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Problem- When the reddish brown mercury (II) oxide, HgO, is heated, it decomposes to its elements, liquid mercury and oxygen gas:
HgO(s) ? Hg (l) + O2 (g)
Part 1- If 2.00g of mercury (II) oxide is decomposed, what is the mass of mercury liquid produced?
When lead(II) nitrate is added to an aqueous solution of sodium iodide, a precipitation reaction occurs that removes the iodide ion from solution.Pb(NO3)2 (aq) + NaI (aq) ? PbI2 (s) + NaNO3 (aq)
Part2- If a solution contains 7.00g of NaI, what mass of lead(II) nitrate should be added to remove all of the iodide ion from solution?
Explain the each and every step in detail for help
Question- When 4.32 g of HgO (s) forms from its elements how much heat (in kJ) is involved. Take standard heat of formation of solid mercury(II) oxide as - 91 kJ/mol
How many moles of Ammonia gas can be produced from reacting 4.5 Moles of Nitrogen gas
Consider the combustion reaction: CH4(g) + O2(g)= CO2(g) + H2O(l) is this an exothermic reaction. If 100g of CH4 is burned, calculate the heat exchange (balance the equation).
Which of the subsequent elements have two unpaired electrons and consequently are paramagnetic
A solid object is made of two materials, one material having density of 2.4 g /cm3 and the other having density of 8.6 g/cm3. If the object contains un-equal masses of the materials (75/25), what is its average density
Calculate the vapor pressure of water above a solution prepared by dissolving 37.0 of glycerin () in 135 of water at 343 . (The vapor pressure of water at 343 is 233.7 .)
when 100 ml of an aqueous solution containing 1.0 g of caffeine is extracted with 10 ml of chloroform at room
How many grams of methane gas (CH4) are in a 15.8 liter sample at 1.2 atmospheres and 27°C? Show all work used to solve this problem.
What is the pH of a buffer prepared by adding 0.809 of the weak acid HA to 0.305 of NAH in 2.00 L of solution. The dissociation constant Ka of HA is of is (5.66 X 10^{-7})
A steel rigid tank contains 6kg of water (liquid-vapor) at 60 degrees Celcius with a volume of 0.5 m3 (State 1). The tank is now slowly heated until its pressure reaches 6 MPa. (State 2) - Determine the temperature of the steam in State 2, in degre..
Patients with a high body temperature are often given "alcohol baths." The heat of vaporization of isopropyl alcohol (rubbing alcohol) is 159 cal/g. How much heat is removed from the skin by the evaporation of 190g about 1/2 cup) of isopropyl alco..
if you burn 1.5 mol C3H8 according to the following reaction C3H8 +5O2 = 3CO2 + 4H2O how many grams of carbon dioxide are produced.
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