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Explain how DNA fragments can be separated. Name a practical application for visualizing separated DNA fragments
A compound contains only carbon, hydrogen, and oxygen. Combustion of 51.34 g of the compound yields 75.26 g of CO2 and 30.81 g of H2O. The molar mass of the compound is 90.078 g/mol.
When performing a mass to mass stoichiometry problem, explain why masses must be converted to moles rather than directly using the mass of reactants to predict the mass of products.
The density of the unknown solution is 1.232g/mL. Calculate the specific gravity of the solution
Question- A crystal lattice has copper at all the corner positions and nickel at all the edge positions in a unit cell. 1) What is the formula of the unit cell
Neglect overpotential and determine the minimum potential required to electrolyze molten CrCl3. answer options: 0.80, 1.1, 1.4, 1.7, 2.0, 2.3V How grams of Cr would be deposited and how many liters of Cl2 gas would be produced at 127 oC and 3.59 a..
Helium gas at 104.0 kPa and 372.0 K is located within a cylinder with a piston. Initially the gas occupies 0.3000 m3. While a constant force, F, is applied to the end of the piston so that the pressure inside the cylinder is held constant at 104.0..
you come across a beaker that contains water, aqueous ammonium acetate, and a precipitate of calcium phosphate. write the balanced equation for a reaction between two solutions containing ions that could produce this solution.
A system consists of 6.00 moles of benzene. It is initially at a temperature of 76.0°C, a pressure of 0.878 bar, and a volume of 534.7 cm3. Calculate the volume of the system at the end of this process.
When a nitrite containing sample with a mass of 3.000 g was analyzed, 16.65 mL of 0.1500 M Na2S2O3 solution was required to completely titrate the sample. What is the mass percent of NO2- ion in the sample
diamond powder (C) and BaCO3, separates the mixtures and recovers 1.75g sugar, 0.86g diamond powder and 2.29g BaCO3(s). Calculate the percent recovery and percent composition if the initial mixture they started with weighted 5.08g
An aqueous solution of lead nitrate, Pb(NO3)2, is mixed with one of sodium cromate, Na2CrO4, resulting in the formation of a percipitate of lead chromate.
Problem- Nitrogen and Hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia.
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