Circumference of a circle is 2 x pi x r
They both have the same amount of CDs
bc 6 country Cds plus another 6 country CDs is 12 Cds. 5 rock Cds plus 5 rock CDs is 10 rock CDs. so in total they have 22 CDs
Answer:
The total cost is 1.25 dollars.
Step-by-step explanation:
The reaction between HCl and CaCO₃ is giving by:
2HCl(aq) + CaCO₃(s) → CaCl₂(aq) + CO₂(g) + H₂O(l) (1)
0.500L M: 100.01g/mol
0.400M
According to equation (1), 2 moles of HCl react with 1 mol of CaCO₃, so to neutralize HCl, we need the next amount of CaCO₃:
The CaCO₃ mass of each tablet is:

Hence, the number of tablets that we need to neutralize the HCl is:
Finally, if every 80 tablets costs 4.00 dollars, 25 tablets will cost:

<u>So, the total cost to neutralize the HCl is 1.25 dollars.</u>
I hope it helps you!