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I diluted a solution of 10mL to a final volume of 1L. The final concentration was 0.05M. What was the original concentration?
Problem: What ion is measured to determine the pH of a solution?
Problem: The substance in which something is dissolved to make a solution is called?
Question: How many electrons are in the outermost shell of an atom with 16 electrons?
Problem: What is the chemical definition of reduction?
Problem: Which statement describes how chemical elements move through an ecosystem?
Construct the reaction scheme for this reaction involving the enzyme lactase. The reaction scheme needs to contain the following letters P1, P2, S, E, ES
Problem: Can you give an example and experience of chemical scarification? And what it's important.
One person in your group may hold the pi meter while another takes the pl reading. What is the initial pH of this solution?
Problem: How many grams are in 8 mol of HCl?
How are ionic bonds, covalent bonds, and hydrogen bonds formed? Describe the electrons involved in atoms in each of these bonds.
Problem: What is the osmolarity of a solution containing 90mM NaCl, 120 mM KCL, and 7 mM Ca CL2? Show your calculations
What is the volume of seawater (in ft3) it displaces when floating? What is the volume of the part of the iceberg out of the water (in ft3)?
Order: cardizem 0.25mg/kg IV bolus.infuse over 2 minutes.client weighs 50kg . Available: cardizem 25mg (5mg/mL). how many mL of the IV bolus is needed to infuse
How many grams of a 25% v/v hydroalcoholic solution should be used in preparing 32 fl.oz. of a 5% v/v solution. Specific gravity of the stock solution is 1.52.
Provide the amount of potassium chloride in moles that would be produced from the reaction of 2.1 moles of hydrochloric acid
Problem: What is the molar mass of the solid C6H8N2O4?
The remaining other isotope has a mass of 7.3904 amu. Use this information to calculate the atomic mass of this element.
Write out two balanced reaction equations for how one hydrogen ion (FF) might interact Twith hydroxyapatite.
Problem: Explain how buffer systems work. Describe acidosis and alkalosis, how they develop, and what their primary effects are.
Write a short post on a strategy that you will utilize to understand hydrogen bonds better.
Problem: Describe the types of chemical band and provide at least one example of each other than those from class.
Problem: How many lone pairs belong in the Lewis structure of H-Br?
How will their ECF osmolality and tonicity change with the addition of 1L of this solution? Explain your reasoning.
Calculate the amount of sodium iodide powder needed to prepare 30 mL of 4% sodium iodide solution, using water as the solvent.