 8759.494 grams/L

Answer:

See below

Explanation:

To convert from Celcius to Kelvin, you add 273.15.

To convert from Kelvin to Celcius, you subtract 273.15

109.85     383

80            353.15

49.85       323

10             283.15

-10            263.15

-30.15       243

Answer:

2CO 2NO → 2CO2 N2 : Balanced

6CO2 6H2O → C6H12O6 : Unbalanced

H2CO3 → H2O CO2 : Balanced

2Cu O2 → CuO : Unbalanced

Explanation:

1.) 2CO 2NO → 2CO2 N2

2 Carbon 2

4 Oxygen 4

2 Nitrogen 2

The amount of atoms of each element on each side of the equation are the same therefore the equation is balanced.

2.) 6CO2 6H2O → C6H12O6 O2

6 Carbon 6

12 Oxygen 8

12 Hydrogen 12

The amount of oxygen atoms is different on both sides of the equation therefore the equation is not balanced.

3.) H2CO3 → H2O CO2

2 Hydrogen 2

1 Carbon 1

3 Oxygen 3

The amount of atoms of each element is the same on both sides of the equation therefore the equation is balanced.

2Cu O2 → CuO.

2 Cu 2

2 O 1

The amount of oxygen atoms is different on both sides of the equation therefore the equation is not balanced.

The scientist's measurement of 14.5 ml suggests that they were measuring volume. In scientific research and laboratory work, measurements are often recorded to accurately quantify various properties of substances or systems under investigation.

The unit "ml" commonly represents milliliters, which is a unit of volume in the metric system.

Volume is a fundamental physical quantity that describes the amount of space occupied by an object or substance. It is commonly measured using tools such as graduated cylinders, pipettes, or syringes. By measuring the volume, scientists can gain insights into the amount of liquid or the capacity of a container.

In the context of the lab notebook, the notation of 14.5 ml indicates a specific volume value that was obtained through experimental or observational procedures. This information is crucial for conducting further analyses, calculations, or comparisons with other data points. By recording the volume measurement, the scientist can precisely document and communicate their findings to colleagues or refer back to it for future reference.

It is worth noting that without additional information from the lab notebook, such as experimental setup or context, we cannot definitively determine the exact nature of the experiment or substance being measured. However, based solely on the measurement unit of milliliters (ml), it strongly suggests that the scientist was measuring volume.

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it is c because canivores eat only meat while herbivores eat only plants so it is most likely a herbivore because it knows flavours that are good for it

A carnivore is more likely to have taste buds for umami flavors so it can taste the flavors of meat, while a herbivore is less likely because plants do not generally have umami flavors. Hence, option B is correct.

One of the five fundamental flavors is umami. It has been characterized as savory and is present in cooked meats and broths. Glutamates and nucleotides, which are plentiful in meat broths and fermented foods, trigger the taste receptors that allow us to detect umami.

Meats, shellfish, fish (including fish sauce and preserved fish like maldive fish, Katsuobushi, sardines, and anchovies), tomatoes, mushrooms, hydrolyzed vegetable protein, meat extract, yeast extract, and cheeses are examples of foods with a strong umami flavor.

Carnivores are eating meat while herbivores are plant eaters. Hence, slight chance for herbivores to taste the umami flavor. Therefore, option B is correct.

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Answer:

gold has 79 protons

Explanation:

i looked it up lol

Answer:

I cannot see any picture

Explanation:

Please put a picture

Answer:

sure what's the question

Explanation:

The amount of aluminum that reacted is approximately 0.069 grams.

To determine the mass of aluminum that reacted, we need to use the ideal gas law and consider the partial pressure of hydrogen gas. First, we calculate the pressure of hydrogen gas by subtracting the partial pressure of water vapor from the total pressure. The pressure of hydrogen gas is 751 mmHg - 26.8 mmHg = 724.2 mmHg.

Next, we convert the pressure of hydrogen gas from mmHg to atm by dividing by 760 mmHg/atm, giving us 0.953 atm.

