Find the mass of Cr2(CrO4)3 in the unit of amu. Show your work and express your...
Find the mass of Cr2(CrO4)3 in the unit of amu. Show your work and express your answer in regular notation with correct number of sig figs and units everywhere.
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Find the mass of
Cr2(CrO4)3 in the unit of
amu. Show your work and express your...
MUST SHOW ALL WORK TO GET THUMBS UP Naturally occurring iodine has atomic mass of 126.9045 amu. A 12.3849 gram sample...
MUST SHOW ALL WORK TO GET THUMBS UP Naturally occurring iodine has atomic mass of 126.9045 amu. A 12.3849 gram sample of iodine is accidentally contaminated with an additional 1.0070 grams of 129 I, a synthetic isotope used to treat diseases of the thyroid. The mass of Iodine 129 is 128.9050 amu. Find the apparent “atomic mass” of the contaminated iodine. (Show the math for this.) The mass of the average blueberry is 0.75 grams and the mass of an...
QUESTION 3 An atom of 108 Te has a mass of 107.929550 amu. Calculate the mass...
QUESTION 3 An atom of 108 Te has a mass of 107.929550 amu. Calculate the mass defect (deficit) in amu/atom. Use the masses: mass of 'Hatom = 1.007825 amu mass of a neutron = 1.008665 amu 1 amu = 931.5 MeV Give your answer to 4 significant figures and DO NOT use E notation. No charity points will be awarded.......
2. Balance the following reaction that occurs in acid, using the half-reaction method. I-1(aq) + CrO4-1(aq)...
2. Balance the following reaction that occurs in acid, using the half-reaction method. I-1(aq) + CrO4-1(aq) --> I2(s) + Cr+3(aq) When this reaction is balanced, there will be (A) H+(aq) and (B) H2O(l) in the final balanced equation. (Enter numbers without the plus sign.) 3. Ca(NO3)2(aq) + K2CO3(aq) --> CaCO3(s) + 2 KNO3(aq) 50 mL of 1.000 M Ca(NO3)2 was reacted with excess potassium carbonate. What mass of calcium carbonate will be made? Repeat your answer to two sig figs...
1. Mars has a surface area of 55.9 million miles2. Showing all of your work and...
1. Mars has a surface area of 55.9 million miles2. Showing all of your work and using at least four conversion steps, convert the surface of Mars to square kilometers. Report your answer to the correct number of significant figures, in scientific notation, and with correct units. 2. A fictional element has two isotopes and an atomic mass of 89.08 amu. If the first isotope is 86 amu and the second isotope has a mass of 90 amu. Which isotope...
3. What is the mass of one atom of calcium, Ca, on average? Express your answer...
3. What is the mass of one atom of calcium, Ca, on average? Express your answer in scientific notation with two significant digits. Show work. 4 pts
please show work! Question 6 3 pts On a farm, you are pushing on a stubborn...
please show work!
Question 6 3 pts On a farm, you are pushing on a stubborn pig with a constant horizontal force with magnitude F = 23.9 Ni+18.1N j. How much work (in Joules) does this force do during a displacement of 5 -5.50 m Note: Round final answer to 3 sig. fig. Do NOT write units. Write in regular notation. Do NOT write in scientific notation.
please show work. Part C Find the dimensions [v] of speed. Express your answer as powers...
please show work.
Part C Find the dimensions [v] of speed. Express your answer as powers of length (/), mass (m), and time t View Available Hint(s) 11에 Submit There are three dimensions used in mechanics: length (), mass (m), and time (t). A combination of these three dimensions suffices to express any physical quantity, because when a new physical quantity is needed (e.g., velocity), it always obeys an equation that permits it to be expressed in terms of the...
The neutron-induced fission of U-235 produces Ba-140 and Kr-93, along with 3 neutrons. Use the following atomic masses: U-325: 235.04392 amu neutron: 1.00866 amu Ba-140: 139.910581 amu Kr-93: 92.9311...
The neutron-induced fission of U-235 produces Ba-140 and Kr-93, along with 3 neutrons. Use the following atomic masses: U-325: 235.04392 amu neutron: 1.00866 amu Ba-140: 139.910581 amu Kr-93: 92.931130 amu If the US needs 1.42 x 1016 kJ of electrical energy every year (for 2018 the value was 1.44 x 1016 kJ), how many kg of U-235 would have to undergo fission to supply this energy? (You can assume 100% efficiency in the conversion of energy from the fission reaction...
9) 0.000000698 10) 12 hundredths 11) 299 792 458 12) 86 400 13) 6378 14) 0.000...
9) 0.000000698 10) 12 hundredths 11) 299 792 458 12) 86 400 13) 6378 14) 0.000 000 000 098 Geometry and Conversion of units 80cm 100cm 60cm 1) Find the volume of the right-regular box shown above. Express your wer in cubic inches. There are ans 2.54cm in one inch. C) Provide the number figures in each of the numbers. 1) 0.0000063 g Find the surface area of a sphere of ) radius 30cm. Express your answer in square inches....
How many grams of KC2H3O2 are needed to prepare 2.27 L of 0.290M KC2H3O2 solution? (MM KC2H3O2 = 98.14 g/mol) show your...
How many grams of KC2H3O2 are needed to prepare 2.27 L of 0.290M KC2H3O2 solution? (MM KC2H3O2 = 98.14 g/mol) show your work and round your answer to the correct number of sig figs
QUESTION 3 An atom of 108 Te has a mass of 107.929550 amu. Calculate the mass defect (deficit) in amu/atom. Use the masses: mass of 'Hatom = 1.007825 amu mass of a neutron = 1.008665 amu 1 amu = 931.5 MeV Give your answer to 4 significant figures and DO NOT use E notation. No charity points will be awarded.......
3. What is the mass of one atom of calcium, Ca, on average? Express your answer in scientific notation with two significant digits. Show work. 4 pts
please show work!
Question 6 3 pts On a farm, you are pushing on a stubborn pig with a constant horizontal force with magnitude F = 23.9 Ni+18.1N j. How much work (in Joules) does this force do during a displacement of 5 -5.50 m Note: Round final answer to 3 sig. fig. Do NOT write units. Write in regular notation. Do NOT write in scientific notation.
please show work.
Part C Find the dimensions [v] of speed. Express your answer as powers of length (/), mass (m), and time t View Available Hint(s) 11에 Submit There are three dimensions used in mechanics: length (), mass (m), and time (t). A combination of these three dimensions suffices to express any physical quantity, because when a new physical quantity is needed (e.g., velocity), it always obeys an equation that permits it to be expressed in terms of the...
The neutron-induced fission of U-235 produces Ba-140 and Kr-93, along with 3 neutrons. Use the following atomic masses: U-325: 235.04392 amu neutron: 1.00866 amu Ba-140: 139.910581 amu Kr-93: 92.931130 amu If the US needs 1.42 x 1016 kJ of electrical energy every year (for 2018 the value was 1.44 x 1016 kJ), how many kg of U-235 would have to undergo fission to supply this energy? (You can assume 100% efficiency in the conversion of energy from the fission reaction...
9) 0.000000698 10) 12 hundredths 11) 299 792 458 12) 86 400 13) 6378 14) 0.000 000 000 098 Geometry and Conversion of units 80cm 100cm 60cm 1) Find the volume of the right-regular box shown above. Express your wer in cubic inches. There are ans 2.54cm in one inch. C) Provide the number figures in each of the numbers. 1) 0.0000063 g Find the surface area of a sphere of ) radius 30cm. Express your answer in square inches....
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