All categories

2 years ago

What is true of a sample of gas as temperature is increased? (3 points)

Chemistry

1 answer:

marissa [1.9K]2 years ago

6 0

As temperature increases, the average kinetic energy of a sample of gas molecules decreases.

You might be interested in

Write the balanced equation for the reaction of aqueous Pb ( ClO 3 ) 2 with aqueous NaI . Include phases. chemical equation: Wha

aleksandr82 [10.1K]

<u>Answer:</u> The mass of precipitate (lead (II) iodide) that will form is 13.83 grams

<u>Explanation:</u>

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$

Molarity of NaI solution = 0.300 M

Volume of solution = 0.200 L

Putting values in above equation, we get:

$0.300M=\frac{\text{Moles of NaI}}{0.200L}\\\\\text{Moles of NaI}=(0.300mol/L\times 0.200L)=0.06mol$

The balanced chemical equation for the reaction of lead chlorate and sodium iodide follows:

$Pb(ClO_3)_2(aq.)+2NaI(aq.)\rightarrow PbI_2(s)+2NaClO_3(aq.)$

By Stoichiometry of the reaction:

2 moles of NaI produces 1 mole of lead (II) iodide

So, 0.06 moles of NaI will produce = $\frac{1}{2}\times 0.06=0.03mol$ of lead (II) iodide

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Moles of lead (II) iodide = 0.03 moles

Molar mass of lead (II) iodide = 461.1 g/mol

Putting values in above equation, we get:

$0.03mol=\frac{\text{Mass of lead (II) iodide}}{461.1g/mol}\\\\\text{Mass of lead (II) iodide}=(0.03mol\times 461.1g/mol)=13.83g$

Hence, the mass of precipitate (lead (II) iodide) that will form is 13.83 grams

6 0

3 years ago

How many grams are there in a 3.5 moles of oxygen

mylen [45]

Answer:

112 of O2

Explanation:

Now if simply oxygen is given so we'll consider O2

3.5 moles O2 means,

3.5 x 32 = 112 grams of O2

7 0

3 years ago

How many moles are in 3.4 x 10^23 molecules of carbon dioxide CO2

Soloha48 [4]

Moles roughly: 6.02x10^23

3.4x10^23/6.02x10^23 = .565
Rounded to the thousandths

7 0

3 years ago

Microwave warming Popcorn is a example of

Viefleur [7K]

Answer:

Explanation:

Ttu67j5ri76tio5777t65y75ircyjutfjgtfv

4 0

3 years ago

What describes the solvent in any solution

Lady_Fox [76]

Solvent is more than a solute. Like salt water. Water is the solvent and salt will be the solute

5 0

3 years ago

Read 2 more answers