General Chemistry Answers

Given the cell notation, what is [Mn2+] if Ecell reaches 0.055 V? Mn(s) | Mn2+(aq) (0.090 M) || Cd2+(aq) (0.060 M) | Cd(s) at 30 °C

Calculate the molality of a solution containing 10.8 g of ethylene glycol (C6H6O6) in 360 g of water.

(molar mass of C6H6O6 = 62.07 g/mol)

For the production of lime, at which temperature would you employ to maximize its product yield?

Kp Temperature CaCO₃(s)⇆CaO(s)+CO₂(g) 1.9×10⁻²³ 289k 1.0 1200k

Zinc and lead (II) nitrate react to form zinc nitrate and lead

1.00 mol of SO₂

Ba + S →   

Silver nitrate solution reacts with calcium chloride solution according to the equation: 2

AgNO3 + CaCl2→ Ca(NO3)2 + 2 AgCl. all of the substances involved in this reaction are

soluble in water except AgCl, which forms a solid at the bottom of the flask. Suppose we

mix together a solution containing 6.30 g of AgNO3 and one containing 4.20g of CaCl2.

How many moles of AgNO3 are there in the given amount of AgNO3? _____

Atomic masses: Ag = 107.87, N = 14.01, O = 16.00, Ca = 40.08, Cl = 35.45

It is made up of various secondary pollutants

a 50 ml sample of .1 mol/L HCIO(aq) is titrated with .2 mol/L KOH(aq). find ph given the following volumes of added base: (Ka= 2.8 x 10-8) a) 0.0 ml b) 10.0 ml c) 25.0 ml d) 30.0 ml. show your work

If gas has a volume of 500cm^3 when pressure ia 1000meters ia exerted on it what will be the volume if the pressure is changed to 150mm on the same temperature