Determining the percent yield of a reaction
What is the percent yield of a reaction in which 212 g phosphorus trichloride reacts with excess water to form 137 g HCl and aqueous phosphorus acid (H3PO3)?
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A Saturated solution of potassium chloride is prepared in 100.0g of water at 20C. If the solution is heated to 50C, how much more KCl must be added to obtain a saturated solution?
Give reasons for your choices. a) wood burning in a campfire b)sulfur in the air reacting with silver flatware to produce tarnish, or silver sulfide c)baking powder in cake batter decomposing to produce carbon dioxide, which makes the cake rise
The active ingredient in toothpaste is sodium fluoride, an anticavity agent. a 170 g tube of toothpaste lists the concentration of sodium fluoride a s0.24%. how many grams of sodium fluoride are in a toothpaste.
The product ethane (C2H6) has a volume of 50.0 mL. Calculate the amount of PV work done, and tell the direction of the energy flow.
Describe a procedure by which you would prepare 250 cubic centimeter of aqueous sulphamic acid of accurately known concentration.
Use the data to determine the heat of vaporization of nitrogen in kJ/mol. Determine the normal boiling point of nitrogen in Kelvin.
A pressure of 0.600 atm of nitrosyl chloride is sealed in a flask and allowed to reach equilibrium. If 27.0% of the NOCl decomposes, what is the equilibrium constant for the reaction?
calculate the molarity of acetic acid in a vinegar sample knowing that 5.00 mL of vinegar requires 43.50mL of 0.105M NaoH to just reach the phenolphtalein endpoint in a tritration.
1 mol of Ar initially at 298 K undergoes an adiabatic expansion against a pressure P external = 0 from a volume of 20.0 L to a volume of 65.0 L. Calculate the final temperature using the ideal gas and van der Waals equations of state.
Calculate the number of moles of N_2 dissolved per liter of blood, which is essentially an aqueous solution.
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analyze how Bob is dealing with identity and difference in the workplace, using information from our readings to support your point.
While the government had to focus more on the medical impacts and supply and demand of products and services, individual organizations struggled
Search for a Creative Commons image to illustrate your blog post using the Creative Commons website's search page.
Problem: What is "YOU" language?" (200 words)
Draw on elements of effective email composition and consult Chapter 7. Make sure to draft both emails and review before submission:
Purpose: To explain Oktoberfest to your boss and suggest how your company might benefit from this festival.
Part of this decline has to do with changes in customer behavior as well as smaller customer budgets. Some of the revenue loss stems from the pandemic.