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A dull grey metallic looking substance which weighed 3.6 g was burned in air completely to produce 13.2 g of a gas with the following properties. It quinched a burning flame, and it was heavier than air g it would sink down to the bottom of a container it was also found that the same quantity of mass of oxygen (O2) Consumed by burning the 3.6 g of substance if combined with exactly 12 grams of hydrogen gas, produced 10.8g of water.
What was the mass(g) of molecular oxygen from the air that combined with the substance to produce the dense gas?
What is the ratio of the weight of oxygen burned to the weight of the dense gas produced?
Given the molecular mass of the water h2o is 18amu per molecule g or g mole what is the molecular mass of the dense gas?
What is the molar composition of the dense gas and it's chemical formula?
What is the element name and identity and atomic mass of the grey substance
A compound of molecular weight 280 g/mol a concentration of 15.0 micrograms per ml absorbs 65 percent of radiation at a certain wavelength in a 2 cm cell.
Determine At what temperature does C 6 H 6 boil when the external pressure = 470 torr?
A particular brand of gasoline has a density of 0.737 at 25C . How many grams of this gasoline would fill a 13.3 tank?
Which of the following substances can act as a Bronsted acid in aqueous solution? (Select all that apply.)
Which of the following is not true regarding social development?
Need to calculate the heat formation of products, but have heat of formation for NaCl of concentration 1mol/L.
The standard cell potential for the electrochemical reaction is 1.10V. Calculate the cell potential if the concentration of zinc ion and copper ion are 0.050M and 5.0M respectively at room temp.
how many grams of sodium acetate must be added to 1.00 L of a .200 M acetic acid solution to form a buffer of 4.20? Ka value for acetic acid is 1.8x10^-5.
Herbigon will be soluble at the concentration needed to kill weeds. What pH must the solution have to yield a solution in which the concentration of X+ is 6.00×10?3M ? The pKa of acetic acid is 4.76.
if 0.200mole of NaOH is added to 1 liter of solution that is 0.100M in aqueous ammonia and 0.200M in ammonium chloride how much does the Ph change.
28.98 mL of a 0.1962 mol/L EDTA solution is required to titrate a sample to the equivalence point. How many moles of divalent metal cations were in your sample?
Application of ideal gas law - How high can you raise the temperature of the gas without bursting the vessel?
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