One cup of fresh orange juice contains 139 mg of ascorbic acid (vitamin C, C6H8O6). Part A Given that one cup = 265.4 mL, calculate the molarity of vitamin C in orange juice. Express your answer to an appropriate number of significant figures with the appropriate units. НА M= Value Submit Request Answer ? Units
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- A chemist prepares a solution of iron (II) bromide (FeBr₂) by measuring out 0.50 g of FeBr, into a 100. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Br anions in the chemist's solution. Be sure your answer is rounded to 2 significant digits. esc Fr 0 Continue 55°F Mostly clear ♫x F1 ! mol L F2 @ F3 4 F4 x10 Q Search LA X F5 % C S G F6 A 6 F7 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Acc 8 P 8 & 7 F8 OC F9 DELL prt sc F10 home Submit Assign F11 end A F12 inserA 335 −mL−mL can of soda pop contains 44 gg of sucrose (C12H22O11C12H22O11). Part A What is the molarity of the solution with respect to sucrose? Express your answer using two significant figures.A student prepares a 0.28 mM aqueous solution of acetic acid (CH,CO,H). Calculate the fraction of acetic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. |% x10
- Calculate the solubility of copper(II) hydroxide (Ksp = 2.20 × 10-20) in pure water in grams per 100.0 mL of solution. Express your answer in grams per 100 milliliters of solution to three significant figures. ? solubility = g per 100.0 mL of solution Submit Previous Answers Request AnswerA student prepares a 0.95 mm aqueous solution of acetic acid (CH³CO₂H). Calculate the fraction of acetic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits.The toxicity of DDT (C14H9Cl5) led to a ban on its use in the United States in 1972. Determinations of DDT concentrations in groundwater samples from Pennsylvania between 1969 and 1971 yielded the following results: Location Sample Size Mass of DDT Orchard 253 mL 0.0310 mg Residential 1.77 L 0.0350 mg Residentialafter a storm 51.5 mL 0.570 mg Express these concentrations in millimoles per liter. Orchard= ___mmol/l Residental=___ mmol/l Residential after a storm=___ mmol/L
- Is the concentration of the solution prepared in the question below only approximate because sodium hydroxide is not a primary standard? * Find the mass in grams of sodium hydroxide that will be required to prepare a solution with a concentration of 0.500 mol·dm⁻³ in a 250 cm³ volumetric flask. [Round the answer to three decimal places. Do not type in the unit. Use a decimal point.] *A 30 mL sample of vinegar is titrated with 39 mL of 0.5 N Sodium Hydroxide. What is the normality of the acetic acid (CH3COOH) in vinegar? Atomic Weights :Sodium - 22.99Oxygen - 15.999Hydrogen - 1.008 Enter numerical value only; round off to 4 decimal places if necessarya 25.00 mL aliquot of vinegar was diluted to 250 mL in a volumetric flask. Titration of 50.00 mL aliquots of the diluted solution required an average of 34.88 mL of 0.09600 M NaOH. Express the acidity of the vinegar in terms of the percentage (w/v) of acetic acid (MM:60g/mol). Consider the correct significant figures of your answer and do not forget the unit.
- Calculate the solubility of copper(II) hydroxide (Ksp = 2.20 × 10-20) in pure water in grams per 100.0 mL of solution. Express your answer in grams per 100 milliliters of solution to three significant figures. ΑΣφ a ха |X| X•10" solubility = 1.76 • 10¯7 g per 100.0 mL of solution %D Submit Previous Answers Request Answer Incorrect; Try Again; 4 attempts remaining Express the equilibrium concentrations of the formed ions in terms of S (the number of moles per liter of Cu(OH), dissolved) and substitute them into the expression for Kan:Calculate the molarity of the solution that results when 8.5 ml of CH3OH (methyl alcohol or methanol) is dissolved in 7.5 ml of water (CH3OH; density 0.792 g/mL) C = 12.01 H = 1.008 O = 16.00 Write this answer with one digit past the decimal point. (Important - Trailing zeroes count as digits - (e.g. 12.0 counts as one digit past the decimal point). The molarity is ______________________M72.1 g C2 H6O in 2.18 L of solution Express your answer using three significant figures. ? M molarity = Submit Request Answer Part C 12.59 mg KI in 110.4 mL of solution Express your answer using four significant figures. |V ΑΣφ molarity = Submit Request Answer Provide Feedback