Hey there!
Stock solution:
Concentracion bromide = 0.128 M
initial solution in volumetric flask = 450 µl
So , moles of bromide present:
450 µl in liters :
1 µl = = 1*10⁻⁶ liters
450 * ( 1*10⁻⁶ ) = 0.00045
0.128 * 0.00045 => 57.6 * 10⁻⁶ moles
Now volume final is 25 mL , in liters : 0.025 L ou 25*10⁻³
so new bromide concentration:
57.6*10⁻⁶ / 25*10⁻³=> 2.304*10⁻³ M
Answer:
Different liquid
Explanation:
<em>The independent variable in the investigation is the different liquid given to the plants.</em>
<u>The independent variable in an experimental investigation is the variable that is supplied by the researcher which directly affects the main variable being measured during the investigation. In other words, the independent variable is a variable that directly affects the dependent variable.</u>
In this case, the dependent variable would be growth determining factors in plants such as height, biomass, number of leaves, etc. while the independent variable would be the different types of liquid given to the plants.
Answer: Did you finish this poster?
its due today and i forgot all about it
Explanation: Ill pay on cashapp if anyone has this project
Answer:
Blood, bone, tendon, ligament, adipose, and areolar tissues are examples of connective tissues.Explanation:
Answer: 18g/mol
Explanation:
H2O = (2 x 1) +16 = 2 + 16 = 18g/mol