You add Benedict's reagent to a test tube containing a solution to test for the presence of reducing sugars in the solution. After heating, the solution colour is an orange-red. How much reducing sugar is present?

Which compound below forms an electrolyte solution when dissolved in water?     KOH     C12H22O11     Cl2     CH3CH2OH

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Submit this page at residential school Post-lab questions The acid content of a 25.00 mL aliquot of vinegar is to be assayed using 0.100 M NaOH. It was found that 20.55 mL of alkali was needed to neutralise the acid. What is the molarity of the acetic acid in the vinegar? 1. 2. 30.0 mL of 0.300 M H₂PO4 is mixed with 90.0 mL of 0.200 M KOH, and the mixture evaporated to dryness. Which salt will precipitate out: K3PO4, K₂HPO4, KH₂PO4? Show chemical equations and calculations to explain your answer.

How many grams of MgSO4 (molar mass 120.4 g/mole) are in 100.0 mL of a 5.0 molar solution? a.) 5.0 g b.) 12 g c.) 60.0 g d.) 120 g e.) 600 g

What is the molarity of a solution of 25.0 g NaOH (molar mass = 40.00 g/mol) dissolved in  .250 L  of soln?             M = mol/L A. 0.625 M  B. 6.25 M C. 0.025 M D. 2.50 M

AGNO3 solutions are often used to plate silver onto other metals. What is the maximum amount of silver that can be plated out of 4.8 L of an AgN03 solution containing 3.4% Ag by mass? Assume that the density of the solution is 1.01 g/mL) O A. 16 g Ag O B. 1.6 x 104 g Ag OC.1.6 x 102 g Ag O D.4.8 g Ag O E. none of the above

Consider the following balanced chemical equation: Mg(OH)2 + 2HCl → 2H2O + MgCl2 How many grams of HCl would be required to neutralize 50.0 grams of Mg(OH)2?

What is the concentration of an HCl solution if it takes 5.20 mL of 0.301 M NaOH to titrate 7.50 mL of the HCl?     5.20 M     0.321 M     0.434 M     4.79 M     0.209 M

Calculate the total concentration of ions after mixing Solution 1 and Solution 2 together; with the compositions described in the table below. Solution label Salt Concentration (M) Volume (mL) Solution 1 KF 0.500 1000 Solution 2 Fe2(SO4)3 0.750 350   a. 0.759 M   b. 0.954 M   c. 1.25 M   d. 1.71 M   e. 3.52 M