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3 years ago

What attracts heat more? black or aluminum foil?

Chemistry

2 answers:

Inessa05 [86]3 years ago

8 0

Answer:

"ALUMINUM FOIL" will conduct heat much more effectively than black construction paper.

Svetach [21]3 years ago

6 0

Answer:

$\pink{\mid{\fbox{\tt{What attracts heat more?}}\mid}}$

Black – the color that absorbs all visible wavelengths of light – attracts the most heat, followed by violet, indigo, blue, green, yellow, orange and red, in descending order.

$\pink{\mid{\fbox{\tt{ black or aluminum foil? }}\mid}}$

Black Foil, BlackWrap, Lindcraft Foil, Cinefoil and Shadowfoils are all names for black aluminum foil that's primarily used to block out light and is attached to light fixtures and or their barn doors. Used in any situation where extreme heat might otherwise burn flags or cutters.

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S+O_2-->SO_2

Its balanced already

1 mol SO_2 require 1 mole sulphur
35.7moles require 35.7mol sulphur

Mass of S

35.7(32)
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3 years ago

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Explanation:

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3 years ago

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barxatty [35]

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3 years ago

A solution made by dissolving 33 mg of insulin in 6.5 mL of water has an osmotic pressure of 15.5 mmHg at 25°C. Calculate the mo

Liula [17]

Answer: The molar mass of the insulin is 6087.2 g/mol

Explanation:

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

$\pi=iMRT$

Or,

$\pi=i\times \frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}\times RT$

where,

$\pi$ = osmotic pressure of the solution = 15.5 mmHg

i = Van't hoff factor = 1 (for non-electrolytes)

Mass of solute (insulin) = 33 mg = 0.033 g (Conversion factor: 1 g = 1000 mg)

Volume of solution = 6.5 mL

R = Gas constant = $62.364\text{ L.mmHg }mol^{-1}K^{-1}$

T = temperature of the solution = $25^oC=[273+25]=298K$

Putting values in above equation, we get:

$15.5mmHg=1\times \frac{0.033\times 1000}{\text{Molar mass of insulin}\times 6.5}\times 62.364\text{ L.mmHg }mol^{-1}K^{-1}\times 298K\\\\\text{molar mass of insulin}=\frac{1\times 0.033\times 1000\times 62.364\times 298}{15.5\times 6.5}=6087.2g/mol$

Hence, the molar mass of the insulin is 6087.2 g/mol

8 0

3 years ago

What attracts heat more? black or aluminum foil?​

What attracts heat more? black or aluminum foil?