Atomic Number: 92
Mass Number: 238
Number of Protons: 92
Number of Neutrons: 146 (you calculate this by subtracting 238 from 92)
0.1 M x 0.5L = 0.05 mols HCl.
Adding 25 mL 2M NaOH is
2M x 0.025 L = 0.05 mols NaOH.
What you want to do is to back off very slightly with the NaOH (you might try something like 24.95 mL which I calculate to give 0.00019 M or a pH of 3.7. Inching closer, 24.99 mL would leave H^+ of 4E-5 for pH 4.4. The problem here is two-fold.
hope it helps
Answer:
Plant, animal, and bacteria cells are different from each other because of the parts and cell functions. A plant and animal cell has have nearly every cell parts in common, but a plant cell has chloroplast to collect sunlight to create energy or chemical energy.
Explanation:
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Answer:
a CUT stands for Circuit Under Test.
Explanation:
B. the number 3.
there are 2Al's on both sides and 6 Cl's on the right side so to balance it, you multiply Cl2 by 3 to get 6 Cl's.
