Which of the following salts are correctly named?      i. Na2SO4 ; sodium sulfate     ii. KNO3 ; potassium nitride     iii. Fe3(PO3)2 ; iron(II) phosphite

How much oxygen is generally transported in combination with hemoglobin in red blood cells?

If 0.916 g of N2 is released into an empty 3.52 L flask at 56.0°C, what would the pressure in the flask be?

A particular shade of yellow light has a wavelength of 589 nm. What is the energy of a photon of this light?

What is the electronic geometry for ICl4 +?

A person considered an insider of the company whose securities were traded is liable under Rule 10b–5 if the trade was made on the basis of material nonpublic information about the company.

Dalaba swings a small block of mass M = 5.0 kg in a horizontal, circular path on a frictionless surface from a spring. One end of the spring is fixed to the center of the circle and the other end is fastened to the block, as seen in the figure. The relaxed length of the spring is 25 cm, which then stretches to a total length of R = 30 cm during the circular motion. If Dalaba measures an angular speed of ω = 3.5 rad/s, what is the spring constant for the spring k?

Calcium hydroxide reacts with hydrochloric acid according to the equation shown below. If 27.32 mL of calcium hydroxide reacts with 45.23 mL of 0.253M HCl, what is the concentration of the calcium hydroxide? Ca(OH)2 (aq) + 2 HCl (aq) ––> CaCl2 (aq) + 2 H2O (l)

Calculate the frequency of light emitted from a hydrogen atom when an electron falls from the n=5 level to the n=1 level. 

Although it is important that ozone, O3(g) be found in the upper atmosphere, it is a pollutant at ground level. The EPA measures ozonecontent in air with the following reaction. O3 (g) + 2 NaI (aq) + H2O (l) → O2(g) + I2(aq) + 2 NaOH (aq) How much sodium iodide would be needed to remove 0.682 g of ozone from an air sample?