Cheistry

9 results

cheistry

What is the fromulat for copper (II) sulfate?

CHEISTRY

WRITE THE RATE EQUATION FOR N2O2---->2NO

Cheistry

How much heat is required to melt 43.5g of ice at its melting point?

cheistry

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.

Cheistry

single titration was performed which required 11.82 ml of .1 M Na2S2O3 the density of the original undiluted bleach unknown was 1.04 g/ml calculate the number of moles of ClO- in the sample titrated ClO- + 2I- + 2H+ === I2 + Cl- + H20 I2 + 2S2O2/3- === 2I- + S2O2/6-

cheistry

Fractional distillation is suitable for separation of miscible liquids with a boiling point difference of about 25 K or less. What part of fractional distillation apparatus makes it efficient and possess an advantage over a simple distillation process. Explain using a diagram.

Cheistry

When acetone is added to saturated sodium chloride, the equilibrium shifts toward the right. What is the role of acetone in shifting the equilibrium toward the right? any help would be appreciated. My TA is of no use in explaining our lab experiments. thanks

CHEISTRY

MAKING SLIME!! 1.WHEN SLIME IS ROLLED INTO LONG 4 IN PIECES AND JERKED FROM TWO ENDS DOES THE SLIME ACT LIKE A SOLID OR LIQUID? i THINK A SOLID BUT WHY? 2. IF YOU PULL SLIME AT TWO ENDS AFTER ROLLED I THINK THE SLIME ACTS LIKE A SOLID BUT I DON'T KNOW WHY? 3. HOW DOES CROSS ...

cheistry - please help!

1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40°C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation (b)Why is it important ...

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