### Explain what half reaction takes place to plate

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Electrolysis is used to gold plate jewelry made of stainless steel. a)what half reaction takes place to plate Au^3+ on a stainless steel earring? b)is the earring the anode or cathode? c)why is energy needed to gold plate the earring

#### Explain what is the molecular weight of the gas

The equilibrium pressure is measured as 0.8 atm. What is the molecular weight of the gas? 1. 138.5 g · mol?1 2. 12.5 g · mol?1 3. 3.6 g · mol?1 4. 45 g · mol?

#### Distinguish between cyclopentane and cyclohexane

Problem- Part 1) What spectroscopic technique would you use to distinguish between cyclopentane and cyclohexane. Briefly and succinctly explain how this technique would enab

#### Explain the avg molar mass and calculate standard

The molar mass of compound is measured to be 33.4, 35.2, 34.1, 33.9 g/mol in four trials. What is the avg molar mass & calculate standard deviation and %RSD for determinatio

#### A methane enters a heat exchanger at a volumetric flow rate

Methane enters a heat exchanger at a volumetric flow rate of 120.0 m3/min, at a pressure of 1.013 bar and temperature of 5.0°C. At these conditions, the specific enthalpy of

#### Calculate the change in internal energy

Calculate the change in internal energy of the following system: a 100.0-g bar of gold is heated from 25 ?C to 50 ?C during which it absorbs 322 J of heat. Assume the volume

#### What will be the ph in the titration flask

10mL of 0.1M HNO2 (nitrous acid, ka=4.0x10^-4)is titrated with a .01M KOH solution. After 10mL of the KOH solution is added,  what will be  the pH in the titration flask?

#### How to identify the hydrocarbon

On treatment of Compound D with an alcoholic solution of silver ammonium hydroxide, a silver mirror was formed within a few minutes. Identify the hydrocarbon A and Compounds

#### What is the molar mass of the acid

The volume of end point titration is 20.5ml. What is the molar mass of the acid (assuming it is diprotic and that the end point corresponds to the second equivalence point)?

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