true or false when somethign is soluble it deissolves and forms an aqueous solution which we repreesent with (aq)

true or false when somethign is soluble it deissolves and forms an aqueous solution which we repreesent with (aq)

what is the concentration of NaCl in a solution, if titration of 15.00mL of the solution with 0.257 M AgNO3 needs 20.22 mL of the AgNO3 solution to reach the end point?

2NaN3 —> 2Na + 3N2 If you have 32 g of NaN3 using the equation above, determine: A.) What is the limiting reactant? B.) How many moles of Na and N2 will be produced? C.) What...

Heated bricks of blocks of iron were used long ago to warm up beds. A 1.25 kg block of Fe heated to 135 oC would release how much energy in calories as it cooled to 35.8oC.? (s = 0.45 J/goC

study guide

A titration of phosphoric acid with sodium hydroxide. The first equivalence point has a pH of about 5. My thoughts are that because it is only the first equivalence point, only...

A sample of a certain monoprotic weak acid was dissolved in water and titrated with 16.00mL of 0.125M NaOH to reach the equivalence point. During the titration, the pH after adding 2.00mL of NaOH...

calories as it cooled to 35.8oC.? (s = 0.45 J/goC

required to heat 0.14 pounds of CCl4 from 25.6 oC to 72.9 oC. ( S= 0.857 J/goC)

(specific heat capacity of silver = 0.24 J/goC)

[NH4Br](aq) = 0.020M , pKa of NH4+= 9.24 Given that the question is asking for pH, I know I need to find the [H3O+], so I've set up the reaction to look like this: NH4Br...

This will be a Net Ionic Equation.

A 0.347 g sample of impure NaHSO3 is dissolved in water and titrated with 0.1481 M NaOH. If 20.20 mL of NaOH is required, what is the percentage purity of the NaHSO3 sample?

If an excited H atom EMITS a 95nm photon when relaxing to the ground state, what was the principle quantum number of the excited state? a. 1 b. 2 c. 3 d. 4 e....

When a 0.560 g sample of olive oil is burned in a calorimeter, the heat released increases the temperature of 370 g of water from 22.7C to 39.1C. What is the energy value of the olive oil in kJ/g...

0.25 g of calcium nitrate is dissolved in 100 mL water. A 50 mL sample of this solution was diluted to 75 mL. What was the final concentration?

i need help with this

I need help with this question

by colourimetery

My teacher gave a question to slove I am not understanding