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polet [3.4K]
3 years ago
9

How does the skin protect your internal organs from the outside world?

Chemistry
1 answer:
svlad2 [7]3 years ago
8 0
Your skin protects your internal organs in so many different ways. I will name a few for you! :)

Protects from damage - Your skin protects your internal organs from damage such as cuts and bruising. Our skin is not incredibly strong, but it does make a huge difference compared to our organs being bare.

Protects from bacteria - Your skin blocks most bacteria from directly having contact with your internal organs. Most people get sick because bacteria is let into contact with internal organs through our mouths, noses, etc. Our skin does not let bacteria in. 

Keeps internal organs warm - Skin is not fur, it does not provide significant resistance to cold. However, it does make a big difference compared to bare organs. It protects our internal organs from heat by sweating, as well as cold by preventing too much cold from reaching our organs.

I hope this helped. Have a great day!
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You wish to make 250. mL of 0.20 M KCl from a stock solution of 1.5 M KCl and DI water.
Nitella [24]

The question requires us to use the dilution formula M_iV_i=M_fV_f, where M_i and V_i are the stock concentration and volume respectively, then M_f and V_f are the dilute concentration and volume respectively.

a. C_s_t_o_c_k= 1.5 M KCI, C_d_i_l_u_t_e=0.20M KCl, V_d_i_l_u_t_e=250ml KCl

b.M_iV_i=M_fV_f\\\implies V_i= \frac{M_fV_f}{M_i} = \frac{0.20M \times 250ml}{1.5M} = 33.3\ ml

To prepare the solution 33.3ml of 1.5M KCl is diluted to a total final volume of 250ml.


8 0
3 years ago
100 POINTS PLS HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
dimulka [17.4K]

Answer:

i need this im struggling with my work

Explanation:

3 0
2 years ago
Read 2 more answers
If the concentration of the stock (provided) Cu(NH3)42 was 0.041 M, what concentration will the Cu2 be in beaker?
kodGreya [7K]

Answer:

[Cu^{2+}]=0.041 M

Explanation:

Hello!

In this case, since the molarity of a solution is defined in terms of the moles of the solute and the volume of solution, given that the concentration of Cu(NH₃)₄²⁺ is 0.041 M, and there is only one copper atom per Cu(NH₃)₄²⁺ ion, we can compute the concentration of Cu²⁺ as shown below:

[Cu^{2+}]=0.041\frac{molCu(NH_3)_4^{2+}}{L}*\frac{1molCu^{2+}}{1molCu(NH_3)_4^{2+}} =0.041 \frac{molCu(NH_3)_4^{2+}}{L}

[Cu^{2+}]=0.041 M

Best regards!

6 0
2 years ago
What is the osmotic pressure of a solution made by dissolving 55.0 g of glucose, C6H12O6, in enough water to form 800.0 mL of so
Stels [109]

Answer:

The osmotic pressure is 8.85 atm

Explanation:

Step : Data given

Mass of glucose = 55.0 grams

Volume of water =800.0 mL

Temperature = 10.0 °C

Step 2: Calculate moles glucose

Moles glucose = mass glucose / molar mass glucose

Moles glucose = 55.0 grams / 180.156 g/mol

Moles glucose = 0.305 moles

Step 3: Calculate osmotic pressure

π = iMRT  

⇒ with π = the osmotic pressure = TO BE DETERMINED

⇒ with i = the van't Hoff factor for glucose = 1

⇒ with M = the concentration = moles / volume = 0.305 moles / 0.800 L =0.381 M

⇒ with R = the gas constant = 0.08206 L*atm*mol¨K

⇒ with T = the temperature = 10.0 °C = 283 K

   

 π = 1* 0.381 *0.08206 * 283

 π = 8.85 atm

 

The osmotic pressure is 8.85 atm

   

   

 

   

   

3 0
3 years ago
A structure containing at least 2 different types of tissue that work together for a common purpose is
elena-14-01-66 [18.8K]
An organ.....................................................................................................

7 0
3 years ago
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