Please explain with any fake data to help you explain to me in steps how to be able to solve - the loss of mass - the mass % of water - the theoretical mass % of water
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Please explain with any fake data to help you explain to me in steps how to be able to solve
- the loss of mass
- the mass % of water
- the theoretical mass % of water.
Step by step
Solved in 2 steps
- For Be-10, find the: a.) mase defect (in grams) b.) binding energy in kilojoules per mole. mass proton= 1.00728 amu; mass neutron= 1.00867 amu; mass Be-10 = 10.013534679 amuYou are given a solution of 0.117 M NaOH solution. You need to neutralize 10.00 mL of the NaOH solution with an acid called KHP. The reaction is: KHP+ NaOH --> H2O + a salt If you are going to make up a KHP stock solution in a 100.00 mL Volumetric flask and use 14.137 mL of the KHP stock solution to neutralize the NaOH, what mass of KHP would you need to use? The molar mass of KHP is 204.22 g/molePolonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 82 protons and 128 neutrons. When 210Po decays, it emits an alpha particle, which is a helium nucleus (2 protons and 2 neutrons). 210Po decay is tricky to detect because alpha particles do not carry very much energy compared to other forms of radiation. They can be stopped by, for example, a sheet of paper or a few inches of air. This property is one reason why authorities failed to discover toxic amounts of 210Po in the body of former KGB agent Alexander Litvinenko until after he died suddenly and mysteriously in 2006. What element does an atom of 210Po decay into after it emits an alpha particle?
- Polonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 82 protons and 128 neutrons. When 210Po decays, it emits an alpha particle, which is a helium nucleus (2 protons and 2 neutrons). 210Po decay is tricky to detect because alpha particles do not carry very much energy compared to other forms of radiation. For example, they can be stopped by a single sheet of paper or a few inches of air. That is one reason that authorities failed to discover toxic amounts of 210Po in the body of former KGB agent Alexander Litvinenko until after he died suddenly and mysteriously in 2006. What element does an atom of 210Po become after it emits an alpha particle?A solution with a density of 0.876 g>mL contains 5.0 g of toluene 1C7H82 and 225 g of benzene. Calculate the molarity of the solution.The main constituents in vinegar are water and ethanoic acid (CH3COOH). In order to determine the concentration of acid in homemade vinegar, a student titrated 25 cm3 of 001 M NaOH against the vinegar. The equation for the reaction is: CH3COOH(aq) + NaOH(aq) ® CH3COONa(aq) + H2O(l) The following titration results were obtained: Burette readings (cm3) Rough 1 2 Final burette reading 20.10 38.90 31.40 Initial burette reading 0.10 20.00 12.50 Volume of vinegar used 20.00 18.90 18.90 (a) What volume of vinegar should be used in the calculation? (b) What is the mole ratio of NaOH:CH3COOH? (c) Calculate the number of moles of alkali in 25 cm3 of NaOH solution used. (d) How many moles of acid were used in the titration? (e) Calculate the…
- Describe the preparation of the following solutions include all mathematic calculations and equipment of the laboratory needed A.500 mm of a solution of KNO 1.50 M B. 150 g of a solution 5.0% of NaC2H3O2 C. 500 mm of a solution of NaOH 0.50 M from a solution of NaOH 6.0 MYou want 235mL of a solution that consists of 10% BSA, 2.37mM KCl and 120µM EDTA. You have stock solutions of 20% BSA, 1.5M KCl and 200mM EDTA. What volumes of BSA, KCl, EDTA and water would you require to make up this solution? MW of KCl is 75.55. MW of EDTA is 292.24, MW of BSA is 66463)What type of mass spectrometer can determine the structure and molecular weight of a compound like quercetin? Explain the principle behind this MS.
- Why is the answer 30 AB/ab; 20 Ab/ab; 20 aB/ab; 30 ab/ab? How do I find that answer and is there a formula I am supposed to use?Elemental analysis of a compound with molar mass 342.3 g/mol gives the following mass percent composition: C 42.11%, H 6.48%, O 51.41%. Find the molecular formula of the compound. Enter your answer in the space below using the following format: if the molecular formula of a compound containing elements X, Y, and Z is X2YZ3 enter your answer as X2YZ3.The molarity of naoh is 0.1715
