Physics, 23.08.2019 02:30, duplerk30919

Sodium hydroxide (naoh) was added to pure water (h2o). which most likely were the ph values of the water before and after the sodium hydroxide was added to it?
before = 7, after = 9
before = 7, after = 4
before = 4, after = 7
before = 9, after = 7

Answers: 1

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Chemistry, 23.07.2019 03:00, markkessler5639

When pure sodium hydroxide is dissolved in water, heat is evolved. in a laboratory experiment to measure the molar heat of solution of sodium hydroxide, the following procedure was followed. to a calorimeter containing 3.00 × 10^2 g of water at 20.00 °c, 10.65 g of naoh, also at 20.00 °c was added. the temperature of the solution, which was monitored by a digital thermometer with negligible heat capacity, increased to 28.50 °c. if the specific heat of the mixture is 4.184 j g^-1 °c^-1, and the small heat capacity of the calorimeter is ignored, what is the heat evolved, per mole of sodium hydroxide?

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Chemistry, 20.10.2019 11:30, maycigrimaldi4990

During science lab, jacob mixes together sodium hydroxide (naoh) and hydrochloric acid (hcl). the two chemicals react to form sodium chloride (nacl) and water (h2o). which of the following are reactants in the chemical reaction described above? a. sodium hydroxide and sodium chloride b. sodium hydroxide and hydrochloric acid c. sodium chloride and water d. hydrochloric acid and water

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Sodium hydroxide (naoh) was added to pure water (h2o). which most likely were the ph values of the water before and after the sodium hydroxide was added to it? before = 7, after = 9 before = 7, after = 4 before = 4, after = 7 before = 9, after = 7

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Sodium hydroxide (naoh) was added to pure water (h2o). which most likely were the ph values of the water before and after the sodium hydroxide was added to it?
before = 7, after = 9
before = 7, after = 4
before = 4, after = 7
before = 9, after = 7