Student101

fumes were allowed to escape from the crucible. (what is the composition of the fumes )

If 5.40 kcal of heat is added to 1.00 kg of water at 100⁰C, how much steam at 100⁰C is produced? Show all calculations leading to an answer.

What is the oxidation number of chlorine in Al(ClO4)3?

Iron-59 has a half-life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of a new sample of iron? Show all calculations leading to a solution. I am really confused on how to find t here? Can someone help? I can set up the rest of the...

What salt results from the neutralization of phosphoric acid with potassium hydroxide? Would you set up an equation here?

A radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. What was the identity of the original nucleus? Show the nuclear equation that leads you to this answer. 13 X 28 --> 11 Na 24 + 2 He 4 look at the periodic table for atomic numb...

Iron-59 has a half-life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of a new sample of iron? Show all calculations leading to a solution. Is this how you would do this? (100/25) = 0.693 times (45.1) 4= 31.2543 final answer is 7....

If 5.40 kcal of heat is added to 1.00 kg of water at 100⁰C, how much steam at 100⁰C is produced? Show all calculations leading to an answer. Is this how you would do this? Q= m*Hvap Q= m* 5.40 Q=100*5.40 Steam = 540 kg of steam?

I have never had this answered. I am confused on how to set up the problem, and which numbers go where.

I have never had this done for me? I am still confused on how to find t?