A 100mM/L solution of Free-chlorine stock solution was used to make up 6 standard solutions (known concentration). See the table below with gives the test tube number, the amount of stock solution used and the amount of distilled water used to make up these solutions. Table 1: Concentration of Standard Solutions

Test tube

Free-chlorine standard (100. mM)

(mL)

Distilled water

(mL)

Free-chlorine concentration

(mM)

0

0.00

10.00

0

1

1.00

9.00

10.0

2

2.00

8.00

3

4.00

6.00

4

6.00

4.00

5

8.00

2.00

Use the M1V1 = M2V2 formula where M1 is the molarity of the stock solution, V1 is the volume of stock solution, and V2 is the final volume of the solutions (10.00 mL) to calculate the concentration of Free-chlorine in each of the 6 solutions. Record the calculated numbers into the table above. Ex: Test tube 0

M1= 100. mM V1 = 1.00 mL V2 = 10.00 mL

(100. mM) (1.00 mL) = M2 (10.00 mL)

M2 = 10.00 mM
(there's also a screenshot of the problem if that's easier)

During metamorphic processes, increased pressure and temperature can affect the of minerals in rock. rocks subjected to very high pressure are typically than others because mineral grains are squeezed together, and the atoms are more closely packed. during metamorphic processes, water facilitates the transfer of ions between and within minerals, which can the rate at which metamorphic reactions take place. the growth of new minerals within a rock during metamorphism has been estimated to be about per million years. metamorphism is commonly associated with convergent plate boundaries, where two plates move toward each other. during contact metamorphism, a large intrusion will contain thermal energy and will cool much more slowly than a small one. metamorphosed sandstone is known as the metamorphic rock made from metamorphosed shale, was once used to make blackboards for classrooms.

What is the most important factor in determining climates.

98 points you will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. before you conduct your experiment, you need to form a hypothesis. a hypothesis is a prediction of what you think will happen in the experiment. the hypothesis is a statement that describes “if” a certain set of circumstances are present “then” there will be a specific result that will occur. record your hypothesis here: record the results from step one of the experiment (dropping the objects in the air): first trial: second trial: third trial: record the results from step two of the experiment (dropping the objects in a vacuum): first trial: second trial: third trial: did the experiment support your hypothesis? using the data from your experiment, describe why you believe your hypothesis was either proven or disproven. what forces were acting on the objects dropped in the air? what force was acting on the objects dropped in the vacuum? part two: comparing forces choose two forces and compare and contrast these forces. you must provide two ways that they are alike and two ways that they are different. you may make a list, write in paragraph form, or make a chart. choose two forces and compare and contrast these forces. these must be different forces than used in the prior question. provide two ways that they are similar and two ways that they are different. you may make a list, write it out, or make a chart.