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How many grams of dry NH4Cl needed to be added to 1.50L of a 2.00M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.60? Kb for ammonia is 1.8e-5
Solving this question helps the student to understand how to find the limiting reactant and how much product is produced and What mass of product may be produced?
A 1- flask is filled with 1.20 g of argon at 25 C. A sample of ethane vapor is added to the same flask until the total pressure is 1.25 atm.
A chemist wants to make 5.5L of a 0.280M CaCl2 solution. What mass of CaCl2 (in g ) should the chemist use?
An individual's blood alcohol content (% alcohol in blood as measured mass per volume = mass of alcohol per volume of blood) was 0.15. If we assume the individual drank all of the alcohol at once
Metallic magnesium reacts with steam to produce magnesium hydroxide and hydrogen gas. If 17.1 g of Mg are heated with 9 g of H2O, what is the limiting reactant.
explain from the orientation of the reagents why only the trans-isomer is formed.
how many liters of o2 can be made from 342g H2o2 if the density of o2 is 1.428g.
A 12.0 gas cylinder has been filled with 5.40 moles of gas. You measure the pressure to be 5.00 atm. What is the temperature inside the tank? Express your answer numerically in degrees Celsius.
2 FeS + 3 N2 → 2 FeN + 2 SN2 This reaction has a 65.0% yield. How much N2 is consumed if 13.6 g of FeN are produced?
How many L of N2 gas are produced at STP when the airbag inflates if the airbag contains 132g of sodium nitride?
Deionized water from the wash bottle is used to wash the side of the erlenmeyer flask. how does this affect the reported molar concentration of the Na2H2Y solution
What is the final concentration of a solution made from 7.8 mL of 0.92 M CuSO4 and 14.5 mL of water?
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