Chemistry, 18.03.2020 22:25 princesincer6630
Question 13 A chemistry student must write down in her lab notebook the concentration of a solution of sodium hydroxide. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution:
The label on the graduated cylinder says:
Empty weight = 2.2g
She put some solid sodium thiosulfate into the graduated cylinder and weighed it. With the sodium thiosulfate added, the cylinder weighed 19.440g. She added water to the graduated cylinder and dissolved the sodium thiosulfate completely. Then she read the total volume of the solution from the markings on the graduated cylinder. The total volume of the solution was 50.29 mL.
What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant digits.
Answers: 2
Chemistry, 21.06.2019 21:30
Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass
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Chemistry, 22.06.2019 02:30
Asa choose the correct set of reaction coefficients to properly balance the following chemical equation according to the law of conservation of mass: __s8 + __o2 ==> __so2 1, 1, 8 1, 8, 1 1, 8, 8 8, 1, 1
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Question 13 A chemistry student must write down in her lab notebook the concentration of a solution...
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