Inorganic Chemistry Answers

The world’s largest gold bar in the toi gold museum in japan can be seen and touched by visitors. it has an irregular shape with dimensions about 17.9 in. by 8.9 in. by 6.7 inches, with a volume of 12.94 l. determine the mass and weight (1 kg = 2.205 lb).

the world’s largest gold bar in the toi gold museum in japan can be seen and touched by visitors. it has an irregular shape with dimensions about 17.9 in. by 8.9 in. by 6.7 inches, with a volume of 12.94 l. determine the mass and weight (1 kg = 2.205 lb).

The superficial mass velocity is found to be 200 lb/hr.ft2. Find its 
equivalent in kg/s.m2.

If 2.5 mols of oxygen gas was available to react with excess hydrogen, how many grams of water would be produced?

2H₂ + O₂ --> 2 H₂O

How many moles of hydrogen are required to react with 2.5 moles of oxygen to produce hydrogen oxide? Show work.

Five hundred (500) milliliters of aqueous solution contains thirty (30) milligrams of zinc nitrate (Zn(N03)2 . The density of the aqueous solution is 1 gram per milliliter (1 g/ml). The atomic masses : Zn = 65.39 , N = 14.00674 , O = 15.994 , Compute for the concentration of zinc nitrate in the aqueous solution in terms of mass fraction (mi), parts per million (ppm), parts per billion (ppb), parts per trillion (ppt), milligrams per liter (m/l) and Molarity (M).

0.5M potassium hydroxide solution is needed in the qualitative determination of anthraquinone glycosides in plants. what is the moles of solute

How many ammonia molecules are there in 0.50 ammonia moles? Overall, are these nitrogen and hydrogen atoms present?

Write balanced molecular equations for the following reactions in aqueous solution:

a) calcium + water à calcium hydroxide + hydrogen

b) barium chloride + sodium barium à sulfate sulfate + sodium chloride

In a Daniell stack the following redox reaction occurs:

Zn(s) + ^Cu2+(aq) à Zn2⁺⁽aq) + Cu(s)

a) write the oxidation and reduction semi-reactions , also indicating the electrons at stake and the oxidation numbers of the reactants and products.

b) what reaction would take place in an electrolytic cell?