Description Nickel(II)sulfate, used for nickel plating, is prepared by treatment of nickel (II) carbonate with sulfuric acid. NiCO3+H2SO4arrowNiSO4+CO2+H2O. Part A-How many grams of H2SO4 are needed to react with 11.3g of NiCO3? Express answer in appr. units. mH2SO4=__________ Part B-How many grams of NiSo4 are obtained if the yield is 79.4%. mNiSO4=_______
Description (Part A)-A hydrocarbon is a compound that contains mostly carbon and hydrogen. calculate the percent composition (by mass) of the following hydrocarbon: C10 H 22. Enter the percentages of carbon and hydrogen numerically to four significant figures, separated by commas. Carbon,hydrogen---------% (Part B)- A certain metal hydroxide, M(OH)2 contains oxygen by mass. What is the identity of the metal M? Enter full name of metal. Molar mass=--------------g/mol
Description Besides for the smoke detector, do you think there is a deliberate purpose for the radiation in any of the other common objects or is it a side effect of the material. If there is a purpose what is it?
Description Liquidized hydrazine, N2H4, and liquid 1, 1-dimethylhydrazine, N2H2(CH3)2, both react spontaneously with O2 and can be used as rocket fuel. Reaction A: N2H4(l) + O2(g) = N2(g) + 2H20(l) Reaction B: N2H2(CH3)2(l) + 4O2(g) = N2(g) + 4H2O(l) + 2CO2(g) a. Use the given information to calculate deltaHrxn for reactions A and B. Please show your work. Compound Standard enthalpy of formation deltaHformation N2H4(l) 50.6kJ.mol N2H2(CH3)2(l) 48.9kJ.mol O2(g) 0kJ/mol H2O(l) -285.8kJ/mol CO2(g) -393.5kJ/mol N2(g) 0kJ/mol b. If you have 5.00kg of each liquid rocket fuel, which will provide more energy? Show the calculation of energy for each compound.
Description Webquest: Dividing the Indivisible From 1803 to 1897, scientists continued to discover new elements and explain the behavior of matter in terms of the fundamental, indivisible particles. Like Democritus, Dalton and other scientists of his day agreed that these solid bits of matter could not be divided or cut into any smaller, more fundamental particles. Why should they believe otherwise? Treating atoms as solid bits of matter allowed them to explain a wide range of properties and behaviors of matter. This understanding changed dramatically in 1897 with the discovery of the first subatomic particle. Complete the Webquest to discover the subatomic particles that were discovered between 1897 and 1932, the stories of how they were discovered, and the names and backgrounds of the people who discovered them. Submit your completed assignment to the Webquest: Dividing the Indivisible assignment link for grading. For more information on how this assignment will be graded, please view the Webquest: Dividing the Indivisible rubric.
Description What is the mRNA sequence for the following segment of DNA? --CTCGTGGTTTCAACC-- (10 points) Based upon the mRNA sequence, what is the peptide sequence (10 points)?
