What relative concentration do you want to select for determining λmax? a. High end of the concentration range b. Low end of the concentration range c. Zero concentration
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What relative concentration do you want to select for determining λmax?
b. Low end of the concentration range
c. Zero concentration
Step by step
Solved in 3 steps
- 10. How do you find Ce concentration of final solution?Which factor will not increase the concentration of NH3 (ammonia)?N2(g) + H2(g) ⇄ NH3(g) + heatA. Increasing the concentration of H2.B. Increasing the concentration of N2.C. Decreasing the pressure.D. Decreasing the temperatureQ4, A 10 ml sample of vinegar was diluted in a 100 mL volumetric flask. This was then put in a burette and 15 mL of the diluted vinegar neutralized 10 ml of) 0.1 M NaOH. What is the concentration of vinegar in grams L¹ ? Note: please solve within 30 minutes. Asap
- I need help calculating the initial concentrations please.For the reaction below, an increase in gas pressure will ____ N2 + 3H2 <--> 2NH3 a. cause an increase in the concentration of N2 b. have no effect on reactants or products c. cause an increase in the concentration of H2 d. cause an increase in the concentration of NH3A solution of HCl at a certain temperature has a density of 1.189 g/mL. The concentration of the solution is © Time left: 96:06 Begin 12.39M automatic instructions Chores Additional data: Students Molar mass of HCl - 36.458 q/mol Questions Molar mass of H20 - 18.016 g/mol Ask My classes Question 2 Given or above calculate:
- How many moles of HBr is required based on stoichiometric relationship?A. One moleB. Two molesC. Three molesD. Four moles If a blue litmus paper is dropped to a solution containing these two reagents, what is theexpected result? (Assume that the amounts are stoichiometrically proportional).A. The blue litmus paper turns purple.B. The blue litmus paper turns red.C. The blue litmus paper decolorizes.D. The blue litmus paper stays the same. Based on selectivity of region (regioselectivity), the bromine atoms are expected to befound on the _______ carbon of the parent chain.A. First and sixthB. Second and fifthC. First and firstD. First and fifth Your answer in the previous number is supported by which principle?A. Oxidation reactionB. Huckel's ruleC. Markovnikov's ruleD. Reduction principle If bromine water is further added to the product in the reaction, what is an expectedresult? (Assume stoichiometric proportions are equal)A. Bromine water becomes denser.B. Bromine water decolorizes,C.…4. Oleum at a concentration of 110 percent is equivalent to H2SO4 at a concentration of 91.8 percent. true or falseYou are given two equations with two unknowns. Solve for concentrations CA and CB.
- What does the value of Kw say about the extent to which water molecule react with themselves? a. Water molecules react with themselves at constant rate, never increasing or decreasing. b. When an acid is added to water, the value of Kw will decrease. c. Because the value of Kw is so small, the extent to which water ionizes is quite large. d. Because the value of Kw is so small, the extent to which water ionizes is quite small.Concentration of iodide solution (mM) 100.0 Search And Select Concentration of thiosulfate solution (mM) 22.8 Concentration of hydrogen peroxide solution (mM 176.0 Temperature of iodide solution (\deg C) 25.0 Volume of iodide solution (1) used (mL) 10.0 Volume of thiosulfate solution (S2032-) used (mL) 1.0 Volume of DI water used (mL) 2.5 Volume of hydrogen peroxide solution (H2O2) used (mL) 7.5 Time (s) 12.8 What is the Initial concentration of hydrogen peroxide in reaction ( mM)?Trizma base is a commonly used buffer in biochemistry labs with a pKa of 8. How much 1 M HCl must you add to make 1 L of a 1 M pH 8.0 solution of Trizma base (assume any volume changes are negligible). Show all work. Be sure to include any relevant equations in your answer.