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What weight of hydrogen is needed to produce 51.0grams of ammonia? Ammonia can be produced industrially by the Haber process. The chemical reaction is 3H2 (g) + N2(g)-->2NH3(g).
What is the percentage yield of usable frosting when a particular recipe can make 225 grams of chocolate frosting? However, the cook cannot get the last 5.00grams in the mixing bowl.
When 3.00 grams of KClO3(s)is decomposed according to the reaction 2KClO3 2KCl(s) +3O2(g) what weight of oxygen is produced?
Determine the delta S (system) for reversibly cooling an ideal monatomic gas from 298K to 273K under constant-volume conditions. Discuss is this an increase or a decrease in the randomness of the s
Determine how many seconds does it take to deposit 2.87 g Ni on a decorative drawer handle when13.1 A is passed through a Ni(NO3)2solution?
What is the final temperature of water in the container if 50 g of ice and 85 g of water are at equilibrium in an insulated container? 47 kJ of heat are del =ivered to this mixture via
Explain how much plaster of Paris--(CaSO4)2* H2O-- could be made from the ton of gypsum if conversion was complete?
What fraction of the drug remains in the body after 13.0 hr if a no steroidal anti-inflammatory drug is metabolized with a first-order rate constant of 3.25 /day?
Determine the mathematical expression for the half-life of a second order reaction? Determine a pseudo-noble gas configuration? Give an example of one ion from Group 3A (13) that has it.
Determine the resolved shear stress in the slip direction when a certain crystal is subjected to a tensile stress of 1.00 MPa with the normal to the slip plane of 75° to the tensile axis and th
An oxygen-containing compound which shows no IR peaks at1630-1780 or at 3200-3550 cm-1 is likely to be what type of compound.
If you could, discuss what is being oxidized and what is being reduced using the half-reactions, too?WO3(s) + (x/2)H2 (g) --> ??? ( HxWO3(s), but ifso what's the charge)
Determine how many moles of Selenium are produced when 300 g Selenium tetrachloride reacts with magnesium yields selenium magnesium chloride.
An aqueous solution of CN- is basic. Write down the chemical equation for the reaction that generates OH- ions. Does the acidity of a cation decrease, increase, or remain unchanged as the positive cha
Place two Styrofoam cups inside one another and place lid on top/Insert thermometer into the colorimeter, add 50mls of cold water to cup and record temp.
Place two Styrofoam cups inside one another, Place lid on top and insert thermometer into the colorimeter, Add 50mls of cold water to cup and Record temp, Add 50mls of 60degree Celsius water to cup/
The cell type that is responsible for maintaining bone once it has been produced is the Explain what are the maintenance cells in bone tissue?
Determine how many moles of carbon monoxide form at the same time that 0.246 mol CS2 produces? Determine the numbers of mole SO2 are needed to make the 118 mol CS2?
Write down the net equation for the formation of precipitate when the following sets of solutions are mixed. Calcium chloride & ammonium phosphate
Explain why is it important that a chemical equation be balanced? Explain when balancing a chemical equation, can you adjust the number that has been subscripted to a substance?
What is the standard molar internal energy of formation of NH3 (g) when the standard molar enthalpy of formation of NH3 (g) is -46.11 kJ/mol.
Determine how many milligrams of iodine will sublime into an evacuated 1.00-L flash? What will the final pressure be when 2.0 mg of I2 is used?
Calculate how many grams of product should be produced. Put 1gram of copper in the crucible/Place crucible in ring support /Heat over Bunsen burner
Compute the freezing point of the mixture (in oC) when the homemade ice-cream is frozen by the churning it in a bucket suspended in an ice-water-salt mixture. A typical mix calls for 2.30 kg o
The X-Y phase diagram is shown in the attached figure. The two metals X and Y are soluble in each other at all proportions both in the liquid state and in the solid state.