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a) Fe?/Fe7/ MnO2/Mn?
1) Which tools are used to measure the CO2 concentrations present in air?
2) Which tools are used to measure the CO2 gas which is been captured?
Suppose your dorm room is 11 ft wide by 12 ft long by 8.5 ft high and has an air conditioner that
exchanges air at a rate of 1200 L/min. How long would it take the air conditioner to exchange
the air in your room once?
1.A 100 mL solution contains 5.7g MgCl2(MM = 94 g/mol). The density of the solution is 1.03 g/mL. Express the concentration in:
a.% by mass
b.Molarity
2.A 68.8 g H2SO4(MM = 98 g/mol) is added to H2O to make a 500 mL solution. If the density of the solution is 1.2 g/mL, calculate the molality.
The reaction between nitric acid and sodium hydroxide solution produce sodium nitrate salt. Describe one confirmatory test for the anion of this salt.
205 gram hydrogen sulfide reacts with 75.0 g oxygen to produce sulfur and water. Find:
a) Gram of sulfur formed
b) gram of excess reactant used up
c) gram of excess reactant that remained unreacted
A man who is 5ft 8in tall weighs 180 lbs. what is his height In centimeters
A student adds 200.0 mL of distilled water to 20.0 mL of 4.0 M sodium chloride solution.
What is the concentration of the diluted solution?
What is the mass of 0.3200 mol of silicon dioxide?
