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A female patient requires 2.70×10-2 grams of a sulfa drug then determines how many tablets should be given to her if there are five tablets in stock.
A rectangular block of plastic floats in the middle of the Pacific Ocean , measuring 1.79 cm by 1.73 cm by 2.29 cm,. The volume of sea water displaced by the plastic block = 4.80 cm3. Supposing the density of the sea water = 1.025 g/mL, determine the density of the plastic?
Determine how will this error control the final computed percentage of CH3COOH in the vinegar
The reported values for one compound (CaHbOc) were as follows: mass: 214.1360 g/mol; percent C and H: 84.07 and 8.47, respectively. Determine the molecular formula of the compound.
Determine the molar mass of aspartame and How many moles of molecules are in 10.0g of aspartame?
Find the pH solution & Hydronium ion concentration and What is the pH of a solution of 0.17 M acid and 0.81 M of its conjugate base if the pKa = 8.62?
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
How many grams of water should be produced and What is the theoretical yield of nitrogen?
Compute pH and [OH-] for each of the following solutions. (a) 8.1×10-2M Na2CO3, (b) 0.15M NaCN
Explain why the boiling point of an aqueous solution that is 1.0 m in glucose (C6H12O6) is 100.51oC whereas The boiling point of an aqueous solution that is 1.0 m in NaCl is 101.02 oC .
Determine What is the final concentration and calculate what is the Ksp of this salt at temperature of 25 degrees Celsius?
Calculate How many grams of pure, solid sodium hydroxide are needed to make 500 mL of 0.15M NaOH solution and also express the answer in just 2 significant figures?
Write a reaction for the formation of a peptide bond between alanine and serine. React the amino group of alanine with carboxyl group of serine. Remember that there are 2 products in this reaction.
What mass of Au is produced when 18.6 ampere of current are passed through a gold solution for 29.0 minutes.
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