Explanation:
(a)
The given data is:-
Energy = 2391 Calories
The conversion of calories to J is shown below as:-
1 calorie = 4.184 J
So,
Energy = 4.184 * 2391 J = 10003.944 J
Answer in four significant digits: -
(b)
The conversion of calories to kJ is shown below as:-
1 calorie = 0.004184 kJ
So,
Energy = 0.004184 * 2391 kJ = 10.003944 kJ
Answer in four significant digits: -
(c)
The conversion of calories to kWh is shown below as:-
1 calorie = kWh
So,
Energy = kWh = 0.002778873 kWh
Answer in four significant digits: -
Answer:
C. 0.72 M
Explanation:
To calculate the molarity use the following equation, C=n/V
You have the molar number n which is 0.702 and the volume 0.98 L
Replace those numbers in the formula C=0.702/0.98= 0.72 M
Answer:
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Explanation:
Answer:
NH₄Cl form closer to the end of the tube from which HCl was released.
Explanation:
Ammonia and hydrogen chloride gas react to form ammonium chloride water which can be seen by the formation of intensified fumes.
HCl + NH₃ ⇒ NH₄Cl
Since, the ammonia gas has a lower molecular weight as compared to that of hydrogen chloride gas. According to Graham's law of diffusion, the diffusion rate is inversely proportional to the square root of the molecular mass of the gas. <u>Thus, ammonia will diffuse faster as compared to hydrogen chloride gas. So, the white fumes will form at the side of the hydrogen chloride gas as it's diffusion will be slower and ammonia will diffuse fast and reaches to the gas.</u>