How many grams of aluminum are necessary to produce 11 L of hydrogen gas at STP??
PLEASE HELP

Answers

Answer 1
9.0 grams will produce 11 L of hydrogen
Answer 2

Answer:

8.8

Explanation:

You can view more details on each measurement unit: molecular weight of Aluminum or grams The molecular formula for Aluminum is Al. The SI base unit for the amount of substance is the mole. 1 mole is equal to 1 mole of Aluminum.


Related Questions

Balance the following chemical equation by providing the correct coefficients:
[ ]CO+[ ]H2 -> [ ]H2O + [ ]CH4
Carbon Monoxide + Hydrogen gas yields water + methane (CH4)

Answers

Answer:

CO + 3H2 -> H20 + CH4 :)) !!

__M+__Q2----->___MQ3

Answers

Answer: 2M + 3Q2 -----> 2MQ3

Explanation:

2 Ms either side, and 6 Qs either side

Soelekekfnekeoekrdkkdekekw

Can someone answer this pls

Answers

Answer:12

Explanation:

which deflects winds to the right or left

a) jet streams
b) land breeze
c) sea breeze
d) coriolis effect

Answers

Answer: right and what are the answers for?

Explanation:

Mg + HCl ➞ MgCl2 + H2

Magnesium reacts with hydrochloric acid. If 7.80 mol HCl reacts, how many grams of MgCl2 will be produced?

Answers

Answer: 371 g MgCl2

Explanation:

Describe how to
separate a mixture of
fillings, sulphur and salt.

Answers

Answer:

firstly for separating fillings we should use

magnet for separating it, and we left with sulphur and salt so for this we will use water

when we add water then salt get dissolve in it and we can easily take out sulphur again by evaporation we will obtain salt

hope it helps

Which of the following has the LONGEST wavelength
A.) a lion growling at a frequency of 85 Hz
B.) a bass guitar playing a note at a frequency of 150 Hz
C.) a man speaking at a frequency of 520 Hz
D.) an opera singer singing at a frequency of 2100 Hz

Answers

Answer:

D.) an opera singer singing at a frequency of 2100 Hz

Explanation:

Wavelength is inversely proportional to frequency.

The one having the LONGEST wavelength is  a lion growling at a frequency of 85 Hz and the correct option is option A.

What is Electromagnetic scale?

The electromagnetic spectrum is a range of frequencies corresponding to wavelengths which are a few kilometres to a fraction of the size of an atomic nucleus in the spectrum of electromagnetic waves.

As a wave, light has several basic properties that describe it. One is frequency, which counts the number of waves that pass by a given point in one second.

Another is wavelength, the distance from the peak of one wave to the peak of the next. These properties are closely and inversely related: The larger the frequency, the smaller the wavelength — and vice versa.

A third is energy, which is similar to frequency in that the higher the frequency of the light wave, the more energy it carries.

Therefore, The one having the LONGEST wavelength is  a lion growling at a frequency of 85 Hz and the correct option is option A.

Learn more about Electromagnetic spectrum, here:

https://brainly.com/question/23727978

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A container is filled with helium gas. It has a volume of 2.25 liters and contains 9.00 moles of helium. How many moles of helium could be held in a 1.85 liter container at the same temperature and pressure. *

Answers

Hannshhsbsbsjhsbs dndjddjdhbdbdndjdkdos

Calculate the molar mass

Answers

Answer:

52

Explanation:

the element chlorine is a gas. it's formula is cl2 . how many different masses of the cl2 molecule would you expect to find in a sample of chlorine gas ? explain your answer

Answers

Answer:

the answer is 3.33⋅1023 molecules of Cl2. Note that 6.022⋅1023 is also known as Avogadro's number, and it can be referred to as the number of molecules in one mole of that substance. Also, I calculated 70.9 because 35.45 g/mol (the mass of one Chlorine atom) times 2 is 70.9 g/mol (Cl2 has two Chlorine atoms).

Explanation:

How do you account for the formation of ethane during chlorination of methane​

Answers

Answer:

ethane is formed due to side reaction

Explanation:

During chlorination of methane, ethane is formed due to side reaction in termination step by the combination of two methyl free radicals.

Answer:

During chlorination of methane, ethane is formed due to side reaction in termination step by the combination of two methyl free radicals.

Why is it important to predict consequences when decision-making?

