The action of bacteria on meat and fish produces a poisonous compound called cadaverine. As its name implies, it stinks! It is 58.77 percent carbon, 13.81 percent hydrogen, and 27.40 percent nitrogen. Its molecular weight is 102.2 g/mol. Determine the molecular formula.
Calculate the empirical formula for a chemical compound that gives the following analysis: 65.2 g scandium and 34.8 g oxygen.
A certain compound has an empirical formula of NH2O. Its molar mass is between 55 and 65 g/mol. What is its molecular formula?
compound has a molar mass of 100 g/mol and the percent composition (by mass) of 65.45 percent C, 5.45 percent H, and 29.09 percent O. Determine the empirical formula and the molecular formula.
Before the invention of refrigerators, pioneers preserved meat by salting it. Explain how meat can be preserved by this procedure.(Hint: think about what salting the meat would do to decomposer organisms, such as bacteria and
Which of the following is not responsible for nitrogen fixation? a. Action of lightning on atmospheric nitrogen and oxygen b. industrial production of nitrohen based fertilisers c.rhizobium bacteria found in the root nodules of
I tried to reduce the sentences myself though I think you still need to revise it. Thank you very much. 1) We decided to create an effective and inexpensive filter using knowledge of genetic engineering. 2) In particular, we
Just a doubt on my previous post. Isn't "bacteria" plural? Can I use bacterium for the singular? 1) In particular, we prepared (have prepared)a genetically modified bacterium (?), the ..., which can survive using arsenic instead
The supply of meat in Russia increases, causing meat prices to fall. Lower prices always means that Russian households spend more on meat. There is something wrong with this sentence. What is wrong? The work ALWAYS should not abe
Bacteria have a doubling time of roughly 10 hours. A normal bacteria starting population would be approximately 10,000 bacteria per ml of fluid...I am not sure if I have done these questions correctly and would like some
does tofu have any naturally occuring bacteria in it? When I incubated the tofu juice, a white bacteria grew, but I can't find any information stating what it might be. It should not have an "natural" bacteria in it. Bacteria are
Two Questions: 1) A certain radioactive isotope has leaked into a small stream. 100 days later after the leak 10% of the original amount of the substance. Determine the half-life of this radioactive isotope. 2) During a research
I need some help with some of these questions: The action of bacteria on meat and fish produces a poisonous compound called cadaverine. As its name implies, it stinks! It is 58.77 percent carbon, 13.81 percent hydrogen, and 27.40
Bacteria Y has a mutation within it’s genome, at gene R, that provides resistance to neomycin. Bacteria Z is sensitive to neomycin, however, when Bacteria Y is placed in a mixture with Bacteria Z, Bacteria Z also gains neomycin