10/18/22

Determine if the following salt is neutral, acidic or basic.
Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous... more
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10/18/22

What is the pH?
What is the pH of a 0.340 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?
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10/17/22

How many milliliters of a 4.00M FeBr3 stock solution are needed to prepare 55mL of 1.25 M FeBr3 solution?
How many milliliters of a 4.00M FeBr3 stock solution are needed to prepare 55mL of 1.25 M FeBr3 solution?
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10/17/22

Equilibrium concentration
For the reaction: SO2Cl2(g) SO2(g) + Cl2(g), K = 2.99 ×10−7 at 500 K.If a reaction mixture initially contains 0.35 mol SO2Cl2 in a 2.00 L flask, what is the equilibrium concentration of Cl2 at 500 K?
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10/15/22

Ba(NO3)2, Mg(NO3)2, and AgNO3
Let's say that you start with an aqueous solution of various compounds and you want to separate them. The strategy consists of choosing a chemical that will selectively precipitate one component of... more
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10/14/22

Introduction to Chemistry
Explain, using Valence Bond Theory why a C-O bond is stronger than a C-Br bond?
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10/13/22

Question Below..
The substances nitrogen monoxide and hydrogen gas react to form nitrogen gas and water. Unbalanced equation:  NO (g) + H2 (g) N2 (g) + H2O (l) In one reaction, 54.2 g of H2O is produced. What... more
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10/13/22

Question below..
The unbalanced equation for the reaction between propane (C3H8) and oxygen gas is shown below.Balance the equation (enter the smallest integer possible in each box, including the integer "1" when... more
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10/13/22

The compound cobalt(II) bromide is a strong electrolyte. Write the transformation that occurs when solid cobalt(II) bromide dissolves in water. Be sure to specify states such as (aq) or (s).
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10/13/22

The compound magnesium chromate is a strong electrolyte. Write the transformation that occurs when solid magnesium chromate dissolves in water. Be sure to specify states such as (aq) or (s).
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10/13/22

I HAVE A LAB DATA SHEET TO COMPLETE HELP ME SOLVE THIS

Task: Balance each equation in the mechanism below that shows the formation of ozone (O3) in the atmosphere. Note: some of the equations below may already be balanced! (i) In the first step,... more
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10/13/22

How many moles of ZnF2 are in 0.230 L of a 0.1125 M ZnF2 solution?

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10/13/22

How much water?
How much distilled water must be added to 0.5 mL of 0.1 M FeCl3 to make it 0.001 M FeCl3 (in units of mL)?
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02/02/21

Aluminum has a specific heat of 0.897 J/gºC. A piece of aluminum absorbs 5000 Joules of energy and undergoes a temperature change from 100 ºC to 200ºC. What is the mass of the aluminum?
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02/25/20

What is the empirical formula of a compound composed of 72.36 % Fe and 27.64 % O by mass?
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02/24/20

Using the Heat Equation

How much energy would it take to heat a section of the copper tubing that weighs about 585.0 g , from 13.74 ∘C to 21.17 ∘C ? Copper has a specific heat of 0.3850 (J/g)⋅∘CExpress your answer to four... more
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11/22/19

What is the new pressure of the gas in the ball
A gas at STP fills a soft rubber ball to a volume of 6 L. If the ball is heated to 47 0C, the volume of the ball increases to 8 L.
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11/05/19

What is the concentration of a phosphoric acid solution of a 25.00 mL sample if the acid requires 42.24 mL of 0.135 M NaOH for neutralization?
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10/21/19

What is the enthalpy of this reaction?
A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 132 g of solution. The reaction caused the temperature of the solution to rise from... more
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10/20/19

At 150 degrees Celsius, four of these substances are gases, and one is a liquid. Which one is the liquid?
A) CH4B) HOCH2CH2OHC) CH3OHD) CH3CH3E) CH3OCH3
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10/20/19

Calculate the mass in grams of 4.43 X 10^24 molecules of formaldehyde. The chemical formula for formaldehyde is CH2O.
Mass= __________________ g
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10/08/19

Write the balanced NET ionic equation for the reaction when strontium chloride and sodium phosphate are mixed in aqueous solution. If no reaction occurs, write only NR.
I am just confused because I don't know where to start? we went over it in class but I still have no idea how to get to the part where we cancel the repeats to get the net ionic equation.
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09/30/19

Balance the chemical equation NiS(s)+O2(g)→NiO(s)+SO2(g)
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