Answer is: the molarity of the solution is 0.336 M.
m(Ca(NO₃)₂) = 127 g; mass of calcium nitrate.
n(Ca(NO₃)₂) = m(Ca(NO₃)₂) ÷ M(Ca(NO₃)₂).
n(Ca(NO₃)₂) = 127 g ÷ 164.1 g/mol.
n(Ca(NO₃)₂) = 0.77 mol; amount of calcium nitrate.
V(solution) = 2300 mL ÷ 1000 mL/L.
V(solution) = 2.3 L.
c(Ca(NO₃)₂) = n(Ca(NO₃)₂) ÷ V(solution).
c(Ca(NO₃)₂) = 0.77 mol ÷ 2.3 L.
c(Ca(NO₃)₂) = 0.336 mol/L; molarity of the solution.
1. New moon, waxing gibbous, Full moon, and waning crescent are the main ones but there are more.
2. The revolution of the Earth is 365.25 days while the revolution of the moon is 28 days. Also, the Earth orbits the sun while the moon orbits the Earth and vaguely orbits the sun due to the orbit of the Earth.
3. Tidal waves, seasons, and the lunar cycle.
4. Moonlight is light that is reflected off the moon's surface that comes from the sun. This "lights" the moon up. Sunlight is light that comes from the sun which is made by a bunch of chemical reactions.
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For two things to dissolve, they have to have similar properties. "like dissolves like"
hexane is a hydrocarbon molecule. this means it is nonpolar. water is polar. since they are different, they don't mix to form a solution
Answer:
The independent variable influences change in the dependent variable whether the points on the scatterplot go up or down from left to right.
Explanation:
To determine the percentage yield, do the following:
- Write the balance equation
- Determine the limiting reactant
- Calculate the theoretical yield
- Calculate the percentage yield (Option A)
<h3>What is stoichiometry?</h3>
Stoichiometry simply defined the relationships of the various quantities as they react in a chemical reaction
Scientist are mostly inquisitive and as such may want to determine the percentage yield of a reaction even before carrying it out.
<h3>How to determine the percentage yield</h3>
To determine the percentage for a given reaction, we must set up the following:
- Write the balance equation
- Determine the limiting reactant
- Calculate the theoretical yield
- Calculate the percentage yield
From the above, we can conclude that option A gives the right steps if we must successfully determine the percentage yield of a reaction.
Learn more about stoichiometry:
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