What mass of nitrogen is obtained
Ammonia can be decomposed to give 3 parts by mass of hydrogen and 14 parts by mass of nitrogen. What mass of nitrogen is obtained if 1.27g of ammonia is decomposed?
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An environmental chemist needs a carbonate buffer of pH 10.00 to study the effects of acid rain on limestonerich soils. How many grams of Na2CO3 must she add to 1.5 L of freshly prepared 0.20 M NaHCO3 to make the buffer? KA of HCO3- is 4.7 x 10-11
The rate constant for the first order decomposition of a compound A in the reaction 2A=P is k= 2.78*10-7|s at 25oc. what is the half- life of A?
Effect of acidic water on strength of soil used to store the water. The reduction in strength at various acidic pH values. Importance of retention time of acidic water in Lagoon with earthen bunds with respect to reduction in strength of the soil.
In the non-inertial CS fixed at the top of the vertical member, the motion of the point A is different than the motion calculated in an inertial CS. Give a differential equation for the position of A in this NICS.
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 7.0 M HCl is required to react completely with 8.00 g of magnesium?
On a summer day when the wind speed in 3 m/s, a tank truck loaded with liquid chlorine is involved in an accident that results in a small split in the tank and a leak of 30 kg/min at the top of the tank.
Its melting point is 962°C, and its heat of fusion is 11.3 kJ/mol. What quantity of heat, in joules, is required to change 7.50 g of silver from solid at 25°C to liquid at 962°C?
A 290ml flask contains pure helium at a pressure of 756torr . A second flask with a volume of 480ml contains pure argon at a pressure of 713torr .If the two flasks are connected through a stopcock and the stopcock is opened, what is the total pre
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