Chemistry, 25.01.2022 01:50 BackUpAccount
A solution is made by dissolving 0.40 g of solid sodium hydroxide in 250cm of water. It is found that 28.2 cm of this
solution is needed to completely neutralise a 40.0cm sample of ethanoic acid (CH3COOH) of unknown
concentration.
Calculate the concentration of ethanoic acid.
Answers: 2
Chemistry, 22.06.2019 06:30
(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.
Answers: 1
Chemistry, 22.06.2019 11:00
Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.
Answers: 1
Chemistry, 22.06.2019 12:00
Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.
Answers: 3
A solution is made by dissolving 0.40 g of solid sodium hydroxide in 250cm of water. It is found tha...
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