Other Chemistry Answers

the 5 g of zinc powder used is an excess. Calculate the mass of zinc that reacts exactly with 50.0cm3 of 1.00 mol dm

Use the balanced chemical equation for the neutralization of hydrochloric acid with calcium hydroxide to determine the concentration of the hydroxide ion, in moles per litre. (Hint: why does one not need to know the volume of one drop?) From [OH-], determine [Ca2+] in moles per litre.

How many aluminium ions will be discharged by 0.33F?[Avogadro constant = 6.02*10^23

Determine the mass of nitrogen found in 8.85g of Pb(NO3)3

Find the mass in grams of 2.00 x 10^23 molecules of F2

What is the molar mass of K-Potassium

1) Determine the oxidation number if sulfur in the SO⅔-ion and the SO²4 -ion and the use number to name Each ion.

1) Determine the oxidation number of:

a)bromine in:bromine dioxide (BrO)² the BrO-³ and BrO-ion.

b)nitrogen in: ammonia (NH)³, the NO² ion and dinitrogen monoxide (N²O)

C)carbon in:carbon monoxide (CO) CO⅔ ion, methane (CH⁴), propene (C³H6) and the HCO³-ion

How many moles of dissociated calcium chloride required to produce 2 mol of chloride ion?

If the water is muddy, alum is added to clog colloidal particles together. Alum is then known as a