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galina1969 [7]
2 years ago
10

A family pool holds 10,000 gallons of water. How many cubic centimeters is this?

Chemistry
1 answer:
Ierofanga [76]2 years ago
3 0

Answer:

3.785412e+7cm³

Explanation:

Have a nice day.

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A 12-liter tank contains helium gas pressurized to 160 \rm atm.How many 3-liter balloons could the 12-L helium tank fill? Keep i
Vikentia [17]

Answer:

636 balloons

Explanation:

If we assume that helium gas follows an ideal gas behaviour, we can use the ideal gas law to solve this problem as follows:

  1. We consider two different states, the initial given by the conditions of the problem statement and the final, when the tank reaches atmospheric pressure and it's no longer able to fill balloons:P_{1}=160 atm\\V_{1}=12 L\\P_{2}=1 atm\\V_{2}= ?
  2. To find out what would be this volume 2, we use the Boyle's Law: P_{1}V_{1}=P_{2}V_{2}\\V_{2}=\frac{P_{1}V_{1}}{P_{2}} \\V_{2}=\frac{160 atm \times 12L}{1 atm}\\V_{2}=1920 L
  3. Now we find the available volume to fill the balloons by substracting both, volume 2 and volume 1: V_{b}=V_{2}-V_{1}=1920L-12L=1908 L
  4. Finally, we determine the quantity of ballons by dividing that available volume between the volume of each ballon:B=\frac{1908L}{3L} =636 balloons
8 0
2 years ago
If i have 340mL of a 1.5 M NaBr solution, What will the concentration be for 1000mL?
Gekata [30.6K]

Answer:

0.51M

Explanation:

Given parameters:

Initial volume of NaBr = 340mL

Initial molarity  = 1.5M

Final volume  = 1000mL

Unknown:

Final molarity = ?

Solution;

This is a dilution problem whereas the concentration of a compound changes from one to another.

In this kind of problem, we must establish that the number of moles still remains the same.

    number of moles initially before diluting = number of moles after dilution

Number of moles  = Molarity x volume

Let us find the number of moles;

          Number of moles  = initial volume x initial molarity

Convert mL to dm³;

                  1000mL  = 1dm³

                     340mL gives \frac{340}{1000}   = 0.34dm³

Number of moles  = initial volume x initial molarity  = 0.34 x 1.5 = 0.51moles

Now to find the new molarity/concentration;

               Final molarity  = \frac{number of moles}{Volume}    = \frac{0.51}{1}    = 0.51M

We can see a massive drop in molarity this is due to dilution of the initial concentration.

6 0
3 years ago
Draw the structure of the following atoms<br> (1) 19/9 F<br> (2)28/14 SI
Svet_ta [14]

Answer:

might help

Explanation:

8 0
2 years ago
Strigol is an important plant hormone that is released by crops such as rice and sugarcane. Unfortunately for these plants, stri
Len [333]

The hydrogen deficiency index( HDI) of strigol is = 10

<h3>How to calculate HDI:</h3>

The hydrogen deficiency index is used to measure the number of degree of unsaturation of an organic compound.

Strigol is an example of an organic compound because it contains carbons and hydrogen.

To calculate the HDI using the molecular formula given (C19H20O6) the formula for HDI is used which is:

hdi =  \frac{1}{2} (2c + 2 + n - h - x)

where C = number of carbon atoms = 19

n= number of nitrogen atoms = 0

h= number of hydrogen atoms = 20

X = number of halogen atoms = 0

Note that oxygen was not considered because it forms two bonds and has no impact.

There for HDI =

\frac{1}{2} (2 \times 19 + 2 + 0 - 20 - 0)

HDI=

\frac{1}{2} (40 - 20)

HDI =

\frac{1}{2}  \times 20

HDI = 10

Therefore, the hydrogen deficiency index of strigol is = 10

Learn more about unsaturated compounds here:

brainly.com/question/490531

7 0
2 years ago
Is it possible to make CD without plastic? why or why not?
Kisachek [45]
I think it is not possible to make cd without plastic . because except plastic no other material is so durable for making cd.
5 0
2 years ago
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