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leonid [27]
3 years ago
13

What are the common uses of acetone and formalin?

Chemistry
2 answers:
telo118 [61]3 years ago
3 0
Acetone It is good for plastics and some synthetic fibers. It is used for cleaning tools. it is used for thinning polyester resin.Formalin is used as an antiseptic, and preservative. It is also used to treat the fungal diseases of fish. Formaldehyde solutions can be used as disinfectants and germicides, as they quickly kill bacteria and other potentially harmful microorganisms
lorasvet [3.4K]3 years ago
3 0

Answer:

cetone is mainly used in the manufacturing of many different chemicals and also used as solvent in items such as remover for nail polish, paint, lacquers and finishes, cleaners, etc.

Formaline is used as antibacterial, preservative and disinfectant. It's the pungent gas formaldehyde's 37% aqueous solution and also has the formula HCHO.

Explanation:

Acetone is widely used to wash nail however formalin, often identified as formaldehyde, is often used in embalming.

Acetone is mainly used in the manufacturing of many different chemicals and also used as solvent in items such as remover for nail polish, paint, lacquers and finishes, cleaners, etc.

Formaline is used as antibacterial, preservative and disinfectant. It's the pungent gas formaldehyde's 37% aqueous solution and also has the formula HCHO.

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How many moles of ammonia gas occupy 50 mL at at 700 kPa and 30.0 0C?
nalin [4]

For the conversions

I will start with pressure
1atm=101.3kPa
x =700kPa
x=700kPa/101.3kPa
x=6.91atm

Temperature
273K+30.00C
303K

Volume
1L=1000ml
x =50ml
x=0.05L

PV=nRT
6.91*0.05=n*0.08206*303
0.3455=24.86418n
0.3455/24.86418=n
0.0138=n
number of moles = 0.0138moles

Note: 0.08206 is the gas constant in this case
6 0
2 years ago
The walls in your home have 25mm of expanded polystyrene (R-value 3.96) and 25mm of rigid urethane foam (R-value 7.50). What is
Finger [1]

Answer:

3.6 per inch

EPS insulation features an average r-value of 3.6 per inch.

In addition to providing energy efficiency, EPS without film facers has a perm rating of up to 5.0.

Explanation:

hope this helps

7 0
3 years ago
Sea water contains roughly 158.0g of Nacl per liter. What is the molarity of sodium chloride in sea water?
IrinaK [193]
Molar mass NaCl = 58.5 g/mol

C = 158.0 g/L

Molarity =  C / molar mass

M = 158.0 / 58.5

M = 2.7000 M

hope this helps!
6 0
3 years ago
How does cold water affect the speed of dissolving?
sineoko [7]

Answer:

Anything that can be done to increase the frequency of those collisions and/or to give those collisions more energy will increase the rate of dissolving.

Explanation:

depended on the temperature

4 0
2 years ago
A sample of pure lithium chloride contains 16% lithium by mass. What is the % lithium by mass in a sample of pure lithium carbon
Anna35 [415]

Answer:

Percentage lithium by mass in Lithium carbonate sample = 19.0%

Explanation:

Atomic mass of lithium = 7.0 g; atomic mass of Chlorine = 35.5 g; atomic mass of carbon = 12.0 g; atomic mass of oxygen = 16.0 g

Molar mass of lithium chloride, LiCl = 7 + 35.5 = 42.5 g

Percentage by mass of lithium in LiCl = (7/42.5) * 100% = 16.4 % aproximately 16%

Molar mass of lithium carbonate, Li₂CO₃ = 7 * 2 + 12 + 16 * 3 =74.0 g

Percentage by mass of lithium in Li₂CO₃ = (14/74) * 100% = 18.9 % approximately 19%

Mass of Lithium carbonate sample = 2 * 42.5 = 85.0 g

mass of lithium in 85.0 g Li₂CO₃ = 19% * 85.0 g = 16.15 g

Percentage by mass of lithium in 85.0 g Li₂CO₃ = (16.15/85.0) * 100 % = 19.0%

Percentage lithium by mass in Lithium carbonate sample = 19.0%

3 0
3 years ago
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