A.Considering the consequences can help you pick the option with the best outcome.
B.Predicting consequences isn’t a step in the decision-making process.
C.There usually aren’t any consequences when making decisions.
D.Consequences won’t help you make a decision.

Answers

the correct answer is b

How does the structure of Ethane (C2H6) and Propane(C3H8) differ? Are they members of a Homologous series?

Answers

Answer:

Ethane & propane are members of same homologous series : alkane which is indicated with Cn H2n+2

Explanation:

pb(No3)2(aq) +2KCI(aq)---PbCl2(s)+KNO2(aq). how many grams of PbCl2 solution will react with a 0.46 L of a 0.101m KCI solution​

Answers

Answer:

6.3986g

Explanation:

The balanced chemical equation of this reaction is as follows:

Pb(NO3)2(aq) + 2KCl (aq) → PbCl2(s) + 2KNO3(aq)

In this equation, 2 moles of KCl solution will produce 1 mole of PbCl2.

To calculate the number of moles of PbCl2 produced, we use the formula:

Molarity = number of moles (n) ÷ volume (V)

0.101 = n/0.46

n = 0.046mol of KCl

If 2 moles of KCl solution will produce 1 mole of PbCl2

Then, 0.046mol of KCl will be react to produce (0.046 × 1/2) of PbCl2

0.046 × 1/2 = 0.023mol of PbCl2

To find the mass of PbCl2 using mole = mass ÷ molar mass

Molar mass of PbCl2 = 207.2 + 35.5(2)

= 207.2 + 71

= 278.2g/mol

0.023 = mass/278.2

mass = 6.3986g

Answer:

Can you help me with other question please

Which of the following is a correct statement for gases ? All of these.
Gases have a definite shape and volume.
Confined gas exerts a uniform pressure on the walls of its container in all directions.
The volume of gas is equal to the volume of the container holding the gas.

Answers

Answer:

B

Explanation:

What happens to iron in a bolt as the bolt rusts?

Answers

Iron gets converted from Fe2+ to Fe3+ during rusting. Details about rusting can be found below.

What is rusting?

Rusting is the deteriorated state of iron or steel as a result of moisture and oxidation.

Rusting is characterized by a reddish-brown color on the surface of the iron.

Rusting is caused by oxidation of iron II (Fe2+) ion into iron III (Fe3+) ion.

Learn more about iron rusting at: https://brainly.com/question/18376414

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mes.
monthly
(Chp.3)
(40) The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find
the two numbers.

Answers

Question:-

The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find the two numbers.

Solution:-

Let the larger number be x

And, the square of the smaller number be 8x

ATQ ,

x² − 8x = 180

⇒ x² − 8x − 180 = 0

⇒ x² − (18 − 10)x − 180 = 0

⇒ x² − 18x + 10x − 180 = 0

⇒ x (x − 18) + 10(x − 18) = 0

⇒ (x − 18) (x + 10) = 0

⇒ x − 18 = 0, x + 10 = 0

⇒ x = 18, x = −10

⇒ x = −10, 18

[tex] \therefore [/tex] Either, x = −10 and x = 18

x = 18 (Positive value)

Now, the square of the smaller number = 8x = 8 × 18 = 144

So, the square of the smaller number = [tex]\sqrt{144} [/tex] = 12

The two numbers are 18 and 12. [Answer]

The brightness of a light correlates to its amplitude. The higher the amplitude, the brighter the light will appear. Which of the waves below depicts the brightest light?

Answers

Answer:

Wave X is the brightest light

Explanation:

The amplitude of a wave refers to the maximum upward or downward displacement of a wave from its rest position. This implies that the amplitude is the measured distance from rest position to crest position. Similarly, the amplitude is also measured from the rest position to the trough position.

The crest of a wave is the point on a travelling wave that has the maximum amount of positive or upward displacement from the rest position. The trough of a wave is the point on the travelling wave that has the maximum amount of negative or downward displacement from the rest position.

From the wave diagrams shown in the attachment below, the wave that shows the highest amount of upward or downward displacement from the rest position (x - axis) is wave X. Since the brightness of a light wave increases with increaese in amplitude, wave X will have the highest amount of brightness.

HELP PLS !!!!! NO LINKS

Answers

Answer:

Option aWeathering

Explanation:

Weathering is a term which describes the general process by which rocks are broken down at the Earth's surface into such things as sediments, clays, soils and substances that are dissolved in water.

