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A small sterling silver bracelet has a volume of 7.33 ml and mass of 76.0g by water displacement. Determine the mass and %Ag and the mass and %Cu in the bracelet. Suppose the volumes to be linearly
Write down the charge and formula of a polyatomic anion that have only oxygen and carbon and has a -2 charge.
While 20.0 wt % solutions has a density of 1.18g/mL, A 40.0 wt % solution of CsCl (FM 168.37 g/mol) has a density of 1.43 g/mL,
It was found that 36.0 mL of 0.100 M NaOH was needed to react totally with 0.765 g of sample in the titration of an impure sample of KHP, Determine the percentage of KHP in this sample?
Diluted sample (1:20) of protein which is having 20 μL was added to 2ml of Bradford reaction assay tube. At 595 the absorbance was 0.70 and on the x-axis, according to a BSA standard curve corres
From oil wells the ethane is flamed off in abundance, because it is difficult and un-reactive to use commercially. But would it make a good fuel?
Fructose and Glucose are simple sugars with the molecular formula C6H12O6. Sucrose is a complex sugar with molecular formula C12H22O11 that consists of a glucose unit coralntly bound to a fruc
By a bond of constant force 855 N m-1 suppose a hydrogen atom is absorbed on the surface of a gold nano-particle. Determine the wavelength of a photon required to excite a transition among its neig
Determine the number of grams of the element nickel are contained in10.0g of a 10.2 wt% solution of nickel sulfate hexahydrate NiSO4 X6H2O (FM 262.85)?
Calculate the new water level after 35.6 g of silver metal is submerged in the water if a graduated cylinder has 28.0 mL of water.
Assume that 1.70 x103 kg of Fe is acquired from a3.93 x103 kg sample of Fe2O3. Assuming that the reaction goes to completion, determine the percent purity of Fe2O3 in the original
Carbon reacts with oxygen to form carbon dioxide when carbon it burned in air. When 18.0g of carbon were burned in presence of 61.4g of oxygen, then the 13.4g of oxygen rema
Find out how much carbon is present in the entire atmosphere lying above each square meter of Earth's surface?
The ant caking agent added to Morton salt is calcium silicate (CaSiO3). This compound can absorb up to 2.5 times its mass of water and still remains a free-flowing powder. Find out the percent compo
Determine the number of grams of nickel would be electroplated by passing a constant current of 7.2 A by a solution of NiSO4 for 90.0 min?
A typical human generate about 10 MJ of energy transferred as heat each day by the metabolic activity. With the heat capacity of water if a human body were an isolated system of mass 65 kg, Explain
Determine the average linear momentum of a particle described by the following wave functions which is having x ranges from -∞ to+∞ :
Hydrogen sulfide has an odor recognition threshold concentration of 0.47 ppb. Describe the minimum concentration of both sulfate and lactate that would lead to the recognition of H2S based on the eq
0.692g of glucose which is having the empirical formula CH2O is dissolved in 28.0g of benzene (Tb=80.10oC,Kb=2.53oC kg/mol) and the solution has a Tb=80.45oC, Calculate the molecular formula of glucos
A block of metal has a length of 17.1 cm, a width of 3.2 cm and a height of 3.3 cm. It is having the mass 1.3 kg. Describe the density of the metal.
A natural gas analyzes N2, 20.0 percent and CH4, 80.0 percent. It is burned under a boiler and for the production of dry ice most of the CO2 is scrubbed out of the flue gas. The exit gas from the
For the reaction 2 NO (g)+O2(g)-------------2NO2gaz the kc is 6.45 times 10 E-5 at 500 k assume your mix 2.00moles of NO2 gaze in a 1.00 liter and 2.00 moles of NO ,2.00 moles of O2gaz flask.
When the total gaze pressure is calculated as 0.659, and if NH3 is added to bring the total pressure to 1.250atm, Calculate the new partial pressure of H2S?
Calculate the concentration of a MnO41-solution that has absorbance of 0.360 in the same cell at that wavelength if a 0.370 mM solution of MnO41- has an absorbance of 0.555 at 525 nm in a 1.000 c
To make 48.50 mL of solution 20.00 mL of the resulting solution a 0.2400-g sample of impure Ca (OH)2 is dissolved in enough water then titrated with 0.1819-M HCl.