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2 years ago

6. How many grams are present in 13.2 moles of O₂?

Chemistry

1 answer:

irina [24]2 years ago

5 0

Answer:

422.3868 Grams

Explanation:

13.2 (MOLES) * 31.999 (Dioxygen's Molar Mass) = 422.3868 (Grams Present)

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Which term describes the amount of order in a system

Ivahew [28]

Answer:

entropy

Explanation:

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3 years ago

The data showed that recently the alligator population has decreased. How could the decrease in the alligator

Marina CMI [18]

Answer:

Since the alligator population decreased, this means there are less predators for the gar. Less predators for the gar mean the gar population will increase. More gar also means more competition for the diving duck in terms of animals that eat crabs, and thus the diving duck population will also decrease.

Explanation:

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3 years ago

An element has an atomic number of 27. How many protons and electrons are in a neutral atom of the element

Sergeu [11.5K]

Answer:

27 and 32

Explanation:

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3 years ago

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2.15 g of an unknown gas at 71 degrees C and 1.10 atm is stored in a 1.75 L flask. Solve for the density and the molar mass of t

Vikki [24]

Explanation:

The given data is as follows.

mass = 2.15 g, T = $71^{o}C$ = (71 + 273) K = 344 K

P = 1.10 atm, V = 1.75 L

Now, according to the ideal gas equation PV = nRT

and, n = $\frac{mass}{\text{molar mass}}$

Hence, calculate the molar mass of unknown gas as follows.

PV = $\frac{mass}{\text{molar mass}} \times RT$

$1.10 atm \times 1.75 = \frac{2.15 g}{\text{molar mass}} \times 0.0821 \times 344 K$

Molar mass = $\frac{60.721}{1.925}$ g

= 31.54 g

As, density is the amount of mass present in liter of volume.

Mathematically, Density = $\frac{mass}{volume}$

= $\frac{2.15 g}{1.75 L}$

= 1.22 g/L

Thus, we can conclude that mass of unknown gas is 31.54 g and its density is 1.22 g/L.

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3 years ago

Read 2 more answers

Mrs. Vikram's science class notices that a high

denis23 [38]

Storm clouds being formed will most likely occur in this scenario.

<h3>What are Storm clouds?</h3>

These are formed during the process of convection in which heat and moisture is transported upward into the atmosphere.

We were told that the weather is warm and cold air will enter the region which means that it will replace the heat and moisture as they move upwards thereby resulting in the formation of storm clouds.

Read more about Storm clouds here brainly.com/question/8240176

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2 years ago