How many oxygen atoms are there in 1.55 ng of ca3(po4)2
Phosphoric acid can be prepared by reaction of sulfuric acid with "phosphate rock" according to the equation:Ca3(PO4)2 + 3H2SO4 -> 3CaSO4 + 2H3PO4How many oxygen atoms are there in 1.55 ng of Ca3(PO4)2?
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Which of the following is not true regarding social development?
What is the density of lead (in ) if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9?
Solve the following equation for m and n. You should assume that m and n are real numbers. The variable n is an angle, and you should show your units.(m+67.3j)/23?n equals 4.794 - 1.875j
Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n1 = 2 to n2 = 4. (R = 1.096776 × 107 m-1; c = 3.0 x 108m/s.
Phosphoric acid can be prepared by reaction of sulfuric acid with "phosphate rock" according to the equation:
You measured the absorbance of each solution at a 550 nm and plotted Absorbance vs. Concentration as shown below: What is the extinction coefficient of the rhodamine dye?
In a paint plant, semiautomatic mixers are normally used. It takes 8 minutes for an operator to load a mixer with the appropriate ingredients.
A sample of carbon consists of the isotopes carbon-12 and carbon-13.A sample of oxygen consists of the isotopes oxygen-16 and oxygen-17.Write the formula of all the different carbon dioxide molecules that can be formed from these samples.
Find the nonzero value of ω for which the expression for Z(ω) given is purely real. Give your answer as a function of R, L, and C. z(w) = [( R + jwL) / (1/jwC)] / [(R+ jwL) + (1/jwC)]
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