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Cerrena [4.2K]
3 years ago
9

Calculate the mass in grams of each sample. 4.88x10^20 H2O2 molecules

Chemistry
1 answer:
AleksAgata [21]3 years ago
5 0

4.88x10^20 H2O2 molecules

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I think because its the only one to be liquid  at  normal temperatures.
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What does the law of reflection state?
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A student observes that a popcorn kernel has a hard coat. He places the kernel in a moist paper towel and observes it for severa
Ierofanga [76]

Answer: Water inside the seed coat creating a pushing force, breaking the seed coat.

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3 years ago
How many moles of chlorine gas at 120. °C<br> and 33.3 atm would occupy a vessel of 11.5<br> L?
Sever21 [200]

Answer:

11.9 moles Cl₂

Explanation:

To find the number of moles, you need to use the Ideal Gas Law. The equation looks like this:

PV = nRT

In this equation,

-----> P = pressure (atm)

-----> V = volume (L)

-----> n = moles

-----> R = constant (0.0821 L*atm/mol*K)

-----> T = temperature (K)

Before you can plug the given values into the equation, you first need to convert Celsius to Kelvin.

P = 33.3 atm                         R = 0.0821 L*atm/mol*K

V = 11.5 L                              T = 120. °C + 273.15 = 393.15 K

n = ? moles

PV = nRT

(33.3 atm)(11.5 L) = n(0.0821 L*atm/mol*K)(393.15 K)

382.95 = n(0.0821 L*atm/mol*K)(393.15 K)

382.95 = (32.2776)n

11.9 = n

8 0
2 years ago
Help help chem question
Sonbull [250]

Answer:

I think it is E or C

Explanation:

If you multiply E out the result is 530,000,000 which is higher than the rest. If not that than I think it is C, one of the two.

6 0
3 years ago
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