Answer:
Dependent and independent variables are variables in mathematical modeling, statistical modeling and experimental sciences. Dependent variables receive this name because, in an experiment, their values are studied under the supposition or hypothesis that they depend, by some law or rule (e.g., by a mathematical function), on the values of other variables. Independent variables, in turn, are not seen as depending on any other variable in the scope of the experiment in question; thus, even if the existing dependency is invertible (e.g., by finding the inverse function when it exists), the nomenclature is kept if the inverse dependency is not the object of study in the experiment. In this sense, some common independent variables are time, space, density, mass, fluid flow rate[1][2], and previous values of some observed value of interest (e.g. human population size) to predict future values (the dependent variable)[3].
Of the two, it is always the dependent variable whose variation is being studied, by altering inputs, also known as regressors in a statistical context. In an experiment, any variable that the experimenter manipulates[clarification needed] can be called an independent variable. Models and experiments test the effects that the independent variables have on the dependent variables. Sometimes, even if their influence is not of direct interest, independent variables may be included for other reasons, such as to account for their potential confounding effect.
Explanation:
Answer:
The volume would be 24, 3 L.
Explanation:
We apply the ideal gas law, we convert the unit of temperature in celsius to degrees Kelvin, we clear the volume of the formula and we use the constant R of the ideal gases that has a value of 0.082 l atm / K mol:
0°C= 273 K ---> 35°C= 273 + 35= 308K
PV=nRT ---> V= nRT/P
V= 1 mol x 0.082 l atm / K mol x 308 K/ 1 atm= <em>25, 256 L</em>
Answer:
This has some interesting History in it.
Peat moss was once pounded into a sort of brick; sometimes with a little coal, these bricks were put to dry, and used for fuel.
The “Historical” part is in the name. I won’t go into why, ‘cause I type so slow and it is “extra”, but the peat, or coal, being TRULY organic, (that is made from plants) and burned as fuel is called “carbonixation”.
Explanation: Sort of a “Carbon + Oxidation”; many things in Chemistry have strange names that seem at first to make no sense; like “essence of Hartshorn”, is Ammonia (or ammonium hydroxide). A Hart is/was a type of deer in England and that area, and amines in the horn, when distilled, would yield Ammonia, “The Essence of Hartshorn”. Even the term “aromatic” has a long History, as do many compounds and nomenclature.
I hope that will do it.
Answer:
Ce concentration = 0.0387 M
Explanation:
The given compound is: (NH₄)₂Ce(NO₃)₆
Mass = 10.6192 g
Mol. wt = 548.23 g/mol
Based on the formula stoichiometry:
1 mole of (NH₄)₂Ce(NO₃)₆ contains 1 mole of Ce
Therefore, there are 0.01937 moles of Ce in the given compound
Volume of the solution = 500.0 ml = 0.500 L
Answer:
Electrostatic attraction between oppositely charged ions
Explanation:
involve the formation of an octet of electrons in their valence shells, except for hydrogen which needs a duet of electrons