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Vilka [71]
2 years ago
8

A 687.80-g sample of a noble is held in a 15 L cylinder tank at 3800 torr and a temperature of 22 degrees C. Identify the gas.

Chemistry
1 answer:
BARSIC [14]2 years ago
8 0

Answer:.......................

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Calculate the root mean square velocity of nitrogen molecules at 25°C.
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7 0
3 years ago
Air has a mass of 1.2g and a volume of 4,555ml. What is the density
coldgirl [10]

Answer:

<h2>Density = 0.00026 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>Density(\rho) =  \frac{mass}{volume}</h3>

From the question

mass of air = 1.2 g

volume = 4,555 mL

Substitute the values into the above formula and solve for the density

That's

<h3>Density =  \frac{1.2}{4555}</h3>

= 0.0002634

We have the final answer as

<h3>Density = 0.00026 g/mL</h3>

Hope this helps you

3 0
3 years ago
How many grams of Cl are in 525g of CaCl2
Tema [17]

First we determine the moles CaCl2 present:

525g / (110.9g/mole) = 4.73 moles CaCl2 present 

Based on stoichiometry, there are 2 moles of Cl for every mole of CaCl2:<span>
(2moles Cl / 1mole CaCl2) x 4.73 moles CaCl2 = 9.47 moles Cl </span>

Get the mass:<span>
<span>9.47moles Cl x 35.45g/mole = 335.64 g Cl</span></span>

8 0
3 years ago
What are fossil fuels made from ?
Andreas93 [3]

Fossil fuels are buried geologic deposits of organic materials. They are made of decaying plants and animals that have been turned into to natural oil. A few examples of fossil fuels are coal and oil.


5 0
2 years ago
Read 2 more answers
Identify the type of molecule shown in the picture
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1) acid
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3) ester
4) aldehyde 
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6) amine 
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7 0
3 years ago
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