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polet [3.4K]
3 years ago
14

If the heat capacity of a 10 gram object is 300 J/C, the heat capacity of a 100 gram object of the exact same substance would be

equal to:
A. 300. J/C

B. 30,000. J/C

C. 3,000. J/C

D. 3.00 J/C

E. 30.0 J/C
Chemistry
1 answer:
I am Lyosha [343]3 years ago
3 0

Answer:

the answer should be see

that is 3000.J/C

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kramer
I believe the answer is A. Hope this helps.
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A sample of oxygen is collected over water at a total pressure of 692.2 mmHg at 17°C. The vapor pressure of water at 17°C is 14.
frutty [35]

Answer:

677.7 mmHg

Explanation:

The first empirical study on the behaviour of a mixture of gases was carried out by John Dalton. He established the effects of mixing gases at different pressures in the same vessel.

Dalton's law states that,the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the individual gases present in the mixture of gases. When a gas is collected over water, the gas also contains some water vapour. The partial pressure of the gas will now be given as; total pressure of gas mixture - saturated vapour pressure of water (SVP) at that temperature.

Given that;

Total pressure of gas mixture = 692.2 mmHg

SVP of water at 17°C = 14.5 mmHg

Therefore, partial pressure of oxygen = 692.2-14.5

Partial pressure of oxygen = 677.7 mmHg

5 0
3 years ago
Covalent bonding is important between atoms of biological molecules, but other factors are important for self-assembly. For exam
Gekata [30.6K]

Answer:

1. Polar

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5 0
3 years ago
using the same balanced equation, what is the number of moles of carbon dioxide produced from 3.750 moles of propane?
kondor19780726 [428]

Answer:

11.25moles of CO2

Explanation:

First, let us generate a balanced equation for the reaction of propane to produce CO2. This reaction called Combustion. It is a reaction in which propane burns in air (O2) to produce CO2 and H20. The equation is given below:

C3H8 + 5O2 —> 3CO2 + 4H2O

From the equation,

1mole of C3H8 produced 3moles of CO2.

Therefore, 3.750 moles of C3H8 will produce = 3.750 x 3 = 11.25moles of CO2

5 0
2 years ago
which term is used when sugar is completely dissolved in water                                                                 
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The term which is used is homogeneous.
when sugar is completely dissolved in the water, the mixture or solution homogeneous, both in same phase and same uniform texture that is liquid.
There two types of mixtures are heterogeneous and homogeneous in different phases.
If sugar is not completely dissolved in water and you see the crystals of sugar in water, then the solution will be heterogeneous.
3 0
3 years ago
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