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How many milliliters of cobalt(ii) chloride hexahydrate solution were added to the flask (before dilution)? note: the volume of substances dispensed in the lab may vary.

a. 20.5 ml
b. 50.0 ml
c. 10.0 ml
d. 30.8 ml

User Davy Meers
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1 Answer

4 votes

Final answer:

Without additional information provided, it is impossible to determine how many milliliters of cobalt(II) chloride hexahydrate solution were added to the flask before dilution. Understanding molarity and dilution principles is key in such calculations.

Step-by-step explanation:

Understanding Concentration and Dilution in Chemistry

When performing experiments in a chemistry lab, it's crucial to understand concepts like molarity, dilution, and the calculation of the volume of solutions. In the provided example, we have various scenarios where solutions are either diluted or concentrated, affecting their molar concentration. Although not explicitly mentioned in the question, it's important to note that the molarity or molar concentration of solutions is expressed in moles of solute per liter of solution (M), and it’s calculated using the formula:

Molarity (M) = moles of solute / volume of solution in liters

Without knowing the exact concentration or amount of the cobalt (II) chloride hexahydrate used, it is impossible to determine which volume was initially added. Moreover, the question seems to be referencing a specific laboratory scenario that the example and the follow-up learn check questions provided do not directly address.

Since there are no calculations or additional data provided that could be used to reference the initial volume of the coblast (II) chloride hexahydrate solution added, a direct answer cannot be given. If the student has more information on the starting molarity or amounts used in their lab, these would be necessary to solve the problem.

Understanding the principles of molarity and dilution is vital for success in chemistry. These principles can be applied to calculate various solution concentrations and to perform accurate dilutions, which is essential for any kind of chemical analysis or experimental work.

User Skwisgaar
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