There are different kinds of compositions. The percentage mass composition of chlorine is 42% in HClO3 (gram-formula mass = 84 g/mol)
<h3>What is HClO3 known as?</h3>
This HClO3 is known to be popularly called as Chloric acid.
Percentage mass of chlorine is formula:
Percentage mass composition = mass of element * 100%/mass of compound.
Therefore;
HClO3 (gram-formula mass = 84 g/mol)
Percentage mass composition of chlorine = 35 * 100% / 84 = 42%
See full question below.
In which compound is the percent composition by mass of chlorine equal to 42%?
(1) HClO (gram-formula mass = 52 g/mol)
(2) HClO2 (gram-formula mass = 68 g/mol)
(3) HClO3 (gram-formula mass = 84 g/mol)
(4) HClO4 (gram-formula mass = 100. g/mol)
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Answer:
An event with a probability of 0 is Impossible. ✔
An event with a probability of 1 is Certain. ✔
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Well think about it... 12 rolls is already out since they are asking about 16 rolls. 320 divided by 16 is 20. So, the service bought 20 cases of paper towels containing 16 rolls.
The total amount of money Daniella will receive after 8 years at interest rate compounded semiannually is $5,030,105
<h3>How to find compound interest</h3><h3 />
- Principal = $50,000
- Rate = 6%
= 0.06
- Time = 8 years
- Number of periods = 2 (semi annually)
A = P(1 + r/n)nt
where,
- A = compound interest
- P = principal
- r = interest rate
- n = number of periods
- t = time (years)
Solve the equation for A
A = P(1 + r/n)^nt
A = 50,000.00(1 + 0.06/2)^(2×78)
A = 50,000.00(1 + 0.03)^156
A = $5,030,105.09
Approximately, $5,030,105
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