The silver ions in a 25.00 ml of aq solution were converted to dicyanoargentate by the addition of an excess soultion containing Ni((CN)4)2-.
Ni((CN)4)2- + 2Ag+=2Ag((CN)2)-+NI2+
Liberated nickle req
I need to know if orange juice is a mixture, pure substance, element, compound, heterogeneous mixture or homogeneous mixture.. and why it is one of those-heterogeneous mixture . Orange juice contains
food coloring is just colored water. It does sink a little bit if you put it in water.
look at mine?
http://answers.yahoo.com/question/index;…-because it has same density.-its because food coloring h
By How Much water I assume you mean mass of water.
Equation :
2H2 + O2 → 2H2O
2mol H2 will produce 2 mol water
Mol H2 in 3.17*10^24 molecules of H2
Mol = ( 3.17*10^24) / (6.022*10^23) = 5.26 mol H2
I am so stuck with this question, any help from you chemistry geniuses would be very appreciated!
275g of liquid water at 100C and 550g water at 30C are mixed together, what is the final temp?-Heat l
If I weigh 500 Newtons. How much pressure do I apply when I stand on my head, if the part of my head thats touching the floor has a radius of 2 cm?-pressure = force / area
So, find the force and area
What is the minimum voltage needed to produce a reaction in the electrolysis of copper(II) sulfate using inert electrodes?
any help would be much appreciated, thanks!-The Cathode reaction in this
But ONLY in a mixture of two or more metallic ions.-It might work as a beginning indicator, but its not terrific. Suppose you had Lithium and Strontium. Both of them burn red. What could you conclude?
Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is formed.
1. AgF(aq) and HBr(aq)
2. NaNO3(aq) and KBr(aq)
3. FeCl3(aq) and
What are the normal freezing points and boiling points of the following solutions?
(b) 13.5 g of urea in 65.6 mL of water. Calculate the freezing point and boiling point.-Calculate the molality of t
Citric acid, the compound responsible for the sour taste of lemons, has the following elemental composition: C, 37.51%; H, 4.20%; O, 58.29%.-Ok so basically youre going to pretend you have 100 grams o
A 27.00 mL sample of an H2SO4 solution of unknown concentration is titrated with a 0.1155 M KOH solution. A volume of 35.22 mL of KOH was required to reach the endpoint.What is the concentration of th
What volume in milliliters of a 0.141 M NaOH solution is required to reach the endpoint in the complete titration of a 15.0 mL sample of 0.128 M H2SO4?-2 NaOH + H2SO4 → Na2SO4 + 2 H2O
(15.0 mL H2SO4)
what is the energy of joules of a photon with frequency 9.31x10^13Hz?-E = hf
E = (6.626 * 10^(-34) Js) * (9.31x10^13 Hz)
E = 6.17 × 10^(-20) J-Energy = h x v
h is contant = 6.626 x 10^-34 J.s
v = 9.31
