<u>Answer:</u> The volume of stock solution of calcium chloride required is 10 mL.
<u>Explanation:</u>
A solution consists of solute and solvent. A solute is defined as the component that is present in a smaller proportion while the solvent is defined as the component that is present in a larger proportion.
To calculate the amount of solute needed, the formula used is:
....(1)
where,
are the concentration and volume of stock solution of calcium chloride
are the concentration and volume of diluted solution of calcium chloride
Given values:
Plugging values in equation 1:
Hence, the volume of stock solution of calcium chloride required is 10 mL.
Carbon disulfide is prepared by heating sulfur and charcoal. the chemical equation is S2(g) + C(s) <---> CS2 (g) Kc = 9.40 at 900 K.
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All of these differences from the fifteenth century have helped forensic analysts better analyze documents than analysts in the past could.
Answer:
B. K,Ca, and Sc
Explanation:
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Answer:
Radium and Polonium
Explanation:
Marie Curie won the 1911 Nobel Prize in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes.
