Chemistry

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1. chemistry

   A 100.0 ml sample of 0.300 M NaOH is mixed with a 100.0 ml sample of 0.300 M HNO3 in a coffee cup calorimeter. Both solutions were initially at 35.0 degrees celcius; the temperature of the resulting solution was recorded at 37.0

2. science

   A 25 ml solution of 0.5 M NaOH is titrated until neutralized into a 50 ml sample of HCl

3. Chemistry

   A student titrated 1.852 g of a mixture containing potassium hydrogen phthalate, KHP....? A student titrated 1.852 g of a mixture containing potassium hydrogen phthalate, KHP, with 0.163 M NaOH solution. She recorded an initial

4. CHEMISTRY

   You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving 8.75 moles of sodium chloride in enough water to produce a solution of 6.22l. 2. You have a sample which

1. chem

   An impure sample of (COOH)2 ·2 H2O that has a mass of 3.4 g was dissolved in water and titrated with standard NaOH solution. The titration required 42.7 mL of 0.156 molar NaOH solution. Calculate the percent (COOH)2 · 2 H2O in

2. Chemistry

   A solution is made by mixing 12.0 g of NaOH and 75.0 ml of 0.200 M HNO3 a) write a balanced equation for the reaction that occurs between the solutes. b) Caclulate the concentration of each ion remaining in solution. c) Is the

3. chemistry

   What is the concentration of a HNO3 solution if 10.0 mL of the solution is neutralized by 3.6 mL of a 0.20 M NaOH solution?

4. chem

   a 50ml aliquot sample of vinegar is titrated with a 0.078 M NaOH sol'n. The phenolpthalein end point was reached after the addition of 35.6 ml. Equation: HC2H3O2 + NaOH _____> NaC2H3O2 + H20 Calculate the % by mass/vol. of acetic

1. acid-base titrations

   For each of the following circumstances, indicate whether the calculated molarity of NaOH would be lower, higher or unaffected. Explain your answer in each case. a.the inside of the pipet used to transfer the standard HCI solution

2. physical chemistry

   find the ph of the solution that results from the addition of 25ml of 0.1mol/l NaOH solution to 50ml of 0.1mol/l HCL solution?

3. Chemistry

   a 15.00mL sample of NaOH was titrated to the stoichiometric point with 17.40mL of 0.2340M HCl. a) what is the molar concentration of the NaOH solution? b)calculate the grams of NaOH in the solution.

4. Chemistry

   1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving 8.75 moles of sodium chloride in enough water to produce a solution of 6.22l. 2. You have a sample

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