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Under what conditions would all three hydrogens be removed from H3PO4? I think it would need a strong base and high molarity.
A chemist needs to determine the concentration of a solution of nitric acid, HNO_3. She puts 865 mL of the acid in a flask along with a few drops of indicator.
3.24 x 10-3 g of a protein was dissolved in water (total vol. of 5.00 mL). Given the osmotic pressure of the solution was 1.50 x 10-3 atm and the temperature is 298.0K, calculate the molar mass of the protein.
what mass of oxalic acid dihydrate, H2C2O4 + 2H2O is required to prepare 280.0 ml of a 1.51 M solution of oxalic acid
The n.itrogen is converted to N2(g) and collected. given that 350-mg same yields 42.2 ml N2 at STP, calculate the percentage of nitrogen in the sample
An unknown sample with a molecular mass of 180.og is analyzed to yeild 40% c, 6.7% H, and 53.3% o. What is the empirical formula and the molecular formula of this compound?
Water's heat of fusion is 80. cal/g, and its specific heat is 1.0 cal/g.celsius. Some velomobile seats have been designed to hold ice packs inside their cushions.
Cars were timed by police radar as they passed in both directions below a bridge. Their velocities (kilometres per hour, numbers of cars in parentheses) to the east and west were as follows
How would you know which is the most polarizable and how would you order the boiling points from lowest to highest?
Iodine-131 is a radioactive isotope. After 9.00 days, 46.0% of a sample of 131I remains. What is the half-life of 131I
Write a balanced chemical equation for the dissolution of gold bromide in a sodium cyanide solution and calculate the overall equilibrium constant for this reaction
In a haloform reaction with chloride, what reaction step is pertinent to the synthesis of molecular chloride?
Important information about balanced chemical equation, 1. If 1 mole of Al4C3 has a mass of 144g and carbon has a mass of 12g, what is the atomic mass of aluminum?
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