Chemistry, 10.04.2020 22:32, hardwick744
A student titrates 60.0 mL of HNO3(AQ) with 0.30 M NaOH(AQ). Phenolphthalein is used as the indicator.
After adding 42.2 mL of NaOH(AQ), a color change remains for 25 seconds, and the student stops the
titration. Write a balanced equation and calculate the molarity of the of HNO3(AQ), with sig figs and units
Answers: 1
Chemistry, 22.06.2019 12:00, angtrevv
In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?
Answers: 1
Chemistry, 22.06.2019 13:50, kelonmazon2492
Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
Answers: 3
A student titrates 60.0 mL of HNO3(AQ) with 0.30 M NaOH(AQ). Phenolphthalein is used as the indicato...
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