To test if the hypothesis is correct, a good way is to think of it this way:
Density = mass/volume, right?
Calculate the mass and volume of each and do the equation; this will test your hypothesis.
You will be left with the density of each. But, make sure that the sample sizes are the same (controlled variable) otherwise it will be an unfair test.
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The mass of solid lead would displace exactly 234.6 liters of water should be <span>2,674,440</span>
The answer is 69.69 miles per hour
Answer: Answers are in bulleted lists.
Explanation: Aluminum...
- has a low density
- is non-toxic
- has a high thermal conductivity
- has excellent corrosion resistance
- can be easily cast, whether it's machined or formed.
Uses:
- Aeroplane Parts
- Cans
- Window frames
- Beer kegs
- Foils
- Kitchen utensils
Have a great day! :)
Answer : The correct option is, (C) 1.7
Explanation :
First we have to calculate the moles of 
and 
.
The balanced chemical reaction will be:
0.01 mole of dissociate to give 0.01 mole of 
ion and 0.02 mole of 
ion
and
0.03 mole of dissociate to give 0.03 mole of 
ion and 0.03 mole of 
ion
That means,
0.02 moles of ion neutralize by 0.02 moles of ion.
The excess moles of ion = 0.03 - 0.02 = 0.01 mole
Total volume of solution = 100 + 300 = 400 ml = 0.4 L
Now we have to calculate the concentration of ion.
Now we have to calculate the pH of the solution.
![pH=-\log [H^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%20%5BH%5E%2B%5D)
Therefore, the pH of the solution is, 1.7
