All categories

3 years ago

Why pH level test is important in lotion testing? Why it matter? Explain your answer

Chemistry

1 answer:

IceJOKER [234]3 years ago

3 0

Answer: The ph value of the skin plays an essential role in protecting the skin.

Explanation:

An acidic protective layer is crucial for the functioning of the skin's protective barrier. Neutralizes aggressive alkaline substances (eg, aggressive surfactants), inhibits bacterial growth and restores and maintains an optimal acidic environment in which natural flora can develop.

If there is a rise in the ph value of the skin, the nature of the skin may become disturbed. Essential epidermal lipids can no longer be synthesized, so in this case, the skin loses and dries. By breaking its protective function, the skin can become dry, sensitive, or extremely

You might be interested in

A simple reaction: 2A+B=C. IF THE CONCENTRATION OF B IS INCREASED 4 TIMES,HOW MANY TIMES SHOULD THE CONCENTRATION OF A DECREASE

hichkok12 [17]

Answer:

is the length of floor plan with an area of 8q and how to use the pool to use the pool to use the pool to use the pool to to use the the pool to use to grind a grind and with a diameter of 3m and a ads a see if this is a is possible required for a quiz night or a going up with a diameter question to for Filipinos nga ba eh nga ba eh nga maganda sa at ang the night when we get the chance to watch it ⌚ and it's just the first time six 6⃣ and we have all been the best proud of of the music that music has ever made it a good

8 0

3 years ago

an ideal gas is at a pressure 1.00 x 10^5 N/m^2 and occupies a volume 11.00 m^3. If the gass is compressed to a volume of 1.00 m

bogdanovich [222]

Answer:

$P_2=1.1x10^6Pa$

Explanation:

Hello.

In this case, we can solve this problem by applying the Boyle's law which allows us to understand the pressure-volume behavior as a directly proportional relationship:

$P_1V_1=P_2V_2$

In such away, knowing the both the initial pressure and volume and the final volume, we can compute the final pressure as shown below:

$P_2=\frac{P_1V_1}{V_2}$

Consider that the given initial pressure is also equal to Pa:

$P_2=\frac{1.00x10^5Pa*11.00m^3}{1.00m^3}\\ \\P_2=1.1x10^6Pa$

Which stands for a pressure increase when volume decreases.

Regards.

4 0

3 years ago

2. in Journey to the Center of the Earth, by Jules Verne, an adventurer travels through the

omeli [17]

Crust, Mantel, Outercore, Innercore

4 0

3 years ago

Cu + 2AgNO3 → Cu(NO3)2 + 2Ag

Eva8 [605]

Answer:

$m_{Ag}=135.8gAg$

$Y=88.4\%$

Explanation:

Hello there!

In this case, according to the described chemical reaction, it is possible to compute the theoretical mass of silver as mass via the 1:2 mole ratio of copper to silver and their atomic mass in the periodic table, in order to perform the following stoichiometric setup:

$m_{Ag}=40.gCu*\frac{1molCu}{63.55gCu}*\frac{2molAg}{1molCu}*\frac{107.87gAg}{1molAg}\\\\ m_{Ag}=135.8gAg$

Next, given the actual yield of 120 g, we compute the percent yield via:

$Y=\frac{120g}{135.8g}*100\%\\\\Y=88.4\%$

Regards!

4 0

3 years ago

How many grams of nitrogen was combined hydrogen to form 6moles of Ammonia

Elan Coil [88]

How many grams of nitrogen was combined hydrogen to form 6moles of Ammonia

5 0

3 years ago