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you dissolve 6.55g of potassium nitrate in enough water to make a 250ml solution. if you add 1.25 l of additional water to this solution.what is the molarity of this new solution.

following equilibrium system with a Kc of 1.23E-03: C3H6O (aq) + 2C2H6O (aq)--> C7H16O2 (aq) + 2H2O (l) 1.What is the equilibrium expression for this system? 2.If the molar concentrations of C3H6O2 and C2H6O are both 0.255 at equilibrium, what is the equi...

following equilibrium system with a Kc of 1.23E-03: C3H6O (aq) + 2C2H6O (aq)--> C7H16O2 (aq) + 2H2O (l) pleas check to see I answer these correclty.. 1.Is this an endothermic- or exothermic reaction, as written?answer: Exothermic 2.How would the equilibri...

Please check this for me..thank You have a 4.0 L steel tank containing hydrogen gas. You are able to heat or cool the tank and meaurse the pressure of the gas. 1.If you immersed in this solution a semi-permeable sack containing another solution of potassi...

You dissolve 6.55 g of potassium nitrate in enough water to make a 250. ML solution. 1.What is the molarity of this solution?answer:0.0262 2.If you took out 15.0 mL of this solution, how many moles of potassium nitrate would you have?answer:0.393 3. What...

Just made it a new post didn't what it to get overcrowning.I hope this will help us figure out now For questions #1 through #10, refer to the following equilibrium system, with a Kc of 1.23E-03: C3H6O (aq) + 2C2H6O(aq)----> C7H16O2 (aq) + 2H2O (l) 1. What...

You have a 4.0 L steel tank containing hydrogen gas. You are able to heat or cool the tank and meaurse the pressure of the gas. 1.If the temperature is 25degree and the pressure is 3.5 aim ..How many grams of hydrogen does the tank contain. 2.at what temp...

I AM STILL CONFUSE..FOR THE FIRST I CAME OUT WITH .40 BUT FOR NUMBER 2 I STILL CAN FIGURE OUT THAT ONE..PLEASE HELP

unbalanced chemical reaction equation: CaCl2 (aq) + b Na3PO4 (aq)----> c Ca3 (PO4)2(s) + d NaCl (aq) iF I start with 3.50 g calcium chloride (and sufficient sodium phosphate), what is my theoretical yield of calcium phosphate?

I am try to follow the example but lost.. cant figure out how they got that 420

can you check to see I did it right. 1.[C3H6O][C2H6O]2/[C7H16O2] 2.2.04E-06

Plese check: thank u. 1.[C3H6O][C2H6O]2/[C7H16O2][H2O]2 2.8.00E-05

This is what I did..please check it 1.P1V1=P2V2 P=6.55/250=.0262 2.V=P*V1/V2 P=6.55*15.0/250=.393 3.P=PV2V PP=6.55/250=.0262

I have to use the equation above:following equilibrium system with a Kc of 1.23E-03: C3H6O (aq) + 2C2H6O (aq)--> C7H16O2 (aq) + 2H2O (l) to complete the problems..this is what my teacher gave me to go on..So can u please help me out.. Tell me if I am go i...

DID I DO IT RIGHT NOW 1.M=6.55*1mol/101gn=.065 .065/250=.260 2.m=6.55g*15.0=.89 so this mean I need to use the full 250ml 3.6.55/250*100=2.62

I hope this will help us figure out now For questions #1 through #10, refer to the following equilibrium system, with a Kc of 1.23E-03: C3H6O (aq) + 2C2H6O(aq)----> C7H16O2 (aq) + 2H2O (l) 1. What is the equilibrium expression for this system? [C7H16O2]/...

correctly for #2 is 98.25