Question

In: Chemistry

Complete the table: C^6H^12O^6 ---> 17.4 needs mole and number of particles Pb ---> needs mass...

Complete the table: C^6H^12O^6 ---> 17.4 needs mole and number of particles Pb ---> needs mass and moles 9.80x10^21 CF^4 24.0 kg ---> needs moles and numbers of particles C ---> needs mass and number of particles 0.0408 moles

Expert Solution

Q1.

C6H12O6 = 17.4 grams

1 mol of C6H12O6 = 180 g/mol

then,

mol = mass/MW = 17.4/180 = 0.09666 moles

no of particles:

1 mol = 6.022*1023 particles

0.09666 mol = (0.09666)(6.022*10^23) = 5.820*10^22 particles

Q2.

9.8*10^21 particles of Pb,

1 mol of Pb = 6.022*10^23 partilces

mol of Pb = particles / Na = (9.8*10^21)/(6.022*10^23) = 0.016273 moles

1 mol of Pb = 207.2 g

then

0.016273 mol of Pb = 0.016273*207.2 = 3.37176 g of Pb

Q3.

24 kg of CF4 = 24000 g of CF4

1 mol of CF4 = 88.0043 g

mol of CF4 = mass/MW = (24000)/(88.0043) = 272.7139 mol

1 mol of CF4 = 6.022*10^23 particles

272.7139 mol --- (272.7139)(6.022*10^23) = 1.64228*10^26 particles of CF4

Q4.

1 mol of C = 12 g

then

0.0408 mol = 12*0.0408 = 0.4896 g of C

1 mol of C = 6.022*10^23 particles

0.0408 mol = (0.0408)(6.022*10^23) = 2.456976*10^22 particles of C

queen_honey_blossom answered 3 years ago

Particles of charge -60 E-6 C, +40 E-6 C, and – 95 E-6 C are placed...

Particles of charge -60 E-6 C, +40 E-6 C, and – 95 E-6 C are placed along the x-axis at 0.2 m, 0.4 m and 0.6 m, respectively. (a) Calculate the magnitude of the net electric field x = 0.3 m. (b) Calculate the magnitude of the net force on the +40 E-6 C charge

Part A Calculate the number of C atoms in 0.602 mole of C. Part B Calculate...

Part A Calculate the number of C atoms in 0.602 mole of C. Part B Calculate the number of SO2 molecules in 6.82 moles of SO2. Part C Calculate the moles of Fe in 2.34x1022 atoms of Fe. Part D Calculate the moles of C2H6O in 3.97x1024 molecules of C2H6O.

a.) Two identical particles of charge 3 μμC and mass 6 μμg are initially at rest...

a.) Two identical particles of charge 3 μμC and mass 6 μμg are initially at rest and held 3 cm apart. How fast will the particles move when they are allowed to repel and separate to very large (essentially infinite) distance? b) Now suppose that the two particles have the same charges from the previous problem, but their masses are different. One particle has mass 6 μμg as before, but the other one is heavier, with a mass of 48...

12) Two identical particles of charge 6 μC and mass 4 μg are initially at rest...

12) Two identical particles of charge 6 μC and mass 4 μg are initially at rest and held 4 cm apart. How fast will the particles move when they are allowed to repel and separate to very large (essentially infinite) distance? Answer: Last Answer Hint: The particles are identical, so you can assume that the scenario is symmetrical. Use energy conservation: What type of energy is stored in the system when the particles are near each other and at rest?...

6. What are the three bits of information that the t table needs in order to...

6. What are the three bits of information that the t table needs in order to use it? 10. a. Perform a test with the following scores: Population mean = 94, M=100 and the SEM=7. b. Consult the t table to obtain a critical value for the outcome using an alpha level of α=.05, for a two tailed test and with a degree of freedom of df=7. c. Would the t value you got be significant if doing a true...

The Bloomington Police Department needs at least the number of officers listed in the table below...

The Bloomington Police Department needs at least the number of officers listed in the table below during each 4-hour period of the day. Police officers can be hired to work 8 or 12 consecutive hours. Police officers receive $ 12 an hour for each of the first 8 hours they work, and collect $ 15 an hour for each of the next 4 hours they work. Formulate a PL that is used with the daily needs of police officers in...

Use Charles's law to complete the table. (Assume pressure and number of moles of gas to...

Use Charles's law to complete the table. (Assume pressure and number of moles of gas to be constant.) Part V1 T1 V2 T2 A 119 L 10.2 ∘C __ 106.4 ∘C B __ 135 K 173 L 314 K C 2.15 L 16.4 ∘C 2.23 L __ D 15.6 cm3 __ 18.2 cm3 10.1 ∘C A&B Express the volume in liters to three significant figures. C&D Express the temperature in degrees Celsius to three significant figures.

Complete the function, MycountWords in C++, which will count the number of words in a string....

Complete the function, MycountWords in C++, which will count the number of words in a string. We will have different word separators(such as newline(\n), spaces, special symbols(? | \ , . : ;) ) That will separate the words in the giving istringstream. Remember if a words is separated by a hyphen and followed by a new line, they're still one word. The function has an option to be sensitive to case and also avoid duplicates. for duplicates, this is...

Joe’s Pizza Palace needs a C++ program to calculate the number of slices a pizza of...

Joe’s Pizza Palace needs a C++ program to calculate the number of slices a pizza of any size can be divided into. The program should perform the following steps: A. Ask the user for the diameter of the pizza in inches. B. Divide the diameter by 2 to get the radius. C. Calculate the number of slices that may be taken from a pizza of that size if each slice has an area of 14.125 square inches. D. Display a...

Complete the table using the figures provided for the three products: A, B and C. Last...

Complete the table using the figures provided for the three products: A, B and C. Last month’s budget for sales Product Cost price Sale price Budget sales last month Total costs on sales Budget profit last month Profit % per item on sale price # $ per item on sales A $7.50 $12.00 500 $6,000 $3,750 $4.50 $2,250 38% B $9.25 $17.00 400 $6,800 $3,700 $7.75 $3,100 46% C $10.00 $30.00 300 $9,000 $3,000 $20.00 $6,000 67% Total 1,200 $21,800...