KQuestion 12 (of 2 alue: 10.00 points 1 out of 3 attempts Enter your answer in...
KQuestion 3 (of 12) 3. value: 10.00 points 3 attempts left Check my work Enter your answer in the provided box. At 46°C a sample of ammonia gas exerts a pressure of 3.01 atm. What is the pressure when the volume of the gas is reduced to one-fifth of the original value at the same temperature? atm eBook & Resources References
Enter text to search No results alue: 2.90 points 13 attempts left Check my w Enter your answer in the provided box. Calculate the molar solubility of AgI in 1.4 M NH3. 0.000053 Type here to search
KQuestion 19 (of 19) value 1.10 points 15 attempts left Check my work Enter your answer in the provided box. Henry's law constant for CO, at 38o C is 2.28x 10 mol /L atm. Calculate the pH of a solution of CO2 at 38°C in equilibrium with the gas at a partial pressure of 6.25 atm.
3 attempts left Check my work Enter your answer in the provided box. A sample of chlorine gas occupies a volume of 823 mL at a pressure of 609 mmHg. Calculate the pressure of the gas (in mmHg) if the volume is reduced at constant temperature to 215 mL. Enter your answer in scientific notation. mmHg
3. value 10.00 points 1 out of 3 attempts Enter your answer in the provided box. Find the pH of a buffer that consists of 0.37 M NH3 and 0.12 M NH4CI (pKb of NH3 -4.75)
alue 1.00 points 9 attempts lef Check my work A patient receives 9.0 ng of a radioisotope with a half-life of 12 hours. How much will remain in the body after 2.96 days, assuming that radioactive decay is the only path for removal of the isotope from the body? Enter your answer in the box provided. ng Multipart Answer Difficulty Medium O Type here to search
connect CHEMISTRY KQuestion value: 0.55 points 3 out of 5 atte Enter your answer in the provided box. Calculate AH rn for the following: SiO2(s) + 4 HF(g)-→ SiF4(g )-2H20(1) AH,-[SiO2 (s)--910.9 kJ/mol SH, [HF (g )]=-273 kJ/mol ΔΗ/[H2O (1)]--285.840 kJ/mol 3084 6 kJ References Book & Resources
HW 1c Question 2 (of 8) value: 10.00 points 1 out of 3 attempts Enter your answer in the provided box. Assistance The "normal" lead content in human blood is about 0,40 part per million (that is, 0.40 g of lead per million grams of blood). A value of 0.80 part per million (ppm) is considered to be dangerous. How many grams of lead are contained in 6.0 x 10 g of blood (the amount in an average adult) if...
3 attempts loft Check my work Enter your answer in the provided box. A sample of carbon monoxide occupies 9.31 L at 293.0 K and 752 torr. Find its volume at-41°C and 413 torr.
Question 10 (of 15) alue: 00 points 3 attempts left Check work my Enter your answer in the provided box. A buffer solution is prepared in such a way that the concentration of propanoic acid is 1.92 x 10 Mand the concentration of sodium propanoate is 1.51 x 10 M. If the buffer equilibrium is described by C2HCOOH(aq) + H,O) H0 (aq) + C2H2COO (aq) propanoic acid propanoate ion with K, 1.34 x 10, calculate the pH of the solution....