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E. Sodium-24 (t - 15 h) is used to study blood circulation. If a patient is injected with an aqueous solution of 2*NaCl that has an activity is 2.5x10° d/s (disintegrations per second). Given hat the disintegration of "Na follows first order kinetics, how much of the activity is present in he patient's blood after 4.0 days
A reaction of 22.85 g of sodium hydroxide with 20.82 g of hydrogen chloride produces 10.29 g of water and x g of sodium chloride
What is the polarity of soap and other surfactants?
Increase in temperature will increase the rate of the reaction; this was stated by Arrhenius and is obtained from Van't Hoff isochore
When platinum catalyst is introduced in the container the rate of reaction will increase
When platinum catalyst is introduced in the container the rate of reaction will increase
Pure iron may be produced from the reactions of iron (III) oxide (Fe2 O3) and carbon dioxide (CO) . The other proucts of the reactions is carbon dioxide ( CO2) Fe2O3 + 2Fe + 3CO2
a. How many grams of Fe2 O3 are needed to completely consume 1.5 molecules of CO?
b. How may moles of Fe can be obtained from 100grams of Fe2O3?
3. Sodium metal reacts with hydrogen to form sodium hydride (NaH). 2Na + H2 to 2NaH
If 10grams of Na reacts with 8grams of H2, How many grams of the products will be formed? Which reactant limiting?
Sulfuric acid ( H2SO4) is use in the production of phosphate fertilizer. The reaction is:
Ca3 (PO4)2+3H2SO4 to 3CaSO4 + 2H3PO4, How many grams of the two products are formed in 10.0 moles of H2SO4 is reacted with enough calcium phosphate [ Ca3 (PO4)2) ?
