Concept explainers
(a)
Interpretation:
The given operations and its scientific notation have to be given.
Concept introduction:
Scientific notation:
For the given number the scientific notation is given by
Here, the value and sign of
To perform: The given operation and express its result in scientific notation
(b)
Interpretation:
The given operations and its scientific notation have to be given.
Concept introduction:
Scientific notation:
For the given number the scientific notation is given by
Here, the value and sign of
To perform: The given operation and express its result in scientific notation
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General Chemistry - Standalone book (MindTap Course List)
- Decide whether each proposed multiplication or division of measurements is possible. If it is possible, write the result in the last column of the table. proposed multiplication or division (1.3 cm)- (0.27 m) - ? Oves O no 48. kg 2 8.0 m <= ? Is this possible? (9.0L) (8.0 L) = ? O yes O no O yes O no result 0 0 0.9 0.0 X 3 010 OP HD 00 E ala Ararrow_forwardAktiv Chemistry Google D... € echo 1 2.54 2.54 1 in 2.54 cm³ A popular car has an engine that is reported to have a volume of 4320 cm³. What is 30 the size in cubic inches ? 17 (0.01)³ in sm 264 X Moodle at Southea... Aktiv Chemistry GApopularcarhasanenginethatisre x + 0.01 X 7.08 x 104 Question 9 of 33 (1000)³ 1 2.54 (2.54)³ 16.387 in стве 100 < ★ (1) ³ X 4320 1 1 2.54 in 1.70 × 10³ cm (100)³ 1000arrow_forwardb. (6.0241 X 1.24) / (.0147 X 10.0) = * c. The density of an object that has a mass of 16.0 grams and a volume of 35 mL? d. The volume of 65.4 grams of silver if the density of silver is 10.5 g/mL? e. An object is placed in a graduated cylinder containing 20.5 mL of water. The water level rose to 28.5 mL. If the object has a mass of 42.3 grams, what is the density of the object? S f. A student measures the volume and mass of a piece of sodium chloride and calculates the density of sodium chloride to be 2.245 g/cm³. He then looks in his textbook and finds that the actual density of sodium chloride is 2.156 g/cm³. What is his percent error?arrow_forward
- What is the volume (in cm3) of a balloon inflated to a circumference of 10.0 inches? Volume of a sphere=1.33(3.14)(circumference/6.28)3arrow_forward5. An empty 10 gal tank weighs 4.5 lb. What is the total weight of the tank plus the water when it is filled with 5 gal of water? 6. If you add 50 g of sugar to 500 mL of water, how do you calculate the density of the sugat solution? 7. For ethanol, a handbook gives: sp. gr. 60°F = 0.79389. What is the density of ethanol at 60°F?arrow_forwardDecide whether each proposed multiplication or division of measurements is possible. If it is possible, write the result in the last column of the table. proposed multiplication or division 2 40. cm 0.40 m = ? (3.0 g²). (0.065 kg) = ? (3.0 m)- (5.0 s²) = ? Is this possible? O O OO O O yes no yes no O yes no result ☐ x10 ロ・ロ X Н Śarrow_forward
- Chemistry (1.70) (7.87 x 10-3) = < b. (7.986 × 10³) - (4.86 × 10²) X C. (7.986 × 10³) ÷ (4.86 × 10²) = 8.306 d. (0.0731) (16.0000) 35.31 a. II IV VUITCU number of signarrow_forwarda cylinder with inner radius 1.25cm contains 44.0g of ethanol (density = 0.789g/mL), what is the height of the cylinder? For a cylinder: V = (height)(3.14)(radius)2arrow_forward(3.75x104) - (1.25x103)=? Express your answer in scientific notation and regular notation. (You need to type your exponents as 10^4, 10^3, 10^5 etc... the ^symbol is shift+6 on the keyboard) * Your answer (2.0x103) x (3.0x104)=? Express your answer in scientific notation. Your answerarrow_forward
- 9.1. The egg whites from four "large" eggs occupy a volume of 112mL. The mass of the egg whites from these four eggs is 1.20 X 102 g. What is the average density of an egg white from one "large" egg? 9.2. A solid with an irregular shape and a mass of 11.33 g is added to a graduated cylinder filled with water (d=1.00g/mL) to the 35.0-mL mark. After the solid sinks to the bottom, the water level is read to be at the 42.3-mL mark. What is the density of the solid? 9.3. Magnesium chloride is an important coagulant used in the preparation of tofu from soy milk. Its solubility in water at 20oC is 54.6 g/100 g. At 80oC, its solubility is 66.1 g/ 100 g. A mixture is made up of 16.2 g of magnesium chloride and 38.2 g of water at 20oC. a. Is the mixture homogeneous? If it is, how many more grams of magnesium chloride are required to make a saturated solution? If the mixture is not homogeneous, how many grams of magnesium chloride are undissolved? b. How many more grams of magnesium chloride…arrow_forwardA student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together. (72.1 72. Pa cm 3 ¹).0 3 ? kPa.m ☐• X μ 00arrow_forwardAfter carrying out the following operations, how many significant figures are appropriate to how in the result? (13.7 + 0.027) = 8.221 01 02 03 04 05 Xarrow_forward
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning