05/21/21

With this given information and the procedure, how would we write a new data table of our own "filled with our findings" without doing the experiment?

how would we collect the data we need from the experiments without doing the experiments at home? The data table below has provided data from another persons experiment . ANd now we have to make a... more

17. NEED HELP FAST

The voltage generated by the zinc concentration cell described by the line notationZn(s) ∣ Zn2+(aq,0.100 M) ‖ Zn2+(aq,? M) ∣ Zn(s)is  19.0 mV  at  25 °C.  Calculate the concentration of... more

17. NEED HELP FAST

The decomposition of a generic diatomic element in its standard state is represented by the equation12X2(g)⟶X(g)Assume that the standard molar Gibbs energy of formation of X(g) is  5.77... more

06/20/20

how are you able to tell if a compound produces many, few, or no ions when dissolved in water?

Doing an at home lab about conductivity for my chemistry online class which is separate from the current lesson being taught.. You must dissolve compounds such as NaCl, CaCl2.. etc into water and... more

12/03/19

Chemistry question pls help

Hydrogen gas was collected by water displacement. What was pressure of the H2 collected if the temperature was 24°C ?

11/23/19

How to find the molecular formula from a empirical formula with subscripts that aren't whole numbers

I am finding the formula of a compound that has 60% Carbon, 32% Oxygen, and 8% Hydrogen. Although, when it comes to actually creating the formula I end up with a subscript of 2.5 for C, 1 for O,... more

11/11/19

integrated rate law and half life

Consider again the decomposition of NO2 discussed in slides 39-41. the reaction is second order in NO2 with k= 0.543 l/Ms. If the initial concentration of NO2 in a closed vessel is 0.0500 M,... more

11/11/19

integrated rate law and half life

The decomposition of dimethyl ether, (CH3)2O at 510 degrees celcius is a first order process with a rate constant of 6.8 x 10-4 s-1 (CH3)2 O(g) -------------------------] CH4(g) + H2 (g) + CO(g)... more

10/21/19

Write the balanced equation for the positron emission from the Technetium-95 radioisotope.

Include the steps to get the answer.

10/21/19

You could add HCl(aq) to the solution to precipitate out AgCl(s). What volume of a 0.200 M HCl(aq) solution is needed to precipitate the silver ions from 14.0 mL of a 0.180 M AgNO3 solution?

Part 2:You could add solid KCl to the solution to precipitate out AgCl(s). What mass of KCl is needed to precipitate the silver ions from 14.0 mL of 0.180 M AgNO3 solution?Part 3:Given that a... more

10/18/19

Calculate the theoretical yields of HC2H3O2. and what are the percentage yields of our experiment?

Ethanol, C2H5OH, can be converted to acetic acid (the acid in vinegar), HC2H3O2 , by the action of sodium dichromate in aqueous sulfuric acid according to the following equation.3C2H5OH (aq) +... more

Chemistry: Equilibrium Math Question 5

A closed vessel is charged with 0.23 bar of hydrogen gas and allowed to react with excess I2(s) at 25 C.H2(g) + I2(s) ↔ 2 HI(g)What is the final equilibrium pressure of HI(g) in the vessel? KP = 0.284 more

10/14/19

Write the abbreviated electron configurations for Calcium and the Calcium ion. Write the abbreviated electron configuration for Sulfur and Sulfide. Determine what each ion is isoelectric with.

Calcium: _______Calcium ion:______isoelectric with:_______Sulfur:______Sulfide:______isoelectric with:_______

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