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Suppose helium nuclei has exactly the same mass as adding two single protons and neutrons, the Sun's luminosity would be
a. much greater than its current value
b. much lower than its current value
c. roughly the same
Calculate the pressure difference between CH4 and an ideal gas under these conditions. The van der Waals constants for CH 4 are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
Determine the concentration of H+ ions in a solution of HCl that was prepared b diluting 50.0 mL of concentrated (11.6 M) Hydrochloric acid to a final volume of 500mL?
You decide to use gel filtration. This works brilliantly and you determine that your protein is 80kDa at the same time. But wait! The gene that corresponds to HMD predicts a protein of only 38kDa. What are two potential causes of this discrepancy?
Calculate the solubility of Ce(IO3)3 (pKsp=10.86) in: a) distilled H20 b) 0.300 M Ce(NO3)3 solutiom c) 0.200 M KIO3 solution
Consider a hypothetical reaction in which A and B are reactants and C and D are products. if 15grams of A completely reacts with 12grams of B to produce 14grams of C, how many grams of D will be produced.
How many grams of calcium chloride should be formed from the reactions of hydrochloric acid and calcium hydroxide? If the reaction in 2.4 only produces 3.0 g calcium chloride, calculate the percentage yield of calcium chloride.
When sodium sulfate, Na2(SO4), is dissolved in water, the temperature goes down. How would you describe the energetics of this process?
What is the final temperature of the sand A 1.00 kg gold bar at 1010 K is dropped into 0.750 kg of sand at twenty five degree Celsius?
Suppose one wated to take another approach where C is heated until 5% of the atoms occupy the electronically excited state. Consedering only the lowest-energy ground state and the elctronically excited state
RNA Splicing- What is the minimum number of transesterification reactions needed to splice an intron from an mRNA transcript
What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 67.0 mL of 0.0755 M HBrO and 89.0 mL of 0.130 M NaOH
How much heat is associated with converting 100g steam at 112 degrees c to ice at -5.3 degrees c
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