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garri49 [273]
3 years ago
9

Determine the new pressure of a sample of hydrogen gas if the volume and moles are constant, the initial pressure is

Chemistry
1 answer:
masha68 [24]3 years ago
4 0

Answer:

6.3 atm

Explanation:

P2=T2P1/T1

Change C to K

We can check this by knowing that P and T at constant V have a proportional relationship; Hence, this is correct.

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How much time does it take for a truck to slow down if its acceleration is -15m/s2 and the change in velocity is -30m/s
damaskus [11]

Answer:

2s

Explanation:

Given parameters:

Acceleration of the truck = 15m/s²

change in Velocity  = 30m/s

Unknown:

Time taken for the body to slow down = ?

Solution:

Acceleration is the rate of change of velocity ;

  Acceleration  = \frac{change in velocity}{time}

    time  = \frac{change in velocity }{acceleration}  

Now insert the parameters and solve;

   time  = \frac{30}{15}  = 2s

5 0
3 years ago
Ammonia and gaseous hydrogen chloride combine to form ammonium chloride. NH3+HCL->NH4CL
Hatshy [7]
The balanced chemical equation would be as follows:

<span>NH3+HCL->NH4CL

For this, we assume these gases are ideal gases so we can use the equation PV=nRT. We first calculate the number of moles of each reactants. We do as follows:

</span>PV=nRT
1.02 (4.21) = n (0.08206)(27+273.15)
n = 0.17 mol NH3 -------><span>consumed completely and therefore the limiting reactant</span>

PV=nRT
0.998 (5.35 L) = n (0.08206)(26+273.15) 
n = 0.22 mol HCl

<span>what mass of NH4Cl(s) will be produced?
0.17 mol NH3 (1 mol NH4Cl / 1 mol NH3 ) = 0.17 mol NH3

which gas is the limiting reactant?
 NH3 gas

which gas is present in excess?
HCl gas</span>
4 0
3 years ago
10. What is the function of mitochondria?<br>​
alex41 [277]

Mitochondria is the site of ATP synthesis in eukaryotic cell during aerobic respiration. It regulates the biochemical processes of the cell and helps in generation of co enzymes as sulphur and iron.

Explanation:

Mitochondria is a cell membrane bound organelles present in cytoplasm of eukaryotic cells.

The major roles of mitochondria in eukaryotic cell is to synthesize ATP by cellular respiration. It also regulates the metabolism or biochemical processes of the cell.

Mitochondria also aids in generating the iron and sulphur which acts as a coenzyme in several biochemical reactions.

The electron transport chain takes place in inner mitochondrial membrane.

There are 2 aerobic phases of cellular respiration those are Kreb's cycle and electron transport chain. The machinery for Kreb's Cycle is in matrix. The ETC is present as embedded in the inner membrane of matrix.

The cellular compartment of mitochondria performs following functions:

The space in intermembrane has electron transport chain and holds ATP synthase (enzyme required for

The cristae is a finger like projection which increases surface area for increase ATP synthesis.

In matrix of the mitochondria the Electron transport takes place.

In Kreb's cycle mitochondria aids in production of NADH and GTP. Also, synthesis of phospholipid takes place in mitochondria.

5 0
4 years ago
How many carbon atoms will be in the longest chain of 2,2,4-trimethylpentane
FrozenT [24]

The carbon atoms that will be in the longest chain of 2, 2, 4 – trimethyl pentane is 5. There are 5 carbons in the longest chain that forms a cross.

<span>Hope this helps you with your question. Don’t hesitate to ask here in Brainly.</span>

6 0
3 years ago
Why does a bouncing ball rise to a lower height with each bounce
patriot [66]
Gravity is one major part of that thing because gravity wants to pull down on things. Another part of it is the kinetic/potential energy because with each bounce it goes lower the less kinetic energy it has.
8 0
3 years ago
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