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o-na [289]
3 years ago
11

Peppers have a white section that hold all of their seeds. There is a kind of chemical in the white region that triggers the "sp

icy" sensation in your taste buds. What is this chemical called, and how does milk reverse the effects?
Chemistry
1 answer:
notka56 [123]3 years ago
4 0
Capsaicin is the chemical in the peppers, and then milk reverses it by using casein (A fat loving compound) to bond to the capsaicin and wash it away. Hope this helps!
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What is the pressure, in atmospheres, of 6.0 grams of H2 gas if it has a volume of 73 liters when the temperature is 25 C?
Archy [21]
PV = nRT   (where P = pressure; V = volume; n = number of moles; R = gas constant; T = Temperature)

Moles of H₂ = mass of H₂ ÷ molar mass of H₂
                    =  6.0 g ÷ 2 g/mol
                    =  3.0 mol

To get the answer in atmospheres, let's convert C to K 
      25 °C ≡ 298 K

Now, based on the formula above
     P = (nRT) ÷ V

    P = (3.0 mol × (0.082 L · atm/mol · K) × 298 K) ÷  73 L
       ≈  1 .004 atm
5 0
3 years ago
A sample of Freon-12 (CF2Cl2) occupies 2.842 x 101 L at 331 K and 2.525 x 102 kPa. Find its volume (in L) at standard temperatur
Angelina_Jolie [31]
We have to first find the number of moles of Freon-12 in the sample using the ideal gas law equation
PV = nRT
n = \frac{PV}{RT}
since the number of moles at both conditions given and at stp we can write the following formula 
\frac{P1V1}{RT1} =  \frac{P2V2}{RT2}
where parameters for the given conditions are on the left side and parameters for STP conditions are on the right side of the equation
where P1 - pressure - 252.5 kPa
V1 - volume - 28.42 x 10⁻³ m³ 
R - universal gas constant 
T1 - 331 K

STP conditions 
P2 - 101 325 Pa
T2 - 273 K

substituting these values in the equation 

\frac{252 500Pa*28.42*10 ^{-3}m^{3}  }{R*331K} =  \frac{101325 Pa*V}{R*273 K}

V = 58.41 L
Volume at STP is 58.41 L
3 0
2 years ago
A student wants to make a 5.00%solution of rubidium chloride using 0.377g of the substance. what mass of water will be needed to
Alenkasestr [34]
 The mass of water that will  be needed to make the solution  is calculated as below

%  solution  =  mass of the solute/mass of the solvent(water) x100

%  solution = 5% = 5/100
mass of the solute =0.377 g
mass of the  solvent = ?

let the mass  of the solvent be  represented by Y

= 5/100 =0.377/y

by cross multiplication

5y=  37.7
divide both side by 5

y =7.54  grams
7 0
3 years ago
Identify the number with the correct number of significant figures for each step of the calculation and for the final answer. No
lara [203]

Answer: The answer is 167

Explanation: This is because that was right on edg. so yea heart this tho plsss

7 0
3 years ago
Read 2 more answers
In which situation is no work considered to be done by a force?
Masja [62]

If the angle is either 0 or 180, that means that there is either negative or positive work, so A and D are not correct.

If the angle is 45, then there is still some work involved.

The only option where there is no work done by a force is B. when the angle is between the force and displacement is 90. 

7 0
3 years ago
Read 2 more answers
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