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In a few sentences, explain the difference between primary, secondary and tertiary structure in a protein.
At 0.0 degrees C, if the volume of air is 2.5 mL and the pressure of the atmosphere that day is 805 mmHg, what is the number of moles of air.
How many grams of copper are in the necklace? 3. If 18-karat gold has a density of 15.5 , what is the volume in cubic centimeters?
You have a fixed container with a volume of 5.00L that contains 35.0 g nitrogen gas (N2). If the temperature is 298 K, calculate the pressure in the container.
Draw the molecular orbitals for the following molecules. Label the hybridization of all non-hydrogen atoms BF3, CH20, O3
One food product has an energy content of 170 kcal per serving, and another has 280 kJ per serving. Which food provides the greater energy per serving?
a premature infant is born. she weighs less than normal. her mother has been on a near starvation diet for the last month. the infant's blood glucose at birth and 5 hours later is very low. the problem may have been
Calcium nitrate solution is added to a solution of sodium phosphate
Below is my question about concentrations in gases and liquids. I understand Henry's Law and how it relates to partial pressures and can described the concentrations of gases and liquids,
the percentage of silver impurity in a lead sample was determined by the following procedure a sample of lead weighing
Calculate the pH at 25°C of an aqueous solution that is 0.320 M in ethylamine and 0.140 M in ammonia (i.e. the solution contains both compounds). The pKa of the conjugate acid of ethylamine is 10.65 and the pKa of the conjugate acid of ammonia is ..
A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr^3+ and a gold electrode in a solution that is 1.0 M in Au^3+.
Calculate the pH of the solution after the addition of 30ml of 0.1M NaOH. Show you work. Draw the structure of the form is His predominating in solution at neutral pH.
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