When you perform the following operations, how many significant figures should your answer have? Assume these are measured quantities. 30.7100 + 0.01 = 0 1 O 2 O 3 0 7 0 8 4.
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A: Hello dear welcome on bartleby; The correct answer is 267,000
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- Dimensional Analysis is a way of doing numerical "book-keeping" when converting quantities or performing calculations. • When converting quantities from one unit to another, conversion factors are used. Solving with Dimensional Analysis and Multiple Units: If I am in Canada where the price of gas is $1.022 USD·L1, how much will it cost me to fill up my gas tank if I travelled 125 km? • Let's also assume that my car gets an average of 30.0 miles/gallon.A 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. 0.050 mol kg = ? mol g 口。 x10 X μ 0|0 GMethyl benzoate is an oily liquid with a boiling point of 199°C. What volume of methyl benzoate is needed to prepare 5.8 grams of benzoic acid? The density of methyl benzoate is 1.08 g·cm⁻³. Molar masses are given in Figure 4. [Give only the number without the unit. Give the answer in cubic centimetres and round to 1 decimal place. Use a decimal point.] * Your answer
- mol L A chemist must prepare 850. mL of 2.00 M aqueous silver nitrate (AgNO3) working solution. He'll do this by pouring out some 4.47 aqueous silver nitrate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the silver nitrate stock solution that the chemist should pour out. Be sure your answer has the correct number of significant digits.A chemist must prepare 300.mL of 2.00M aqueous silver perchlorate AgClO4 working solution. He'll do this by pouring out some 5.62molL aqueous silver perchlorate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the silver perchlorate stock solution that the chemist should pour out. Round your answer to 3 significant digits.A chemistry student needs 50.0 g of diethylamine for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of diethylamine is 0.706 g·cm - 3 Calculate the volume of diethylamine the student should pour out. Be sure your answer has the correct number of significant digits. mL x10
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- A chemist adds 70.0mL of a 2.40 x 10^−4 mol/L copper(II) fluoride (CuF2) solution to a reaction flask. Calculate the micromoles of copper(II) fluoride the chemist has added to the flask. Be sure your answer has the correct number of significant digits.A chemistry student needs 35.0g of acetone for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of acetone is ·0.790gcm−3 . Calculate the volume of acetone the student should pour out. Be sure your answer has the correct number of significant digits.Earth's oceans have an average depth of 3800 m, a total area of 3.63 x 10 km², and an average concentration of dissolved gold of 5.8 × 10. If a recent $987.00 troy oz what is the value of gold in the oceans? (I troy oz 31.1 g) Round your answer to 2 significant figures. Note: Reference the SI prefixes and Unit conversions for derived SI units tables for additional information. price of gold was 0
