Iron crystallizes in a body-centered cubic structure. The volume of one Fe atom is approximately 8.35 multiplied by 10-24 cm3, and the density of Fe is 7.874 g/cm3. Calculate an approximate value for Avogadro's number.
A1 Calculate the wavelength of (a)A Ford Mondeo of mass 2.5 tonnes travelling at 38 m s-1 (= 85 mph; no Ford Mondeo ever travels slower than this). (b)A satellite of mass 75 tonnes travelling at 2.25 x 106 m s-1.(c)A proton travelling at 95% of the speed of light.A2(a)Write down the Rydberg...
Concentrated hydrochloric acid is 38% HCl by weight and has a density of 1.19 g/mL. A solution is prepared by measuring 63 mL of the concentrated HCl, adding it to water, and diluting to 0.900 L. Calculate the approximate molarity of this solution from the volume, percent composition, and density.
calculate the pH of a solution made by dissolving o.190 mol of HC2H3O2 and 0.355 mol NaC2H3O2 in water to produce 125 ml of soluion.?
since the fired cruicible is handled with oily fingers AFTER its mass measurement.&since subsequently in part b, the oil from the fingers is burned offit was never weighed before or after heatingit has no effect
Can you help me with these questions? I have no idea how to set any up.
1. Sodium phosphate, Na3PO4, is sold over the counter for use in households as a cleaning agent and a degreaser. (13 points)a. Is sodium phosphate is an ionic compound? What does this mean in terms of structure? Given its structure, would you calculate the atomic mass, molecular mass, or formula...