Using the ideal gas law equation PV = nRT, we can calculate the number of moles of hydrogen gas. The volume of hydrogen gas is given as 37.3 mL, which we convert to liters by dividing by 1000 mL/L, giving us 0.0373 L. The temperature is given as 27°C, which we convert to Kelvin by adding 273.15, giving us 300.15 K. The ideal gas constant R is 0.0821 L∙atm/(mol∙K).

Plugging the values into the ideal gas law equation, we can solve for the number of moles of hydrogen gas: (0.953 atm) * (0.0373 L) = n * (0.0821 L∙atm/(mol∙K)) * (300.15 K).

Simplifying the equation, we find that the number of moles of hydrogen gas is approximately 0.00139 moles.

Since the balanced chemical equation between aluminum and hydrochloric acid is 2Al + 6HCl → 2AlCl₃ + 3H₂, we can conclude that 2 moles of aluminum react to produce 3 moles of hydrogen gas.

Using this ratio, we can calculate the number of moles of aluminum that reacted: (0.00139 mol H₂) * (2 mol Al / 3 mol H₂) = 0.000926 moles Al.

Finally, we can convert moles of aluminum to grams using the molar mass of aluminum (26.98 g/mol): (0.000926 mol Al) * (26.98 g/mol) ≈ 0.069 g Al.

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American interest in developing a hydrogen bomb intensified after the Soviet Union successfully detonated its first atomic bomb in 1949. This event, known as the "Soviet atomic bomb project," caused great concern in the United States and led to a renewed emphasis on the development of more powerful nuclear weapons.

The hydrogen bomb, also known as a thermonuclear bomb, is much more powerful than an atomic bomb, as it utilizes the fusion of hydrogen isotopes to release a tremendous amount of energy. The United States successfully detonated its first hydrogen bomb in 1952, marking a significant milestone in the country's nuclear weapons program. The development of the hydrogen bomb ushered in a new era of nuclear weapons technology, as both the United States and the Soviet Union engaged in a race to build bigger and more destructive weapons.

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1,3,5-hexatriene contains three bonding molecular orbitals.

A conjugated hydrocarbon having a chain of six carbon atoms and three double bonds is known as 1,3,5-hexatriene.

The 1,3,5-hexatriene -system, which is made up of the overlapping p-orbitals of the carbon atoms engaged in the double bonds, must be taken into account in order to calculate the number of bonding molecular orbitals (MOs) in the compound.

A string of MOs is created when the electrons in a conjugated compound, like 1,3,5-hexatriene, are delocalized along the whole chain. There are two MOs one bonding molecular orbital and one antibonding molecular orbital for every double bond.

The compound 1,3,5-hexatriene contains three double bonds. Consequently, there will be three bonding molecular orbitals.

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Answer:

1/3

Explanation:

because i got it right

Answer:

36.2874 $

Explanation:

1 ton = 907.185 kilograms.

907.185 x 0.04 =

36.2874

-kiniwih426

According to unit conversion,cost of coal in dollars per ton if it costs $0.04 per kilogram is 80 dollars per ton.

Unit conversion is defined as a multi-step process which involves multiplication or a division operation by a numerical factor.The process of unit conversion requires selection of appropriate number of significant figures and the rounding off procedure.

It involves a conversion factor which is an expression for expressing the relationship between the two units.A conversion ratio always has value which equals to one which indicates that numerator and denominator have values which are expressed in different units.

First, we need to convert the cost per kilogram to dollars per ton. There are 2000 kilograms in a ton. So, the cost per ton is $0.04/kilogram × 2000 kilograms/ton = $80/ton.

So the answer is 80 dollars per ton.

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It will take 15 years to decay till only 5mg of Cobolt-60 is remaining.

  40 ⇒ 20 ⇒ 10 ⇒ 5

We can clearly see 3 half lifes are required to decay 40 g of Cobolt to 5 gm. We know that half-life is the time taken by a radioactive substance to reduce to its initial amount. The half-life of cobalt-60 is 5 years, As a result, the product's cobalt-60 content will gradually decline over time, with only half of the initial amount left after every five years. After 5 years, 20 mg will still be present, followed by next 5  years by 10 mg, and next 5 years by 5 mg. Cobalt-60 is thus reduced from 40 mg to 5 mg during the course of 15 years.

