A piece of iran, which has a specific heat capacity of 0.452 J-g1. C, with a mass of 54.3218 g is heated in a water bath until it reaches a temperature of 98.2 C. The iron is then transferred into a coffee-cup calorimeter made of nested Styrofoam cups that contains 68.5314 g af water initially at 22.1 °C. The final temperature of the entire system is 27.5 °C. Based on this information, determine the calorimeter constant C for this particular calorimeter in J-C. Recall that the specific heat capacity of water is 4.184Jg.C.

Q: alculations of Unknown % artial Pressure of CO2 (mmHg) ortial Pressure of CO2 (atm) oles of CO2…

A: The pressure that a gas, in a mixture of gases, would exert if it alone occupied the whole volume…

Q: Calculate the mass change in grams bf the copper and nickel electrodes. mass change of copper…

A:

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Step : 1             The required answer for the question is follow as :

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.700 M Zn(NO:)2 reacts with 17.5 mL of…

A:

Q: Use the References to access important values if needed for this question. (A) A sample of oxygen…

A:

Q: 8 of 11 I Review Constants Periodic Table Part A You go out to dinner and the bill comes to $…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: An oxidizing agent, X+, reacts with a reducing agent, Z, to give X and Z3+. What is the equilibrium…

A:

Q: long path acb, 100 J of heat flows into the system and the system does OJ of work. (a) How much heat…

A: The energy change during a process is always conserved. The internal energy is a state function; it…

Q: Consider the equilibrium equation N₂(g) + H₂(g) → NH3(g) +94 kJ. The equilibrium law expression for…

A:

Q: A human hair is 75 um across. How many inches is this? STARTING AMOUNT ADD FACTOR ANSWER RESET *( )…

A:

Q: The distance between the centers of two oxygen atoms in an oxygen molecule is cm. What is this…

A: A question based on units of measurement. The interatomic distance of Oxygen molecule is given in…

Q: create  Cp against time on linear graph paper Log Cp versus time on linear graph paper Cp against…

A: The first one is a linear plot of the Cp versus versus time. A smooth decline in concentration with…

Q: A particular beer is 6.50% ethanol by volume (C₂H₂O). If a single bottle of beer contains 750.0 mL…

A:

Q: from highest to lowest, 4 being the lowest. use 1-4 for the answers please

A: We have to rank the following substances according to their boiling point in decreasing order of…

Q: When you are doing addition and subtraction, my chemistry text tells me to round to the least number…

A: Rule: Properly examine the decimal portion only. Find the number with the minimum number of digits…

Q: Step 3: Each successive approximation uses the value from the previous approximation. 7.90 x 10-5 =…

A:

Q: He will do this in three steps: • Fill a 750.0 mL volumetric flask about halfway with distilled…

A:

Q: ) Identify each of the following half-reactions as either an oxidation half-reaction or a reduction…

A: Given : We have to write complete balance redox reaction.

Q: This was sent back.  It is a chemistry sig problem in freshman chemistry   Why is 1376 - (2.4x102)=…

A: No, there is no need to look at the last sig fig while adding or subtracting. There are certain…

Q: Pre-Lab Questions (continued) Complete the rules for determining significant figures after…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: 2 CH3CH2NH2

A: An organic chemistry based problem, which is to be accomplished.

Q: Do question 1.5 from the problem 1 only. And complete question 3 as well.

A: See the answer below Explanation:

Q: For each of the species given, decide whether it is more like or a nonpolar solvent (like hexanes…

A:

Q: A. CALIBRATION OF THE CALORIMETER Mass of copper Mass of water Temperature of copper (boiling water,…

A:

Q: When multiplying 981.9 by 7.22, the result on the calculator is 7089.318. Round the answer to the…

A:

Q: 3) An industrial chemist is studying small organic compounds for their potential use as an…

A: Given: mass of solute = 0.243 g volume of water = 25.0 mL Freezing point of solution = -0.201 oC…

Q: Arrange the values according to magnitude. Greatest     Least Answer Bank 7.1×10−6 3.3×10−2 52000…

A: 7.1 * 10-6 = 0.0000071, 3.3 * 10-2 = 0.033, 52000,  9.0 * 10-6 = 0.0000090,  2.2 * 105 = 220000

Q: Three students each added equal volumes of pond water to four ch beaker in a different water bath.…

A: As temperature increases the average heart rate of water flea increases linearly as noticed by the…

Q: The Bay of Fundy in Nova Scotia, Canada is reported to have the largest tides in the world with high…

A:

Q: A chemist must prepare 800.0 mL of potassium hydroxide solution with a pH of 12.40 at 25 °C. She…

A: Solution

Q: 3.32 x 10- g to micrograms Express your answer to three significant figures and include the…

A: Given : Value in grams = 3.32 X 10-5 g

Q: Draw a graph of [A₂] vs. time, over the span of 20 minutes. Using a different color or a dashed…

A: The given reaction is  A2 + B2 ↔ 2AB Initial concentration of both A2 and B2 is 4 M after 10 minutes…

Q: Density Lab (Need help plotting this graph) How to plot this graph from the data sheet (see picture…

A: Density is given by,                Density = Mass/volumeFrom the given table, they will ask to find…

Q: 1. The following graph illustrates the distribution of kinetic energy of molecules at a certain…

A: A catalyst is a material or a substance which helps in the alteration of reaction rate. It may…

Q: 20,18,2,4,15,15,10 Using these data, construct a 80% confidence interval for the average net change…

A: A confidence interval for a population mean with a known standard deviation is based on the fact…

Q: The surface temperature on Venus may approach 739 K. What is this temperature in degrees Celsius?…

A: Two numerical problems based on conversion of units of temperature, which is to be accomplished.

Q: Which beaker is hotter? Which beaker contains more heat? 1 calorie = the heat required to raise 1 g…

A: To predict which of the given beaker is hotter.

Q: Calculate pH for a weak acid/strong base titration. Determine the pH during the titration of 62.9 mL…

A:

Q: Constants | Periodic Tables Complete the third row. Express your answer using two significant…

A: Formula used :-  pH = -log[H+]  pH + pOH = 14  pOH = -log[OH-]

Q: Label the y-axis temperature (℃). Have the y-axis go from -20℃ to 120℃ and have the intervals go by…

A: Graph is a good way of expressing the data in a more convenient manner. Here we can represent data…

Q: 10. The molecular weight of vincristine, a pharmaceutical drug, is 923.04 g/mol. It is supplied in a…

A: Vincristine is a chemotherapeutic drug used for the treatment of various cancer. Molarity is defined…

Q: ARE significant ARE significant are NOT significant are ambiguous 1. Zeros at the end of a number…

A: Significant figures are also known as significant digits.Significant figures are digits that show…

Q: (0.0050 x 28000.0) + (2819 × 15) Express your answer to the appropriate number of significant…

A:

Q: A chemist dissolves 252. mg of pure nitric acid in enough water to make up 350. mL of solution.…

A: The mass of nitric acid is = 252. mg The mass of nitric acid is = 252 x 10^-3 g The volume of the…

Q: During exercise when the body lacks an adequate supply of oxygen to support energy production, the…

A: This is a buffer solution so use buffer equation and get the answer