Question 14 (1 point)A mixture of oil (0.918 g cm³) and vinegar (1.006 g cm³) has a total mass of 397.8 g and a total volume of 422.8 cm³.What is the mass percent of oil in the mixture?72.2%27.8%☐65.4%Question 15 (1 point)What is the volume of vinegar in the mixture?cm³312.9 cm146.3 cm3109.9 cm³

Answered: Question 14 (1 point) A mixture of oil…

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

ChapterL: Let's Review

SectionL.3: Mathematics Of Chemistry

Problem 3RC: 3. What is the sum of 10.26 g and 0.063 g? 10.323 g 10.32 g 10.3 g 10. g

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A mixture of oil (0.918 g cm–3) and vinegar (1.006 g cm–3) has a total mass of 397.8 g and a total volume of 422.8 cm3. What is the mass percent of oil in the mixture? Question 14 options: 27.8% 65.4% 72.2%
Brass is an alloy of copper (8.92 g cm–3) and zinc (7.14 g cm–3). A 208.3 g piece of brass has a volume of 25.0 cm–3. What is the mass percent of copper in the alloy? Question 13 options: 72.4% 66.9% 78.0%
Question 3 (2 points) You need 350 L of distilled water for a dialysis patient. How many gallons of water is that? 1) 66 gal O 2) 92 gal 3) 946 gal 4) 66.1 gal 5) 0.0151 gal Note that "If a student performs significantly different on this exam compared to DII 吕0 888 F5 F6 F7 F8 F2 F3 F4 %23 2$ % 2 3 6. 7 E T F G * 00
Question 12 (1 point) Saved Brass is an alloy of copper (8.92 g cm³) and zinc (7.14 g cm³). A 208.3 g piece of brass has a volume of 25.0 cm-3 What is the density of the piece of brass? O 167g4 7.67 g cm³ 8.00 g cm³ 8.33 g cm³ Question 13 (1 point) What is the mass percent of copper in the alloy? 72.4% 78.0% 66.9%
Question 10 (1 point) v Saved A student poured 4.6 mL of water into a test tube. She marked the level of the water on the test tube and poured it out. Using a dropper, she filled the test tube to the marked level drop by drop. She used 66 drops of water. How many drops of water would be in 1 mL? O14.3478 drops/mL Can't tell from the information given. 50°F Type here to search
Pls help me with the following, thanks
E Q&A Library What is the mass of a solution if 25.0 ml of N Question What is the mass of a solution if 25.0 ml of NaOH was added to a 35.0 ml of water? Assume a density of 1.00 g/ml. Expert Solution Want to see the full answer? SEE SOLUTION Check out a sample Q&A here https://www.bartleby.com/subject/science/chemistry/questions-and-answers P Type here to search
Earth's oceans have a depth of 3800. m, a total area of 3.63 x 108km2, and an average concentration of dissolved gold ions of 5.80 x 10-9 g/L. If the value of gold is $370.00/troy ounce, what is the value of gold in the Earth's oceans with 1 troy ounce = 31.1 g. Group of answer choices $2.83 x1027 $2.83 x1033 $9.21 x109 $9.52 x1013 $9.52 x106 $9.21 x1016
What is the formula mass of Mg(N03)2? Express your answer to four significant figures and include the appropriate units µA ? Value Units Submit Request Answer Part B Calculate the formula mass of ethanol, C2H5OH Express your answer to three significant figures and include the appropriate units. HA Value Units Submit Request Answer Provide Feedback
the data you need is in one of the pictures
Short Answer 2. Volume displacement is often used to determine the volume of irregularly-shaped objects. Several pieces of jewelry suspected to be made of the same metal were weighed and corresponding volumes were determined by volume displacement (Figure 3, Table 1). Answer the following questions regarding the jewelry samples. Assume the samples are made of only one metal. Shown in photo, I need help with parts A and B.
A laboratory provides the following analysis obtained from a 50 ml sample of water. Ca2+ = 40 mg/L, Mg2+ = 30 mg/L, Fe²+ = 10 mg/L, Fe³+ = 5 mg/L, Nat = 20 mg/L, K+ = 20 mg/L What is the hardness of this water sample in units of mg/L as CaCO3? Your Answer: Answer

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