Moles = number of paper / avagadro number
= 861 / ( 6.022*10^23 )
= 1.43 * 10^-21
If you have any questions please comment
If you satisfied with the solution please rate it thanks
Correct Consider the following definitions 1 doz= 12 1 gross = 144 1 ream = 500...
Consider the following definitions. 1 doz = 12 1 gross = 144 1 ream = 500 1 molmol = 6.022×10236.022×1023 Suppose you have 861 sheets of paper. a. How many dozens of paper do you have? b.How many gross of paper do you have? c.How many reams of paper do you have? d.How many moles of paper do you have?
EXTRA CREDIT/BONUS QUESTIONS 1) One ream of paper is defined as 500 sheets of paper. a) Is this an exact or inexact relationship? Explain. b) Fill in the blank with the correct value. 1 ream of paper = sheets of paper c) In the space below, write the 2 conversion fractions (or conversion factors) that can be constructed from the equality in part 'b'. 2) One ream of paper has a mass of 2.27 x 10°grams a) Is this an...
Consider the following reaction: CH3OH(9) CO(9)+2H (9) AH = +90.7kJ AH = 130 kJ Previous Answers Correct Part For a given sample of CH,OH the enthalpy change on reaction is 185 kJ How many grams of hydrogen gas are produced? I AED ROO? Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part D What is the value of AH for the reverse of the previous reaction? AED ROO? AH. Submit Previous Answers Request Answer X Incorrect;...
Part A 1 mole of K+ Express your answer as an integer. O AED 0 2 ? Submit Previous Answers Request Answer * Incorrect; Try Again; 3 attempts remaining Part B 3 moles of OH Express your answer as an integer. AEP → O ? Submit Request Answer Part
at the gym, you expend 210 kcal riding the stationary bicycle
for 1 hour. How many miles of ATP will this require?
Part A How many moles of ATP will this require? Express your answer using two significant figures. IV AED = 0 a ? 7.3 moles Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide Feedback
✓ Correct The following diagram represents the reaction of A2 (red spheres) with B2 (blue spheres): (Figure 1) - Part 6 Figure How many moles of product can be made from 1.0 mol of B2? Express your answer using two significant figures. YAXDO ? mol Submit Previous Answers Request Answer X Incorrect; Try Again: 5 attempts remaining
Review Constants Periodic Table Express your answer numerically in dozens. View Available Hint(s) There are several common counting units: 1 dozen = 12 1 score = 20 1 ream 500, and • 1 gross = 144 The mole (mol) is a counting unit used by chemists, much like the dozen is a counting unit used by bakers: 1 mol = 6.022 x 1023 5.00 1021 dozen Submit Previous Answers Correct Part B How many moles of silver atoms are in...
need A & C
Part A Calculate the volume of 1.32 mol of liquid water at a temperature of 20 °C (at which its density is 998 kg/m?) Express your answer in meters cubed. 10 AED O ? 24.11 Submit Previous Answers Request Answer * Incorrect; Try Again: 4 attempts remaining Part B Calculate the volume occupied by 1 32 mol of steam at 200 "C. Assume the steam is at atmospheric pressure and can be treated as an ideal...
please answer both
Part B 27.03 g CH20. in 1.12 L of solution E AO M= 0.14 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Review your calculations; you may have made a rounding error or used Part 35.0 mg NaCl in 104.4 mL of solution 10 AED O ?
The variable resistor (R) in the circuit in (Figure 1) is adjusted for maximum power transfer to R. Suppose that P=256 X Incorrect; Try Again: 3 attempts remaining Part 6 Figure What percentage of the total power developed in the circuit is delivered to R, found in partA? Express your answer using three significant figures. 1 of 1 V AED vec RO? % delivered = 40 160 Submit Previous Answers Request Answer 400 V 180 C 200 V X Incorrect:...