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I have an unknown volume of gas at a pressure of 50.50 KPa and a temperature of 325 K. If I raise the pressure to 1.2 atm, decrease the temperature to 320 K, and measure the final volume to be 48 liters, what was the initial volume of the gas?
how many grams of Cu would have to react to produce 89.5 grams of Ag?
question 1
I have a solution of 0.0670 mol of Cu(NO3)2 in 154 mL of water. I then dissolve 0.45 mol of potassium cyanide, KCN, in this solution, and it instantly turns from a pale blue colour to a pronounced dark blue, indicating the formation of the tetracyanocuprate (ll) ion, [Cu (CN)4]2- . The volume of the final solution is 155 mL. Please calculate the concentration of free (uncoordinated) Cu2+ in this solution. Show all your work, including the minor conversions and the ICE table. Write a balanced equation to begin.
Using C# and Visual Studio, design and implement a standalone command-line application that fulfils the following requirements: 1.The user shall be able to enter the following values: a. Gross monthly income (before deductions). b. Estimated monthly tax deducted. c. Estimated monthly expenditures in each of the following categories:
Question 1
a) What is the concentration of Ca2+ in a saturated solution of CaF2 in pure water, given that Ksp = 4.0 x10^-11?
Write the chemical equation for this reaction.
b) What is the concentration of Ca2+ in a saturated solution of CaF2 in 0.361 M NaF?
Write the chemical equation. SHow your use of the ICE table.
c) Without doing any calculations, would you expect the solution to be in part b) to be more acidic, basic, or neutral? Explain why it would be acidic, basic, or neutral by writing the chemical equation.
Consider the chemical reaction 2NH3(g) ⇌ N2(g) + 3H2(g). The equilibrium is to be established in a 1.0 L container at 1,000 K, where Kc = 4.0 × 10–2. Initially, 1,220 moles of NH3(g) are present. Estimate the equilibrium concentration of N2(g).
What is the (a) H+ ion concentration, (b) pH, (c) OH- ion concentration and (d) pOH of a 0.001 M solution of NaOH?
1.3. A retail Shop has a functionality to add item into the stock list. The add item takes a parameter
the Item to be added on stock. [2]
1.4 A retail shop also has a functionality to calculate total sales that returns double sum of money
made from all sold items. [2]
Are Keynes’s ideas still relevant today?”
Explain Keynes’s theory of investment and why it is central to his more general theory of output and employment. Are Keynes’s ideas still relevant today?”
