Answer:
The velocity of the particle is 2 m/s,
Explanation:
Kinetic energy is defined as energy of the body due to its motion. It is given by :
Where :
m = mass of the object
v = velocity of the object
We have , particle with mass m and its kinetic energy is twice its mass.
And unit of velocity are m/s , so the velocity of the particle is 2 m/s.
No of moles of naoh = 2.40 ÷ (23+16+1) = 0.06mol
no of moles of na2co3 = 0.06 ÷ 2 = 0.03mol
mass of na2co3 = 0.03 × (23×2+12+16×3) = 0.03 × 106 = 3.18g
An acidic solution is 0.1M in HCl and 0.2 H2so4. volume is equal to no of moles divided by molarity.
number of moles of HCl is 450ml x 0.1 divided by 1000 which is equal to 0.045 moles
volume of HCl is therefore 0.45 divided by 0.16 which is 2.81 litres
Number of moles of H2so4 is 450ml x 0.2 divided by 1000 which is equal to 0.09 moles
volume of H2SO4 IS 0.09 divided by 0.16 which is equal to 0.56 litres
Answer:
a, b
Explanation:
Electrolytes dissociate to make ions, because of it they conduct electricity.
This question needs the answer choices.
I found these choices for you:
<span>0.00032hL
320cL
32mL
Then you need to make the conversion of 0.032 liters to hectoliters, centiliters and milimilters to check which is not equivalent.
1) 0.032 liters to hectoliters:
0.032 liter * 1 hectoliter / 100 liter = 0.00032 hecoliter
2) 0.032 liter to centiliters:
0.032 liter * 100 centiliters / 1 liter = 3.2 centiliter
3) 0.032 liter to mililiter:
0.032 liter * 1000 mililiter / liter = 32 mililiter
Then, the answer is 320 cL: 320 cL is not the same as 0.032 liters
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