Chemistry Answers
How to calculate the pH of the following water solutions?
I've tried multiple equations..
1. 0.000000419 [OH-]
2. 0.0000381 M [H+]
3. 3.69 x 10^-9 M HClO4 ( 4 is subscript)
4. 6.27 x 10^ -5 M NaOH
how does evaporation affect heating and cooling?
I was just wondering, how does evaporation affect cooloing or heating? Does it affect it at all?
Read more...I need help with Standard Temperature and Pressure problems?
a) How many moles of nitrogen are there in a volume of 5.6 liters of nitrogen gas at STP?
b) What volume will be occupied by 11.4 moles carbon dioxide gas ...
Did i do this conversion right?
Equation is 2KClO(subscript 3) = 2KCl + 3O(subscript 2)
Question: How many grams of O(subscript 2) are produced if 2.5g of 2KClO(subscript 3) is completely decomposed by heating.
I got .652g
I did ...
Chemistry homework help?!?
The yeast in rising bread dough converts sugar (sucrose, C12H22O11) into carbon dioxide. A popular recipe for two loaves of French bread requires 1 package of yeast and 1/4 spoon ...
Read more...Chemistry homework help. Working with liters, grams, temperature (in C), pressure, and atms.?
Given the following unbalanced chemical reaction for the rusting or iron:
Fe(solid) + O2 (gas) + H2O (liquid) -> Fe2O3(H2O)2
If 1.5 liters of oxygen gas were add to excess water and ...
Help with Stoichiometry?
I need help with this problem. I have chemistry finals tomorrow, and this is really confusing me.
Ca(NO3)2 + Na2CO3 -> CaCO3 +NaNO3
The question is "How much Calcium Nitrate and ...
