STARTING AMOUNT X A cup of coffee contains 95.0 milligrams of caffeine. How many grams is this? ADD FACTOR x ( ) == ANSWER RESET 10 9.50 x 106 9.50 x 10 0.01 9.50 × 104 9.50 x 10-6 9.50 W 9.50 × 10-3 0.001 9.50 × 10-4 0.0950 0.950 100 0.1 + 1 10-6 10% 1000 95.0 САРС mg g 5:51 PM
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- Perform the following mathematical function.51.11 + (0.97/2.414 × 0.32150 × e.-3.25) + 1.52444 3.4 The written value of 1.0 μm meansa. 102 mb. 10-2 mc. 106 m d. 10-6 m e. 10-9 m 1.2 An example of a physical property isA) the reaction of rubidium with water to form rubidium hydroxideB) the density of boronC) the burning of sulfur to form sulfur dioxideD) the reaction of cesium with oxygen to form cesium superoxideE) the energy content of liquid sodiumData of Candy Mass of candy: 6.1115g Concentration of NaOH (M): 0.09639 Volume of NaOH solution used: 17.2 mL Data of milk Mass of milk: 103.8405g Concentration of NaOH (M): 0.09639 Volume of NaOH solution used: 5.3 mLA student prepares a 1.1 mM aqueous solution of 4-chlorobutanoic acid (C3H6CICO₂H). Calculate the fraction of 4-chlorobutanoic 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
- 11 of 11 I Review | Constants Periodic Table Suppose that you want to find the equation for a line that passes through the two points (0,3) and (4, 9). What is the slope of this line? Express your answer numerically. > View Available Hint(s) Πνα ΑΣΦ ? m = Submit rt C Complete previous part(s) 9:41 PM 36%< STARTING AMOUNT X A brine solution is 3.50% NaCl by mass. Given that its density is 1.071 g/mL , determine the quantity of liters of solution that contains 5.00 moles of NaCl 5.00 ADD FACTOR 0.1 *( ) 3.50 10 35.45 Question 29 of 33 1.071 0.01 8.03 x 1022 1000 100 ANSWER 7.80 22.99 0.0156 L solution g NaCl/mL g solution mL solution kg solution g NaCl/g solution 58.44 6.022 x 1023 0.0780 moles of NaCl mol NaCl RESET 0.001 2 1 g NaCl 1.56A researcher has developed a new analytical method to determine the percent by mass iron in solids. To test the new method, the researcher purchases a standard reference material sample that is 2.85% iron by mass. Analysis of the iron standard returns values of 2.75%, 2.89%, 2.77%, 2.81%, and 2.87%. Are the results of the new method significantly different from the standard reference sample? (Hint: Use Confidence Interval)
- Someone invents a new unit of measurement called a musk and defines that 5 musk is equal to exactly 107g. How many musk are in 53.95 g? 5.395x108 musk O 5.395x107 musk 1.079x107 musk O 1.079x10-6 musk O 9.270x10-9 muskA certain liquid X has a normal boiling point of 105.70°C and a boiling point elevation constant =Kb2.16·°C·kgmol−1. A solution is prepared by dissolving some potassium bromide (KBr) in 400.g of X. This solution boils at 107.3°C. Calculate the mass of KBr that was dissolved. Round your answer to 2 significant digits. ____gA solution is prepared by diluting 2.81 mL of the blue dye stock solution to 25.00 mL. The measured absorbance for the prepared solution is listed in the data table. Measurement Result Blue dye stock solution 0.293 M Absorbance at 630 nm 0.00265 Calibration curve y=0.0833x Part: 0/3 Part 1 of 3 What is the theoretical molar concentration? Round your answer to 3 significant digits. [Blue]theoretical-M x10 X S Part: 1/3 Part 2 of 3 What is the experimental molar concentration? Round your answer to 3 significant digits. [Blue ] experimental M 9 Subm Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Cent
- A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 3.8 mg of potassium permanganate into a 50. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium permanganate solution. Be sure your answer has the correct number of significant digits. mol/L Continue != 11 zase RK- burial Sent papers to M.Kem WE burial-go ahead HE Turner Batavia Justin Sawith x10 X The Grand in Buffale 1205 Delaware Ave Buffalo NY 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center ******* Christopher Mitchell SM Submit Assignment setup appt for Accessibility In [113] C200 30 Recen 6 ol. 19 Ar Like?Conversion of units: ✓ Blood Sodium 100 mmol/mL to mEq/L ✓ Blood CO2 15 vol % to mmol/L ✓ Blood protein 12 gram % to gram/literA student prepares a 0.38 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. 11 % 0.0 x10 X S 0 E