Solve Urgent
Plot the freezing point of water is 0°C and 32°F respectively. The boiling point of water is 100°C and 212°F. Using this information, develop a conversion formula between the Celsius and Fahrenheit scales, expressing the formula in terms of Celsius temperature and Fahrenheit temperature. 20 points
Perform the following arithmetic operations and report the result to the proper number of significant figures: (a) 317.5 mL + 0.675 mL, (b) 47.80 L - 2.075 L, (c) 13.5 g ÷ 45.18 L, (d) 6.25 cm × 1.175 cm, (e) 5.46 × 10^2 g + 4.991 × 10^3 g. 20 points
Determine the numbers of protons, neutrons, and electrons in each of the following isotope species: (a) _(17)^(35)Cl, (b) _(17)^(37)Cl, (c) ^(41)K, and (d) carbon-14. The atomic number of K is 19 and for C is 6. 20 points
Combustion of a 5.50 g sample of benzene produces 18.59 g of CO2 and 3.81 g of H2O. Determine the empirical formula and the molecular formula of benzene, given that its molar mass is approximately 78 g/mol. Tip: oxygen is not part of benzene's formula. The necessary molar masses are CO2, 44.01 g/mol; H2O, 18.02 g/mol; C, 12.01 g/mol; H, 1.008 g/mol and O, 16.00 g/mol. 20 points
Urea (NH2)2CO is a by-product of protein metabolism. This waste product is formed in the liver and then filtered from the blood and excreted in the urine by the kidneys. Urea can be synthesized in the laboratory by the combination of ammonia and carbon dioxide according to the equation:
NH3 + CO2 -> (NH2)2CO + H2O
Applying the examples discussed over lecture (a) Calculate the amount of urea that will be produced by the complete reaction of 5.25 moles of ammonia. (b) Determine the exact amount of carbon dioxide required to react with 5.25 moles of ammonia. N: 14.01 g/mol 20 points