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Ce(IO3)3 will not precipitate from the solution.

To determine if Ce(IO3)3 will precipitate from the solution, we need to calculate the concentration of Ce3+ and IO3- ions in the solution, and then use the solubility product constant (Ksp) to determine if a precipitate will form.

First, let's calculate the number of moles of Ce(NO3)3 added to the solution:

nCe(NO3)3 = (750.0 mL) (4.00 x 10^-33 mol/L) = 3.00 x 10^-30 mol Ce(NO3)3

Next, let's calculate the number of moles of KIO3 in the solution:

nKIO3 = (300.0 mL) (2.00 x 10^-2 mol/L) = 6.00 x 10^-3 mol KIO3

Since KIO3 is a strong electrolyte, it will dissociate completely in solution, giving us the same number of moles of IO3- ions:

nIO3- = 6.00 x 10^-3 mol

Since Ce(NO3)3 is also a strong electrolyte, it will dissociate completely to give us 3 times the number of moles of Ce3+ ions:

nCe3+ = 3.00 x 10^-30 mol x 3 = 9.00 x 10^-30 mol

Now, let's calculate the concentration of Ce3+ ions:

[Ce3+] = (9.00 x 10^-30 mol) / (1050.0 mL) = 8.57 x 10^-34 M

Finally, we can calculate the ion product (IP) of Ce(IO3)3:

IP = [Ce3+] [IO3-]^3 = (8.57 x 10^-34)^1 (6.00 x 10^-3)^3 = 7.34 x 10^-41

Comparing this value to the Ksp of Ce(IO3)3 (1.9 × 10^-10), we see that IP << Ksp.

Therefore, Ce(IO3)3 will not precipitate from the solution, and the solution will remain homogeneous.

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Answer:

Mass number

Explanation:

A pure substance that cannot be broken down by chemical or physical means is called an element. Elements are fundamental building blocks of matter and are composed of atoms with a specific number of protons in their atomic nuclei.

Chemically, elements cannot be broken down into simpler substances through chemical reactions. They retain their identity and properties even when combined with other elements to form compounds.

For example, gold (Au) is an element that remains unchanged whether it is in its pure form or combined with other elements to form compounds such as gold oxide or gold chloride.

Physically, elements also cannot be broken down into smaller parts without altering their fundamental nature. They cannot be separated into simpler substances through physical processes like filtration, distillation, or evaporation.

Examples of elements include hydrogen (H), oxygen (O), carbon (C), iron (Fe), and many others. There are currently 118 known elements, each with its own distinct properties, and they form the basis of all matter in the universe.

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Molarity is the measure of how many moles has a liter of solution.

It means that it can be used as a conversion factor to find how many liters of solutions are needed.

Convert the amount of liters to milliliters:

410ml of the solutions are needed for the required amount of NaNO₃.

Explanation:

Explanation:

Given the molecular weights:

M

r

N

a

O

H

=

40

g

m

o

l

M

r

N

a

2

S

O

4

=

142

g

m

o

l

The analogy of the moles will be held constant:

n

N

a

O

H

n

N

a

2

S

O

4

=

2

1

n

N

a

O

H

n

N

a

2

S

O

4

=

2

For each one, substitute:

n

=

m

M

r

Therefore:

n

N

a

O

H

n

N

a

2

S

O

4

=

2

m

N

a

O

H

M

r

N

a

O

H

m

N

a

2

S

O

4

M

r

N

a

2

S

O

4

=

2

200

40

x

142

=

2

200

⋅

142

40

x

=

2

200

⋅

142

=

2

⋅

40

x

x

=

200

⋅

142

2

⋅

40

=

100

⋅

142

40

=

10

⋅

142

4

=

1420

4

=

=

710

2

=

355

g

r

a

m

s

(or just use a calculator

Answer:

D 2.8.6 is the electron configuration

The correct matching of the properties of the elements are;

Rubidium - catches fire as soon as it s exposed to air and burns fiercely

Lithium - hard to set alight but burns with a deep red flame

Potassium - Melts readily on heating with a Bunsen flame and catches fire easily. Burns with a mauve flame.

