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I need help Sewani 1151 <EC Ch 6-7 Problem 7.30 Part A Calculate the number of...
blem 7.30 Calculate the moles of Cu in 3.5×1021 atoms of Cu. Express your answer using two significant figures. rz
Part A Use standard enthalpies of formation to calculate AH, for the following reaction: CH,OH(1) + 302(g) 2002(g) + 3 Express your answer using four significant figures. IVO ALOO ? AH...= Submit Request Answer Part B Use standard enthalpies of formation to calculate AH.for the following reaction CH,(g) + 202(g) –CO2(g) + 2H2C Express your answer using three significant figures. GOAL Oa? AH...= Submit Request Answer
Part D Calculate the number of moles of C,Hg in 2.01 x 1023 molecules of C, H. Express your answer using three significant figures. O ALDO ? moles of C,H Submit Previous Answers Request Answer Part C How many moles of sulfate ions (SO?) are present in 1.6 moles of Al2(SO4),? Express the number of moles to two significant figures. - Po A¢ * Ro ? ns0 moles
Chem 121W Fall 2019 Problem Set 16 (Ch 6) xercise 6.79 Calculate the mass percent composition of nitrogen in each compound Part A NO Express your answer using four significant figures. © A¢ Om ? mass of N = Submit Request Answer Part B NO Express your answer using four significant figures. Problem Set 16 (Ch 6) mercise 6.79 Calculate the mass percent composition of nitrogen in each compound Part C NO Express your answer using four significant figures. O...
Part A Calculate the number of C atoms in 0.987 mole of C. I A¢* o 2 ? Nc = atoms of C Submit Request Answer Part B Calculate the number of SO2 molecules in 3.11 moles of SO2. IVO AQ * O ? Nso = molecules of SO2 Submit Request Answer Part Calculate the moles of Fe in 8.93x1022 atoms of Fe. IVO AO R O 2 ? nFe = mole of Fe Submit Request Answer Part D Calculate...
CHEM 1340 Hybrid Fall 2019 <Chapter 7 Problem 7.59 For the reaction 2CO(g) + O2(g) 2002(9) the value of K at a certain temperature is 1300 Part A Calculate [0] at equilibrium when (CO2) = 0.18 mol/L and (CO) = 2 06-10-2 mol/L Express your answer using two significant figures. EVO AED RO? [0] = mol/L Submit Request Answer Part B - 0 505 mol/L Calculate Co, at equilibrium when CO=85x10 mol/L and 0 Express your answer using two significant...
can anyone figure this out ? <CH5 Problem 10.107 Assume that an exhaled breath of air consists of 74.8 %N,, 15.3 %02. 3.9 % CO,, and 6.0 % water vapor. Part A If the total pressure of the gases is 0.980 atm, calculate the partial pressure of N. Express your answer using three significant figures. O AO MO - ? atm Submit Request Answer Part B If the total pressure of the gases is 0.980 atm calculate the partial pressure...
i need help in part B <Ch 2 Problem 2.81 6 of 10 > Express your answer using three significant figures. Constants I Periodic Table t 532 A stone is thrown vertically upward with a speed cf 120 m/s from the edge of a ciff 750 m high (Figure 1) Previous Answers Correct Figure 1 of 1 Part B What is its speed just before hitting? Express your answer using three significant figures 64.1 m/S Submit Previous Answers Reauest Answer...
Assignment #1 (ch 2) Problem 2.72 Part A a magnitude of 175 Ib and the coordinate direction angles shown in (Figure 1). Determine the magnitude of F2 Express your answer to three significant figures and include the appr Pa- Value Units Submit Request Answer Figure 1 of 1 Part B Determine the coordinate direction angle ay of F Express your answer using three significant figures 130° F-80 lb 120° Submit Part C Determine the coordinate direction angle A of F2....
Need help with these and these only Exercise 1.24 Correct Part C Fnd the magnitude of he vector diference A B Express your answer using two significant figures. Submit Previous Answers Request Answer X Incorrect: Try Again; 4 attempts remaining Part D Find the direction of the vector difference A-B Express your answer using three significant figures 1マ e counterciockwise from +z-axis Submit Previous Answers Request Answer Figure </ 1of1 ) X Incorrect; Try Again; 5 attempts remaining (15.0 m)...