True False Regardless of which IR model an organization chooses, multiple employees should be in charge of incident response.
#Copper isotope with 34 neutrons free
The empirical formula of menthol is thus C10H20Oĭo you think that power is properly divided and shared among national, state, and local governments, or has congress take on more power than the Founders intended? As a result of Stage 2: Anything Goes thinking, we can feel free to condemn any belief or action we personally believe is heinous, and we are justified in praising any belief or action we personally view as laudatory. The empirical formula can be obtained by dividing the number of moles of each by the smallest which is that of carbon and oxygen 0.000065 The number of moles of oxygen is the mass of oxygen divided by its atomic mass unit. The mass of oxygen equals the mass of the compound minus that of hydrogen and that of carbon. The number of moles here is thus 0.01153/18 = 0.00064 moleīut there are 2 atoms of hydrogen in 1 mole of water and thus, the number of moles of hydrogen is 2 * 0.00064= 0.00128 mole To get the number of moles of water, we need to divide the mass of water by its molar mass. The mass of carbon in the compound is thus 12 * 0.00064= 0.00768įrom the number of moles of water, we can get the number of moles of hydrogen. The mass of carbon in the compound is simply the number of moles multiplied by the atomic mass unit. Since there is only one carbon atom in CO2, the number of moles of carbon is same as above The number of moles of carbon iv oxide is 0.02816/44 = 0.00064 mole The molar mass of carbon iv oxide is 44g/mol We first divide the mass by the molar mass of carbon iv oxide. We can get the answer through calculations as follows.įrom the mass of carbon iv oxide produced, we can get the number of moles of carbon produced. Now put all the given values in this formula, we get:įirstly, for convenience sake, we are converting all mg to g. Now we have to calculate the mass of C₅H₅NHCl. Now put all the given values in this expression, we get: Now we have to calculate the concentration of C₅H₅NHCl.
Now put the value of in this expression, we get: The expression used for the calculation of is, Be sure your answer has a unit symbol, and round it to 2 significant digits.Īnswer : The mass of C₅H₅NHCl is, 34 grams.įirst we have to calculate the value of. You may assume that the volume of the solution doesn't change when the C₅H₅NHCl is dissolved in it. What mass of C₅H₅NHCl should the student dissolve in the C₅H₅N solution to turn it into a buffer with pH = 4.76 ? Pyridine is a weak base with Kb = 1.7 × 10⁻⁹.
This is an incomplete question, here is a complete question.Ī chemistry graduate student is given 500 mL of a 0.20 M pyridine C₅H₅N solution.
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