Sodium - Melts fairly readily with  Bunsen flame then catches fire and burns with a deep yellow flame

We know that elements are classified into groups. The groups are a family of elements that have similar chemical and physical properties. Now we have the to match the properties of the elements as shown;

Rubidium - catches fire as soon as it s exposed to air and burns fiercely

Lithium - hard to set alight but burns with a deep red flame

Potassium - Melts readily on heating with a Bunsen flame and catches fire easily. Burns with a mauve flame.

Sodium - Melts fairly readily with  Bunsen flame then catches fire and burns with a deep yellow flame

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Answer:

He only purchases strawberries grown locally.

Explanation:

Based on the information we are given, this is the only reasonable answer.

Answer :He only purchases strawberries grown locally.

Explanation: The correct answer is He only purchases strawberries grown locally. Many consumers have preferences as to where their food comes from. Some want to avoid products that have been shipped extensively and prefer to purchase locally produced goods and services. Country of Origin labeling does not indicate whether a product is organic, its nutritional content, or whether it is fresh, and a consumer would need to determine this information another way.

Answer: who is post malone

Explanation:

Answer:

Select the letter of the correct answer.

A vertical skateboard ramp is 12.5 feet high. The staircase leading to the top of the ramp is 15 feet long. How far away from the bottom of the ramp is the bottom of the staircase? Round your answer to the nearest tenth of a foot.

Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selected

A8.3 feet

B8.4 feet

C8.0 feet

D8.2 feet

Explanation:

so can someone help me please i only have 15 mins left !!!!!

Explanation:

I am not sure without knowing the name of the solutions. But according to me it can be happen which are D bcz when two solutions for e.g acid and base are mixed together, it changes its colour an form salts.

Based on the information provided, a Mann-Whitney U test would be the appropriate reactant statistical test to compare the two groups.

The Mann-Whitney U test is a non-parametric test that does not rely on the assumption of normality and is suitable for comparing two independent groups with continuous or ordinal data. In this case, the data does not follow a normal distribution as evidenced by the large differences in standard deviations and variances between the two groups.

The Mann-Whitney U test is a non-parametric test that compares the medians of two independent groups without assuming normal distribution. This test is suitable when the data is not normally distributed and the variances between the two groups are significantly different, as in your case.
1. Verify that the data is non-normal and has unequal variances.
2. Choose the Mann-Whitney U test as the appropriate statistical test.
3. Calculate the U statistic and compare it to the critical value.
4. Obtain the p-value and determine if there is a significant difference between the two groups based on the chosen significance level.

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The scientific term for this type of flexibility in metabolic ability is facultative anaerobe.

Facultative anaerobe means that the organism can switch between anaerobic metabolism (fermentation) and aerobic metabolism (using oxygen) depending on the availability of oxygen in its environment. Yeast is an example of a facultative anaerobe.

The organisms that form ATP by aerobic respiration in presence of oxygen and can switch to anaerobic respiration if oxygen is not present is called as facultative anaerobe organisms. And, so the organisms can grown in the presence as well as in the absence of oxygen.

According to the presence or absence of oxygen organisms can change their metabolic processes, using the more efficient cellular respiration in the presence of oxygen and less efficient cellular respiration in the absence of oxygen.

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The bonds that break in the reaction shown us the bonds between C and H in CH4 and between the two O atoms.

Chemical bond breakage is the process in which bonds holding atoms together break due to factor like heat or chemicals.

Therefore, The bonds that break in the reaction shown us the bonds between C and H in CH4 and between the two O atoms.

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The theoretical yield of C₆H₅Br = 70.336 g

Given

42.1 g of C₆H₆

71.7 g of Br2

Required

The theoretical yield

Solution

Reaction

C₆H₆ + Br₂ ⇒ C₆H₅Br + HBr

mol C₆H₆ :

= mass : MW C₆H₆

= 42.1 g : 78 g/mol

= 0.54

mol Br₂ :

= 71.7 g : 160 g/mol

= 0.448

Limiting reactant : Br₂(smaller mol)

mol C₆H₅Br based on Br₂ as a limiting reactant = 0.448

Mass C₆H₅Br :

= 0.448 x 157 g/mol

= 70.336 g