The student obtains the answer through the following calculation: answer=7.379×10^−4 m^3×(100 cm/1 m)^3×19.3 g/cm^3 For the above calculation, identify each value as one that is...

The student obtains the answer through the following calculation: answer=7.379×10^−4 m^3×(100 cm/1 m)^3×19.3 g/cm^3 For the above calculation, identify each value as one that is...

i need help. i think the answer is 1.15 but that is not right. 2.07/1.80= 1.15

I need help with this chemistry question please? Silly me didn't copy fast enough when my instructor was working on the problem on the board & was also focusing how he was solving it as well....

Balance and then write the net ionic equation. I know that (aq) stands for dissolved water NH4CL (aq) + Mg (OH)2 (aq) -> MgCl2 (aq) + NH3 (g) + H2O (l...

So the question is.... How many Joules of energy will be needed to heat 128.0g of water 0.00 degrees Celsius to 283.08 degrees K. I keep getting 5320 J while my friends...

Question: I have 275 gal of water. Ca concentration is 100mg/L. How much CaCl2 is needed to be added for Ca to become 200mg/L? I understand that you should convert mg to grams, and...

The question is what is the weight of Orange (590 nm) in nanograms (ng)? What is the answer to the question and how would you find this?

I was wondering if you could help me come up with a proper answer for this question. I took a test and have no idea what I did wrong and the teacher will not help. I redid the problem and do not know...

Calculate the molarity of the solution created when 50.0mL of 0.132M NaOH is mixed with 75.0ml of 0.120M NaOH( assuming that volumes are additive)

If you hold up a test tube that is being “lit up” by white light and your eye tells you it's purple, how is the input white light being changed?

-FeSO4 -ZnBr2 -Mn(OH)2 -CsBr -CCl4 Please select all that are true!

A standard iron sample with concentration 26 mg/L gave a transmittance reading of 52.8%. What is the concentration of an unknown iron sample if its transmittance is 61.7%?

What is the molarity and molality of the solution ?

I am trying to find the moles of NaOH in the lab I did. Its asking for the the moles of NaOH in the source and final solution. Info: Beaker B : Volume of preceding solution taken:...

Question #1 At a certain temperature, the equilibrium constant Kc is 0.154 for the reaction 2SO2 (g) + O2 (g) <--> 2SO3 (g) What...

nano3 cacl2 h2co3 li2so4 c3h8o3 c6h12o6 c12h22o11 co(clo)2 ph3 *all numbers are subscripts

If 2 moving steel balls collide, their total energy after the collision is the same as before. This is an example of... A) boyle's law B) the law of gravity C) an elastic collision or D) both charle's...

To dissolve the Ca(NO3)2 Please show me steps on how to solve this. Im so confused

help with chem 127

I'm doing an assignment for chemistry class and on one of the questions its asking me for the conductivity of solid, and conductivity of water solution for the following substances: Sodium...