As weathered products are carried away, fresh rocks are exposed to further weathering.

Answer:

melting

Explanation:

I think think helpful it is or not

How many rings (energy levels) will an atom with 12 electrons have?

Answers

Answer:

3

Explanation:

from the KLMN shell

K has the maximum of 2 electrons

M has the maximum of 8

M has the maximum of 18

so 12 electrons fell on M shell which is the third one

that's all....have fun

2 Na + Cl2 --> 2 NaCl
What is the mole ratio of sodium to sodium chloride?

Answers

Answer: The mole ratio of sodium to sodium chloride 2:2.

Explanation:

As the given reaction equation is as follows.

[tex]2Na + Cl_{2} \rightarrow 2NaCl[/tex]

Here, 2 moles of sodium reacts with 1 mole of [tex]Cl_{2}[/tex] and leads to the formation of 2 moles of NaCl.

This means that 2 moles of sodium gives 2 moles of NaCl on reaction with chlorine.

Hence, the ratio of moles of sodium to sodium chloride is 2:2.

Thus, we can conclude that the mole ratio of sodium to sodium chloride 2:2.

Balance the following chemical equation by providing the correct coefficients:
[ ]N2 + [ ]H2 -> [ ]NH3
Nitrogen + hydrogen produces ammonia (NH3)

Answers

Answer:

1 N2 + 3 H2 --> 2 NH3 :))) !!

PLEASE ITS A TEST !!!!!!!! HELPPP!!!!!

Answers

Gggdgrhdgdhdhgeggssvshga

what's different between fat molecules and carbohydrate and protein molecules

Answers

Answer:

ddwadadadadwd

Explanation:

When people respond to questions saying the answer is in an attached link, is it safe?

Answers

Answer:

Personally, I believe it is unsafe. When people include a link in their answer, they are breaking the Brainly code, which states that a link to an unknown website is prohibited material.

Explanation:

An ideal gas is held in a rigid container at temperature of 201∘C. Upon cooling the gas, the pressure decreases by a factor of 2.0, while the volume and the amount of gas remain constant. What must be the final temperature of the gas?

Answers

Answer:

237 K

Explanation:

Given that,

Initial temperature, T₁ = 201⁰C = 474 K

Let P be the initial pressure. Upon cooling the gas, the pressure decreases by a factor of 2.0, while the volume and the amount of gas remain constant.

Final pressure = P/2

The relation between the pressure and temperature is as follows :

[tex]\dfrac{P_1}{P_2}=\dfrac{T_1}{T_2}[/tex]

Put all the known values,

[tex]\dfrac{P}{\dfrac{P}{2}}=\dfrac{474}{T_2}\\\\2=\dfrac{474}{T_2}\\\\T_2=\dfrac{474}{2}\\\\T_2=237\ K[/tex]

So, the final temperature of the gas is equal to 237 K.

If you start with 42 g of Fe-53, how much is left after 8.51 minutes? I​

Answers

Answer:

2:38

Explanation:

Answer:

2.58 good luck with everything

what is the wavelength of a photon with an energy of 3.38 x 10-19J?

Answers

Answer:

C. 588 nm

Explanation:

Answer:

588 mm

Explanation:

Jane made this picture to represent a chemical reaction:
which of the following statements best explains the type of chemical reaction represented by Jane's picture?
A: it represents a decomposition reaction because the total mass of the product is less than the mass of the reactant
B: it represents a synthesis reaction because one combined reactant forms multiple products
C: it represents a synthesis reaction because the same atoms are present in the reactants and products
D: it represents a decomposition reaction because one reactant breaks apart and forms two products ​

Answers

Answer:

what does the photo look like

Explanation:

Pls help me I don’t know what to dooooo

Answers

Molarity = moles of solute/volume of solution in liters.

The solute here is NaCl, of which we have 46.5 g. To calculate the molarity of an NaCl solution, we need to know the number of moles of NaCl. To convert from grams to moles, we divide the mass by the molar mass of NaCl. The molar mass of NaCl is the sum of the atomic masses of Na and Cl: 23 amu + 35 amu = 58 amu. For our purposes, we can regard amu as equivalent to grams/mole.

(46.5 g)/(58 g/mol) = 0.8017 moles NaCl.

Now that we know both the number of moles of our NaCl solute and the volume of the solution, we can calculate the molarity:

(0.8017 moles NaCl)/(2.2 L) = 0.364 M.
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