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What are some things or conditions that could damage DNA if it were not protected, when you add reagents to protect the DNA as it underwent the isolation process.
Identify the chemical components and the proportions necessary to achieve a buffer with the desired pH. Include relevant calculations in your answer.
How many grams of nitrogen monoxide are produced when copper metal reacts with nitric acid to form water and 5.92 g of copper(II) nitrate in addition to the nitrogen monoxide?
Sketch a cell which depicts the electrolysis of a 1.00 M aqueous solution of HCl. Assume both the electrodes are copper. Indicate the ions in the solution and the half-reaction at each electrode. Calculate the minimum voltage required for the elec..
Consider 4.90 L of a gas at 365 mmHg and 20. degrees celisus . If the container is compressed to 3.00 L and the temperature is increased to 40.degrees celisus , what is the new pressure, P2, inside the container
The Cd2+ was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 29.2 mL of 0.0120 M Ca2+ . What were the molarities of Cd2+ and Mn2+ in the original solution
If the radius of a silicon atom is 1.18 x 10-8cm, what is the radius in nm?
Explain what is the pH of a solution made by mixing 30.00mL of 0.10 M acetic acid with 30.00mL of 0.10 M KOH? Presume that the volumes of the solutions are additive. Ka = 1.8 x 10-5 for CH3CO2H.
How much heat is required to warm 225 grams of ice from negative 46.8 degrees celsius 0 degrees celsius melt the ice, warm the water from 0 degrees celsius to 100 degrees celsius.
vinegar is a 5.0% solution by weight of acetic acid (CH3CO2H)in water. given that the ph for acetic acid is 2.41, the ka=1.8X10-5 and assuming the density of vinegar to be 1.00g/cm3, what is the percent dissociation for acetic acid in vinegar?
An ancient gold coin is 2.2 cm in diameter and 3.0 mm thick. It is a cylinder for which volume = (p)(radius)2(thickness). If the density of gold is 19.3 g/cm3, what is the mass of the coin in grams?
At a particular temperature and pressure, 25.0 g of CO2 occupy 7.16 liters. What is the volume of 14.0 g of CH4 at the same temperature and pressure?
A rigid container of O2 has a pressure of 388kPa at a temperature of 713K. What is the pressure at 273K.
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