(a)
Interpretation: To write
Concept Introduction :
Scientific notation: It may be defined as the special way to write very small and very large number in easier way so that it will be easy to write and understand.
And standard form is normal way of writing the numbers.
(b)
Interpretation: To write
Concept Introduction :
Scientific notation: It may be defined as the special way to write very small and very large number in easier way so that it will be easy to write and understand.
And standard form is normal way of writing the numbers.
(c)
Interpretation: To write
Concept Introduction :
Scientific notation: It may be defined as the special way to write very small and very large number in easier way so that it will be easy to write and understand.
And standard form is normal way of writing the numbers.
(d)
Interpretation: To write
Concept Introduction :
Scientific notation: It may be defined as the special way to write very small and very large number in easier way so that it will be easy to write and understand.
And standard form is normal way of writing the numbers.
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EP BASIC CHEMISTRY-STANDALONE ACCESS
- Perform the calculation and record the answer with the correct number of significant figures. (6.5-6.09) 2.15 = X10 TOOLSarrow_forwardHow many significant digits should be reported in the answer to the following calculation?(4.213) + (10.02) = a. 3 b. 4 c. 2 d. 1 e. none of the above.arrow_forwardA heated lead ball is added to 158 grams of water in a coffee cup calorimeter. If the ball loses 47.35 °C of heat and the water gains 1.3 °C of heat, what is the mass of the lead ball? (3 sf)arrow_forward
- Answerarrow_forward(Q4) A diamond has a mass of 6.655 (troy) ounces. What is its mass in grams? (4 sf)arrow_forward(5.985 mmmm )(7.3 mmmm ) Complete the operation and express the answer with the appropriate number of significant figures and units. 26.0 gg / 2.3 mLmL Complete the operation and express the answer with the appropriate number of significant figures and units. 18.89 gg + 0.0215 gg Complete the operation and express the answer with the appropriate number of significant figures and units. 36.82 gg + 17 mgmg Complete the operation and express the answer with the appropriate number of significant figures and units.arrow_forward
- Titanium has a density of 4.55 g/mL. A piece of titanium has a volume of 250.0 mL. What mass, in grams, does this piece of titaniun have?arrow_forward(1.7) A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 1.71 g/mL, 1.72 g/mL, 1.71 g/mL, 1.70 g/mL. If the actual value for the density of the sugar solution is 1.50 g/mL, which statement below best describes her results? O Her results are accurate, but not precise. O Her results are precise, but not accurate. O Her results are both precise and accurate O Her results are neither precise nor accurate.arrow_forwardThe correct answer (reported to the proper number of significant figures) to the following is ________. (12.67 + 19.2)(3.99) / (1.36 + 11.366) = ________arrow_forward
- How many significant figures should there be in the answer to the following problem? (58.1 - 50.1)(3.72 X 105) 1.392arrow_forward9.1. 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_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
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