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Why would my balance say 0-Ld when I put my beaker full of water on it? I used the correct amount indicated on the science lab. It only did it for the 50mL beaker with the 55mL of water in it. All the rest of my water/beaker measurements worked just fine.
In the Haber process for the production of ammonia, N2(g) + 3H2(g) ---> 2NH3(g) what is the relationship between the rate of production of ammonia and the rate of consumption of hydrogen?
This flask is then connected to a second flask, which is evacuated and has a volume of 630. mL. The gas is subsequently allowed to fill both flasks. What is the final pressure of the gas in the first flask? What is the final pressure of the gas in..
What is the group number for each shaded region? Classify each of these substances as an element, a compound, or a mixture. Give a general characteristic of the elements in each of these groups.
1. how will you determine when all of the reactant has been converted into products?2. why is the crucible and its
answer the following questions assuming the known reactant is used up in making the rust. show all your work. use the
Molarity is only one of many ways to express concentration. Another is percent mass per volume or %(m/v). For example, vinegar usually contains about 5 %(m/v) acetic acid(5g acetic acid/100 mL vinegar)
For those pairs of atoms that must connect through ionic bonds predict the charges for each ion
Explain why would n-acetyltyrosine ethyl ester have a higher affinity for the active site in chymotrypsin than n-actylvaline ethyl ester based on their shape
Calculate the absolute errors of measured sugar concentration by using the values determined in the previous porblem as reference values.
Sodium-24, which is used to locate blood clots in the human circulatory system, has a half-life of 15.0 hours. A sample of sodium-24 with an inital mass of 13.0 g was stored for 45.0 hours. How many grams of sodium-24 is left in the sample after 4..
An industrial hygienist conducting personal sampling on a worker who is overseeing a production process involving use of acetone (Note: The Occupational Safety and Health Administration has established a Permissible Exposure Limit of 1000 parts..
What is a zymogen? Is it used over and over like other enzymes? And what is the physiological advantage
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