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O 12.01 Question 6 5 pts 1.8 moles of H2O2 has a mass of: 33.3 amu...
1.8 moles of H2O2 has a mass of: 33.3 amu 1.85 g 33.3g 35.9 g O 62.9 g
Nr of moles of C= mass of C/ molar mass of C Molar mass of C =12.o1 g= A In this case, A has measure unit in grams. But measure unit for A is Dalton or amu. Is the measure unit for A Dalton, amu, or grams? When I compute No of moles for carbon , I use A= 12.01 g, not A=12.01 amu. For exemple: for mass of C=24 g C Molar mass for: CO= A for C +A...
Question 7 5 pts What is the formula weight of KCI? 74.55 amu 66.42 amu 0 36.00 amu 1386 amu
Question 9 1 pts What is the mass defect of 114Be? Particle Mass (amu) 11 Be 11.0216 P 1.00728 on 1.00867 0.00055 -0.1055 amu O-1.685 amu -0.0704 amu 04.1051 amu оо 0.1707 amu
help with All 8 questions please
Question 13 2 pts How many moles of carbon are there in 19.3 g of sucrose, CH120.? Use 180.16 g/mol as the mw of ose. Give your answer three decimal places. su Question 14 3 pts A sample of C6H12 has 34.5 g of carbon. How many moles of CH 12 are there? Use 12.01 g/mol as the mw of carbon and 84.16 g/mol as the mw of C6H12. Give your answer to three...
QUESTION 7 How many moles of oxygen are produced by decomposing 85.5 g of H2O2 (molar mass = 34.0 g/mol) according to the equation: 2H202 -- ----> 2H20 + O2 O 1.056 mol O2 O 610 mol O2 2.11 mol O2 Onone of these QUESTION 8 In the reaction : 3Cl2 + 6NaOH ------> 5NaCl + NaClO3 + 3H20 How many grams of sodium chloride can be produced from 46.6 g of NaOH? 56.7 g NaCl 81.7 g Nai 68.1...
5 pts Question 4 A mixture of 0.75 moles of H2S. 0.40 moles of H2, and 1.25 moles of S2 are placed in a 10.0L container. Which of the following statements is true if the following reaction has a Ke value of c.40 x 108 at a temperature of 750°C? 2 H25 (8)2H2(g) + S2 (8) The reaction shifts to the right to establish equilibrium The reaction is already at equilibrium The value of K will change as the reaction...
O 1.8 Question 4 1 pts Planet X has a mass of 6.39 1023 kg and it orbits 2.08 x 108 km from a star with a period of 687 days. What is the angular momentum of the planet around its star? Answer in units of kg m2/sec. Due to its large distance from its star, you can treat the planet as a point mass in its circular motion around the star. O 1.61 x 1039 O 2.93 x 1039...
Calculate the atomic mass of the chromium-54 nucleus in amu (to three decimal places) assuming that the mass of a nucleon is 1.008 amu and the binding energy per nucleon is 1.326x10-2 J/nucleon (1 kg = 6.022x1026 amu) amu 1 2 3 4 5 6 7 8 9 +/- 2 3 23 5 6 7 W Q w 8 9 E 1 O R T Y C A O S P D G H J к Z L C V...
Need help slolving questions 1-6 please!
Mass A Moles A Moles B Mass B Molar mass A Molar mass B Ratio from balanced equation 1. How many moles of H2 can be made from complete reaction of 3.0 moles of AI? (5 pts) Given: 2 Al(s) + 6 HCl(aq)-2 AICI, (aq) + 3 H2(aq) 2. How many grams of water are made from the reaction of 4.0 grams of hydrogen gas? (10 pts) Given the reaction: 2H,(8) +0,(8) 2.0(g) 3....