micatkie

What normality of a solution that contains 280 grams of NaOH in 2000 ml of solution?

1 atom of Al has a mass of?

How many moles of ethyl alcohol are produced by reaction of 1.6 mol of ethyl acetate?

How many moles of lead(II) iodide (PbI2) will be produced from 2 mol of potassium iodide (KI)? 2Kl + Pb(NO3)2 ---> PbI2 + 2KNO3?

Calculate the final concentration of each of the following:?

ELLIPSE EQUATION PROBLEM!!!! I JUST NEED TO KNOW THE CENTER OR (h,k) PLS ANSWER AS SOON AS POSSIBLE?

Chemistry?

Write formula, total ionic and net ionic equations for the following reactions?

Ag+(aq) + Cl -(aq) AgCl(s) ΔH = -65.5 kJ?

What mass of baking soda would completely react with 3.8 g of acetic acid?

Update: What is the mass of carbon monoxide(CO) gas if the gas occupies a volume of 4.1 L at 2 atm of pressure and -73 degrees Celsius?

What is the theoretical yield of CO2 if 5g of C4H4 is burned in sufficient O2?

Which has the greater number of atoms: 4g of Na, 4g of He, 4g of Ne (Chemistry a level - moles)?

Calculate the number of sodium ions in 0.12 moles of Na2O??

11.78 CHEM?

Calculate the concentration of the chemist's working solution.?

How many moles of oxygen are contained in 0.0234 mol of FeSO4.7H2O?

Trigonometric proving help?

electron configuration of sodium?

how is (secx + tanx)^2 equal to (1 + sinx)/(1 - sinx) ?

HClO is a weak acid (Ka = 4.0 × 10–8) the salt NaClO acts as a weak base. What is the pH of a solution that is 0.046 M in NaClO at 25 °C?

why first ionisation energy of magnesium are smaller than beryllium?

For the chemical reaction below, determine the amount of HI produced...?

Chemistry S.O.S !?

(Physics) Friction force? Help!?

Completing the square: Solve: (x – 4)2 = 5?

What mass of carbon dioxide is produced from the complete combustion of 4.80×10−3 g of methane?

一容量為600c.c.的杯子，分別可裝下列三種液體，問哪一種液體能裝的體積最多？甲.密度為1(公克/立方公分)，乙.密度為0.8(公克/立方公分)的酒精，丙.密度為0.6(公克/立方公分)的果汁?

What molarity of KMnO4 is needed if 10.0 L of it mixed with 7.5 L of water gives a 4.50 M KMnO4 solution?

請幫我解題謝謝~~?

Solubility Question?

Chem help please!?

普化酸鹼混合求pH值問題?

Please help. Thanks.?

Chemistry help anyone? No Idea what to do?

How to find rate constant of reaction?

Solve the equation 2coshx + sinhx = 2 given that x is a real number?

HARD physics question?

Help me math problem about direct proportional (5*)?

The difference of two times a number and five is eight more than the number.?

Buffer solution (will choose best answer) (help)?

What is the image height?

A How much heat is required to melt 70.5 g of ice at its melting point?

Evaluate (x^3 - 2x)dx?

Trig Equation with Reciprocals?

http://i63.tinypic.com/1fbv6h.jpg -- Question 4 why is the answer (a)..?

How many moles of hydrogen are required?

If a force P acts directly perpendicular to a point A then what is its moment at A about P?

http://i64.tinypic.com/3321j09.jpg - Question 3.. why is the answer (b) and not (d)..?

Ch.8 Chem HELP!?