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dezoksy [38]
1 year ago
8

3. A lab technician is preparing urea broth. It should be sterilized by filtration, he autoclaves it instead, just like he does

for any other media. The high temperature of the autoclave causes the urea to break down. What color is the sterile urea broth when it comes out of the autoclave? but rstroedave tocave.
Chemistry
1 answer:
Andreas93 [3]1 year ago
5 0

<u>Urea get decomposed during autoclaving, because it is volatile. It is filter </u><u>sterilized </u><u>and added aseptically to your </u><u>autoclave media.</u>

Can urea be autoclaved?

  • Urea get decomposed during autoclaving, because it is volatile.
  • It is filter sterilized and added aseptically to your autoclave media.

What is autoclave sterilization?

  • In medical and laboratory settings, an autoclave is used to sterilise waste and lab supplies.
  • Heat is used in the autoclave sterilisation process to eliminate bacteria and spores. Pressurized steam provides the heat.

What is filter sterilization?

  • By using filtering, it is possible to exclude organisms based on their size. There are many different kinds of filtration methods, but membrane filtration is utilised to sterilise a system.
  • Contaminants that are larger than the pore size are captured by membrane filtration on the membrane's surface.

Learn more about autoclave media.

brainly.com/question/6211370

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At standard ambient temperature and pressure (SATP), a gas has density of 1.5328g/L. What is the molar mass of the gas?
ahrayia [7]

The standard ambient temperature and pressure are

Temperature =298 K

Pressure = 1atm

The density of gas is 1.5328 g/L

density = mass of gas per unit volume

the ideal gas equation is

PV = nRT

P = pressure = 1 atm

V = volume

n = moles

R= gas constant = 0.0821 Latm/mol K

T = 298 K

moles = mass / molar mass

so we can write

n/V = density / molar mass

Putting values

Pressure=\frac{nRT}{V}=\frac{massXRT}{VXmolarmass}

Pressure=\frac{densityXRT}{molarmass}

molarmass=\frac{densityXRT}{Pressure}=\frac{1.5328X0.0821X298}{1}=37.50

Thus molar mass of gas is 37.50g/mol

6 0
3 years ago
I still need a bit of help.
Ostrovityanka [42]
H. The atom would no longer be aluminum
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3 years ago
Write the balanced chemical equation between H2SO4H2SO4 and KOHKOH in aqueous solution. This is called a neutralization reaction
const2013 [10]

Answer:

0.185M sulfuric acid

Explanation:

Based on the reaction:

H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O

<em>1 mole of sulfuric acid reacts with 2 moles of KOH</em>

Initial moles of H₂SO₄ and KOH are:

H₂SO₄: 0.750L ₓ (0.470mol / L) = <em>0.3525 moles of H₂SO₄</em>

KOH: 0.700L ₓ (0.240mol / L) = <em>0.168 moles of KOH</em>

The moles of sulfuric acis that react with KOH are:

0.168mol KOH ₓ (1 mole H₂SO₄ / 2 moles KOH) = 0.0840 moles of sulfuric acid.

Thus, moles that remain are:

0.3525moles - 0.0840 moles = <em>0.2685 moles of sulfuric acid remains</em>

As total volume is 0.700L + 0.750L = 1.450L, concentration is:

0.2685mol / 1.450L = <em>0.185M sulfuric acid</em>

8 0
2 years ago
Which of these is correct please help
mario62 [17]

Answer:

NH4+

Explanation:

NH4+ is the acid and NH3 is the base, so NH4+ is the stronger acid.

5 0
3 years ago
If a match were placed in the cone close to the barrel of the gas burner will it ignite
Pani-rosa [81]
I think it would seeing as you typicaly have to use a match to light a gas burner
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