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JulsSmile [24]
3 years ago
9

What is the mass in grams of 1.73 moles CaH2

Chemistry
1 answer:
Nata [24]3 years ago
4 0
Mass in grams = no. of moles multiply by molar mass
molar mass is 42 so by putting value we get 72.66 grams...
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If an element has 9 electrons, how many of them will be in the 2nd energy level?
faust18 [17]
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Sveta_85 [38]

Answer:

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7 0
3 years ago
Identify the solute and solvent in each of the solutions. A. salt ( NaCl ) (NaCl) in water salt: water: B. air (a solution of 78
stira [4]

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A) solute - NaCl, solvent - water

B) solute - O2 and other gases, solvent - N2

C) solute - ethanol, solvent - water

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Solute(s) is/are the minor component(s) in a solution, dissolved in the solvent.

Solvent is the component of a solution that is present in the greatest amount. It is the substance in which the solute is dissolved.

If both solute and solvent exist in equal quantities (such as in a 50% ethanol, 50% water solution), the concepts of "solute" and "solvent" become less relevant, but the substance that is more often used as a solvent is normally designated as the solvent (in this example, water).

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Read 2 more answers
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