Chemistry, 28.01.2022 14:00 tremainewoodley3030
How can you determine the volume of a gas from the number of moles of a gas (at STP)? Use the pattern you identified in the data table to find the mass of an 89.6 L sample of helium. Helium has a molar mass of 4.0 g/mol.
Answers: 2
Chemistry, 21.06.2019 21:40
During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that apply. all of the copper dissolved. all of the aluminum dissolved. the solution turned clear. the number of grams of copper(ii) chloride used in the reaction was greater than the number of grams of aluminum. the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation’s molar ratio.
Answers: 2
Chemistry, 22.06.2019 18:00
Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 3
Chemistry, 22.06.2019 19:00
Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²
Answers: 2
How can you determine the volume of a gas from the number of moles of a gas (at STP)? Use the patter...
Physics, 12.03.2021 15:50
Physics, 12.03.2021 15:50
Computers and Technology, 12.03.2021 15:50
Biology, 12.03.2021 15:50
Biology, 12.03.2021 15:50
Mathematics, 12.03.2021 15:50
Mathematics, 12.03.2021 15:50