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Utilizing the average atomic masses for each of the following elements, Compute the number of moles of the element present in each of the following samples:
i) 25.10 g of antimonyii) 0.05512 g of bariumiii) 1.195 g of platinum
for 17 liters of gas at 67 degrees celsius and 88.89 atm what will be the pressure of the gas if the temperature rises
Predict how the inert pair effect would manifest itself beyond group 15 and compare your predictions with the chemical properties of the elements involved.
What is the limiting reagent? What is the theoretical yield of acetanilide? What is the percent yield if 3.3g of acetanilide is obtained?
What is the equation for the net reaction. A+B-->C delta H= -120 C+B-->D delta H=-40
How much heat (in ) is evolved in converting 1.00 of steam at 130.0 to ice at -50.0? The heat capacity of steam is 2.01 and of ice is 2.09
Sulfuric acid has a dual role in the chemistry. What are its two roles in the recovery of copper metal
Draw the alkyne formed when 3,4-dichloroheptane is treated with an excess of strong base such as sodium amide
A 0.879g sample of a CaCl2.2H2O/K2C2O4.H2O solid salt mixture is dissolved in 150ml of deionized water, previously adjusted to a pH that is basic. The precipitate, after having been filtered and air-dried, has a mass of 0.284g. The limiting reactant ..
Pre-Lab Assignment- Understanding Activity 3 in this manual and significant figures and uncertainty in measurements in general will help you answer the last two questions
Which of the following statements concerning the determination of crystal structure by x-ray diffraction is incorrect? X-rays are reflected from the repeating planes of an ordered crystal lattice
How much of a 10mM protein solution would you need to prepare 3 mL of a 3mM protein solution. What size micropipette would you use to measure the volume of protein calculated in part a
throat lozenges was dissolved in enough water to make 10.0 mL of solution at 25 degrees C. The osmotic pressure of the resulting solution was 4.95 atm. Calculate the molar mass of the compound. Answer in g/mol.
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