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What is the concentration of an ammonium chloride solution prepared by using 0.5L of water to dissolve the product of the reaction of 1.25 L of ammonia gas at 22 degrees C and 1 atm with 5.2L of hydrogen chloride at 24 degrees C and 1 atm?
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At a given pressure and temperature, it takes 198.7 sec for a 2.6 L sample of Kr to effuse through a porous membrane. How long does it take for 2.6 L Ar to effuse under the same conditions?
Why do the instructions call for using a saturated solution of NaOH rather than one at lower concentration? Why can we ignored in the calculation of the concentration of NaOH?
Aqueous potassium phosphate was mixed with aqueous magnesium chloride, and a crystallized magnesium phosphate product was formed. Consider the other product and its phase, and then write the balanced molecular equation f ...
Diagonal relationship and anomalous behaviour of the each element of the periodic table
An aqueous solution has a normal boiling point of 102.0°C. What is the freezing point of this solution? For water K b is 0.51°C/ m and K f = 1.86°C/ m.
2 moles of a compound are allowed to react ina foam coffee cup that contains 197 grams of water. The reaction caused the temperature of the water to rise from 21 to24.7 degrees Celsius. What is the enthalpy of this react ...
0.394 mol of a solid was dissolved in 340 mL of water at 26.9 oC. After the solid had fully dissolved, the final temperature of the solution was 31.6 oC. What is the molar heat of solution of the substance?
What are the symbol and name of the element whose average atoms have a mass very nearly half the mass of an average silicon atom?
1.00 mole of sodium carbonate (formula mass 106.0) is converted to sodium chloride, Na2CO3(s) + 2HCl(aq)® 2NaCl(aq) + H2O +CO2(g). The percentage yield in this conversion is 80%.Which of the following is correct: a. 0.80 ...
How many moles of magnesium ion are present in 5.25g Mg 3 (PO 4 ) 2 ?
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