Molar Volume of a Gas - Chemistry - Socratic
The molar volume of a gas is derived from the ideal gas law #PV = nRT#: #PV = nRT -> V = (nRT)/P -> V/n = (RT)/P# Let's say you were given a temperature of 355 K and a pressure of 2.5 atm, and asked to determine the gas' molar volume at these conditions. Since molar volume refers to the volume occupied by 1 mole, you'd get
A hole of radius r is bored through the center of a sphere of radius …
May 22, 2018 · (4pi)/3 (R^2-r^2)^(3/2) We basically are being asked to calculate the volume of a spherical bead, that is, a sphere with a hole drilled through it. Consider a cross section through the sphere, which we have centred on the origin of a Cartesian coordinate system, and assuming R gt r: The red circle has radius R, hence its equation is: x^2+y^2=R^2 Method 1 - Calculate …
How do you find the volume of a 3D trapezoid? - Socratic
Dec 17, 2015 · Formula for Volume of a Trapezoidal Prism. If the prism length is L,trapezoid base width B, trapezoid top width A, and trapezoid height H, then the volume of the prism is given by the four-variable formula: V(L, B, A, H) = LH(A + B)/2. In other words, multiply together the length, height, and average of A and B.
How do you find the volume of the solid obtained by rotating
Aug 10, 2017 · Please see below. Here is a graph of the region. I've taken a slice perpendicular to the axis of rotation. The slice is taken at a variable value of y. The thickness of the slice is dy, so we need the equations in the form x = a function of y. The curve on the left (y = sqrtx) is x = y^2 on the right is the line x = y Rotating the slice will generate a washer of thickness dy and …
How do you calculate concentration from absorbance? - Socratic
Mar 18, 2014 · You will use Beer's law. A = εmCl The basic idea here is to use a graph plotting Absorbance vs. Concentration of known solutions. Once you have that you can compare the absorbance value of an unknown sample to figure out its concentration. You will be applying Beer's law to calculate the concentration. The equation for Beer's law is: A = εmCl …
How do you use the triple integral to find the volume of the solid …
Nov 22, 2016 · Graph the solid, determine the limits of integration, then integrate. It is always useful (and usually necessary) to graph the solid you are trying to find the volume of in order to determine the limits of integration. This can be done quite easily by hand in this case. You can graph the plane by finding the intercept for each axis and then simply connecting those points. …
Percent Concentration - Chemistry - Socratic
PERCENT BY VOLUME. Percent by volume (v/v) is the volume of solute divided by the total volume of the solution, multiplied by 100 %. Percent by volume = #"volume of solute"/"total volume of solution"# × 100 %. Example. How would you prepare 250 mL of 70 % (v/v) of rubbing alcohol . Solution
How do I find the volume of the solid generated by revolving
May 19, 2018 · the rose region is revolving about the x-axis and y-axis. 1)when the shaded region revolving a bout x-axis. #Volume=piint_a^by^2*dx#
How do you get the mass with volume and no density?
Jun 26, 2016 · Well, you could always just put it onto a scale to find the mass. But assuming you aren't talking about a laboratory setting... The general formula is: \mathbf(rho = m/V) where rho is density in "g/mL" if mass m is in "g" and volume V is in "mL".
How do you find volume in a titration question? - Socratic
Aug 19, 2016 · Assuming we want to find how much base should be added to an acid with a known concentration. In the question, it should be provided the following data: Concentration of the acid: #M_a#. Volume of the acid: #V_a# Concentration of the base: #M_b# and we will need to determine the volume of the base (#V_b#) needed to titrate the acid.