Chemistry Answers

Its about avogadro's law for gases..

If the ratio of masses in a container of O2 and N2 is 1:4. Then the ratio of there molecules will be..?

A) 7:32

B) 32:7

C) 4:1

D) 1:4

E) none

Its about grahams law..

4g of H2 diffuses from a vessel in 5 minutes. How much SO2 will diffuse from same vessel in 5 minutes?

A galvanic cellis applied by the combination of fe rodimmersed in feso4 solution of concentration 0.25M

Assume that the area that a pheromone can be sensed is a cylindrical air space. Calculate the volume of this air space assuming a radius of 0.500 mi and a height of 40.0 ft.

A galvanic cell is constructed by immersely of cu rod in cuno3 solution of 0.01M and ag rod in agno3 solution of 0.1M

27.5 yd to centimeters

IF YOU START WITH 50N G OF IRON III OXIDE,AND 25 G AL, WHAT IS THEMAXIMUM MASS OF ALUMINUM OXIDE THAT COULD BE PRODUCED? HOW MUCH AL OXIDE WOULDNBE PRODUCED IF HE YIELD IS 93%

A student performs an experiment to determine the density of a sugar solution.  She obtains the following results:  1.27 g/mL, 1.29 g/mL, 1.28 g/mL, and 1.29 g/mL.  If the actual value for the density of the sugar solution is 1.86 g/mL, which statement below best describes her results?

Calculate the volume of concentrated (18.0 mol/L) HNO₃ needed to dilute to make 250 mL of 0.40 mol/L HNO₃ solution

What mass of chromium (111) nitrate is contained in 250mL of a 0.450mol/L solution?