Answer:
identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously. After a certain amount of time, it was found that 6.23 mL of O2 had passed through the membrane, but only 3.85 mL of of the unknown gas had passed through. What is the molar mass of the unknown gas
identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously. After a certain amount of time, it was found that 6.23 mL of O2 had passed through the membrane, but only 3.85 mL of of the unknown gas had passed through. What is the molar mass of the unknown gas
Explanation:
identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously. After a certain amount of time, it was found that 6.23 mL of O2 had passed through the membrane, but only 3.85 mL of of the unknown gas had passed through. What is the molar mass of the unknown gas
<u>Answer:</u> The correct answer is 3500 miliseconds.
<u>Explanation:</u>
We are given a quantity of 3.5 seconds and we need to convert it into miliseconds.
To convert it into miliseconds, we will use the conversion factor:
1 second = 1000 miliseconds
Now, converting 3.5 seconds into miliseconds:
3,5 seconds = 3.5 × 1000 = 3500 miliseconds
Hence, the correct answer is 3500 miliseconds.
Answer:
Independent Variables
Explanation:
These are changes that are made by the experimenter. They are factors that one is able to manipulate or control their values.
Answer:
6.32g
Explanation:
The mass of 1 mol of K is 40g, and the reaction needs 2 moles of K to produce 2 moles of KCl, so it needs 80g of K to produces 151g of KCl.
So you make a rule of three:
x = 3.35•151/80
x = 6.32g
Physical changes occur when objects or substances undergo a change that does not change their chemical composition. This contrasts with the concept of chemical change in which the composition of a substance changes or one or more substances combine or break up to form new substances.