Question 21 (of 23) Calculate the number of mol of tungsten represented by 1.39 x 10atoms...
Calculate the volume of a 0.150 M KCl solution containing 6.00 x 10-2 mol of solute. Enter your answer in the provided box. L Calculate the number of mol of solute in 3.00 x 102 mL of 0.500 M HCI. Enter your answer in the provided box. mol HCI mol HCI
Calculate the number of moles of vanadium represented by 4.27 × 1024 atoms of vanadium. Enter your answer in the provided box.
E connect Physical Science Related To Chemi Chem 1000-S17: 2020-02 CHEMISTRY Question 22 (of 23) How many nickel atoms are present in 6.2 moles of nickel metal? Give your answer in scientific notation. Enter your answer in the provided box. x 10 elect) atoms of NI MacBook Air
Calculate the number of mol corresponding to 0.076 kg Si. Enter your answer in the provided box. 1 mol Si
E connect Physical Science Related To Chemi Chem 1000-S17: 2020-02 CHEMISTRY am #2 Question 23 (of 23) 23. How many tin atoms are present in 6.8 moles of tin metal? Give your answer in scientific notation. Enter your answer in the provided box. select atoms of Sa MacBook Air
7. value 0.00 points 3 attempts left Check my work Calculate the number of mol corresponding to 19.0 g Be. Enter your answer in the provided box. mol Be value 1.00 points 3 attempts left Check my work Calculate the number of mol corresponding to 0.065 kg Si. Enter your answer in the provided box. mol Si 9. value 0.00 points 3 attempts left Check my work What is the average molar mass of the following elements? Be sure to...
Question 21 a)b)c) A(n) 8.87-mol sample of carbon monoxide was stored in a 30.0-L container at 48.5°C. What is the pressure of the carbon monoxide in the container? Enter your answer in the box provided. atm The temperature of a gas is initially 67.0°C. What temperature is needed to double the volume of the gas if mass and pressure do not change? Enter your answer in the provided box. A 30.0-L gas cylinder contains 4.90 g H, at 25°C. What...
QUESTION 48 During an interaction with an N-shell electron of a tungsten atom, an X-ray is scattered with 15 keV of energy and the electron is ejected with 11.7 keV of kinetic energy. What was the energy of the incident X-ray? Give your answer in keV, rounded to the nearest tenth. But do not include the unit - give only the number portion of your answer. Approximate Number binding of energy Shell electrons (kov) 0.3 L 4 0.01 Carbon- 37...
A sample of oxygen gas has a volume of 2.61 L at 21°C. What volume will it occupy at 147°F if the pressure and number of mol are constant? Enter your answer in the provided box.
Question 12 (of 23) - > 12. Be sure to answer all parts. Given the reaction represented by the balanced equation CH,6) +316) + 3HI(g) + CHT() Part 1: Calculate the number of g of CHI, produced by mixing 140 g 1, with excess CH- T2,4 CH Part 2 out of 2 If 49.0 g CHI, were actually produced, calculate the % yield. % yield MacBook Air