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1. Explain how many mmol of NaOH will react entirely with 50ml of 1.5M H2C2O4?2. Explain how many moles of H3O+ are present in 250ml of 0.30M solution of H2SO4?
Explain why treating a mixture of vanillin and eugenol to steam distillation would result in distillation of eugenol only
What mass of sucrose should be combined with 488 of water to make a solution with an osmotic pressure of 8.25 at 280.
For the unbalanced equation Cl2 ++ KI = I2 + KCl - how many moles of the second reactant would be require to react exactly with the 0.275 mole of the first reactant
A buffer solution is prepared by adding 15.00 g of sodium acetate ( NaC2H3O2), and 12.50 g of acetic acid to enough water to make 500 mL of solution. What is the pH of the buffer?
Explain why is it necessary to add an acid catalyst such as HCl or sulfuric acid while there is already a carboxylic acid present
Explain why selectivity in isocratic HPLC system ideally should not depend on eluent composition. Use thermodynamic derivation to support your explanation.
A sample of a gas occupies a volume of 1063 mL at 83ºC and 0.22 atm. What would be the new volume if temperature decreases to 34ºC and pressure increases to 1.22 atm
A solution is made by mixing 4.6 mL of 0.274 M Fe(NO3)3 and 656.0 mL of water. What is the concentration of Fe3+ in the resulting solution?
The molar heat capacity of silver is 25.35J/mol*C . How much energy would it take to raise the temperature of 11.9g of silver by 11.6C
When a sample of phosphorus-32 was placed 1 cm from the detector, the intensity of its radiation was measured to be 491 counts per second. What would its activity be 2 cm from the detector
a 1.00 g sample of enriched water a mixture of h2o and d2o reacted completely with cl2 to give a mixture of hcl and
What differences might you expect in the comparative solubility of each of them in lipids? WHY?
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