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2 years ago

A toy balloon blown upto 10° C has a

Chemistry

1 answer:

larisa86 [58]2 years ago

8 0

Answer:

this is an example

Explanation:

Yes, the balloon will burst at room temperature.

As we know that, 480 x 7/8 = 420 is the maximum Stretching capacity of the balloon.

b) V. / T. = V/T

Where

V = 480 ml and T. = 5 C(278 K)

And T= 30 C( 303 K)

V = V.T/T.

V = 480 x 303/278

V = 523.1 ml

b)V./V=T./T ?

Where

V = 480 ml and

T = 5 C (278 K)?

And V = 420 ml

T=T.V./V

=278 x 480/420

= 317.17 k

Therefore the balloon will burst at the temperature of 317.17 k

Also learn more

The temperature of 0.5 kg of water is 303 K. It is cooled to 278 K by keeping it in a refrigerator. what is the time taken by water to reach 278 K if 87.5 J of heat is given out in each second? ( specific heat capacity of water is 4200 J/kg K )

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How many ml of a 2.0 m nabr solution are needed to make 200.0 ml of 0.50 m nabr?

gogolik [260]

To solve this we use the equation,

M1V1 = M2V2

where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.

2.0 M x V1 = 0.50 M x 200 mL

V1 = 50 mL needed

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3 years ago

Which of the following elements would be predicted to be the best conductor of electricity? sodium (Na) germanium (Ge) sulfur (S

lubasha [3.4K]

Na because its a metal. Metals are the best conductors. S and Ne are nonmetals. and Ge is a metalloid. (Metalloids are semi conductors)

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3 years ago

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Choose the correct mole ratio for the balanced equation below. Ca + 2H2O → Ca(OH)2 + H2

Cerrena [4.2K]

Answer: For every one mole of Ca used in this reaction, two mols of H20 are used, one mole of Ca(OH)2 is formed, and one mole of H2 is formed.

Explanation: Once the equation is balanced, you can get the ratio from the coefficients. If you are looking at the ratio of Ca to H2O, the ratio is 1:2; Ca to H2 1:1.

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2 years ago

8. How much heat is released when 85.0 g of steam condense to liquid water?

sergeinik [125]

Answer:

199920J

Explanation:

Given parameters:

Mass of steam = 85g

Unknown:

Heat released when the liquid is condensed = ?

Solution:

The heat released by the substance is given as;

H = mL

H is the heat released

m is the mass

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3 0

3 years ago

Complete and balance the molecular equation for the reaction of aqueous sodium sulfate, Na2SO4, and aqueous barium nitrate, Ba(N

Rina8888 [55]

Answer:

1. The balanced molecular equation is given below:

Na2SO4(aq) + Ba(NO3)2(aq) —> BaSO4(s) + 2NaNO3(aq)

2. The net ionic equation is given below:

SO4^2-(aq) + Ba^2+(aq) —> BaSO4(s)

Explanation:

1. The balanced molecular equation

Na2SO4(aq) + Ba(NO3)2(aq) —> BaSO4(s) + NaNO3(aq)

The above equation can be balance as follow:

Na2SO4(aq) + Ba(NO3)2(aq) —> BaSO4(s) + NaNO3(aq)

There are 2 atoms of Na on the left side and 1 atom on the right side. It can be balance by putting 2 in front of NaNO3 as shown below:

Na2SO4(aq) + Ba(NO3)2(aq) —> BaSO4(s) + 2NaNO3(aq)

Now, the equation is balanced.

2. The bal net ionic equation.

This can be obtained as follow:

Na2SO4(aq) + Ba(NO3)2(aq) —>

In solution, Na2SO4 and Ba(NO3)2 will dissociate as follow:

Na2SO4(aq) —> 2Na^+(aq) + SO4^2-(aq)

Ba(NO3)2(aq) —> Ba^2+(aq) + 2NO3^-(aq)

Na2SO4(aq) + Ba(NO3)2(aq) —>

2Na^+(aq) + SO4^2-(aq) + Ba^2+(aq) + 2NO3^-(aq) —> BaSO4(s) + 2Na^+(aq) + 2NO3^-(aq)

Cancel the spectator ions i.e Na^+ and NO3^- to obtain the net ionic equation.

SO4^2-(aq) + Ba^2+(aq) —> BaSO4(s)

7 0

3 years ago