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Explain this phase diagram of copper and nickel briefly
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- Weight of A (g) Weight of B (g) Sample T 7 12.5 28 25.0 25 14.0 14 37.5 14 25.0 Five samples containing elements A and B are analyzed. Four of the samples are pure compounds, the other is a mixture. Results of the analysis are given in the table shown above. Which two samples are of the same compound? (A) T and V (B) T and W (C) W and R (D) T and S EVWRSKk.100.wu.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr/J8P3)H-lQUHIQg6bJxmeSyVpHOEB1plef9xyC5Ca9QldFNDUsAt.. Tp O STATES OF MATTER 三D Calculating volume percent composition 0/5 A chemist prepares a mixture of ethanol and water at a temperature of 23.0 °C. He measures out 38.5 mL of ethanol and mixes it with 38.2 mL. He measures the volume of the solution after it is well mixed and finds that it is 73.6 mL. The density of ethanol is 079 g/mL and the density of water is 1.0 g/mL. Calculate the volume percent of ethanol in this solution. Be sure your answer has the right number of significant digits. db %(v/) 10 Ar Explanation Check 2022 MGraw Hill LLC All Rights Resurved Terms of Use Prvacy Center Accessibility 9:21 FM 378 /2022 DELL Esc F2 FS F6 F7 FB F10 F11 PrtScr Delete PgUp (PgDn F12 Insert Home End 23 $4 & Num Lock Backspace 7 E R Y P. G K Enter 5 *00
- The actual mass of a 144 Sm atom is 143.911995 amu. (Consult Appendix B for any needed reference values. Enter unrounded values for your answers.) (a) Calculate the mass defect in amu/atom and in g/mol for this isotope. amu/atom g/mol (b) What is the nuclear binding energy in kJ/mol for this isotope? kJ/mol(d) Complete the following statements: (i) The three are solid, liquid and (ii) The three scales are degree Celsius, Kelvin and (iii) Pure substances have a composition whereas mixtures have a composition. Homogeneous mixtures have a composition. When a solute is in water, the homogeneous mixture formed is called (iv) CoSO4 is whereas CoSO4:7H2O is (v) NaF(s) contains an bond. bond whereas H2(g) contains a (vi) To remove the water molecules from CUSO4 5H2O we heat the sample of this compound with a which has a blue flame and we cool the sample in a which contains silica gel. (vii) The Group 8A (Group 18) elements are collectively known as 3PROVISIONAL LEWIS STRUCTURES T01/S01 For each provisional structure, identify if it is the correct Lewis structure (C) or if it needs to be modified according to procedure MA or MB to obtain the correct Lewis structure. MA. Form multiple bonds to the central atom using lone pair on the terminal atom(s) until the central atom has an octet (or septet). MB. Form multiple bonds to the central atom using lone pair on the terminal atom(s) until the central atom has a formal charge of zero (0) or until two double bonds are formed. A provisional structure has the valence electrons distributed in order as (1) a bond between each pair of atoms, (2) an octet for each ligand (terminal) atom or ligand group (CH3, NH2 or OH) and (3) any remaining electrons on the central atom.
- (256) Malang Sajna (Video) S Significant Figures Calculator - Six Type here to search www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-lvdw7xgLCkqMfg8yaFKbD9GafJstkYLIJnuspTU6txxTOZ396sp-B_xkmco0cVWd500mjk4S42nF8fdH9EGW-KtycTAasP6... Q ● ENTROPY AND FREE ENERGY Calculating dG from dH and dS 4PF, (g) + 10H₂(g) P4 (s) + 20HF (g) A chemical engineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 53.0 °C and constant total pressure. Then, she measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. CH₂(g) + 20₂(g) → CO₂(g) + 2H₂O(g) ALEKS - Rafia Riaz - Learn Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then,…10. Which of the following does not match the others? (A) 67.2 3.88 1000 100 (B) (C) 1s 2s 2p (D) ofelectrons1 Which is NoOTa property Used to identity substances? A Density B. Electrical Properties C Mase 2.2A/company cotects eans to recyciel Some cans aremade'of álumntniumn and others are ade of steel What pitysical property couldbeused to separata and classfy the differerit tyses of cans?* O A Magnetism O B Shape C Size DSolubility
