86 g CCl4 Express your answer using two significant figures. ΑΣφ %3D

Q: Round each number to three signifi cant fi gures. a. 25,401c. 0.001 265 982e. 195.371 b. 1,248,486d.…

A: Hi, since you posted questions with multiple subparts we will answer the first three questions for…

Q: 1.55 Round off each number to the indicated number of signifi- cant figures (sf): (a) 231.554 (to 4…

A: 1.55 The rules for determining the significant figures are given below: 1) Non-zero digits are…

Q: x2 4. (0.432)x(0.928)3 1.45 x 10-5 X-?

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Q: 8)200cm3→ dm3 9)3.5 x 105 ng → mg 0)8.43 x 1012 mg Gg

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Q: Convert 71.63 g/cm3 to mg/dm3

A: Given :- 71.63 g/cm3  To calculate :- 71.63 g/cm3 to mg/dm3

Q: Q/HDI 1 2 0₂N- OH NO₂ NO₂ NH₂

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Q: How many signifi cant fi gures does each number contain? a. 23.45 c. 230 e. 0.202 g. 1,245,006 i.…

A: All non-zero digits are considered significant figures. a. 23.45     b. 23.057     c. 230 d. 231.0…

Q: Composition C-4 is a plastic explosive having a density of 1.05 g/cm3. Calculate the mass of a brick…

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Q: H2(g) + Pa(g) = PH3(g) Express your answer to two significant figures.

A: Given32H2 (g)  + 14P4(g)  ⇌  PH3(g)∆Gf0H2 = 0 kJ/mole∆Gf0P4 = 24.4 kJ/mole∆Gf0 PH3 = 13.4 kJ/moleT =…

Q: A wooden block has a volume of 18.5 in3. Express the volume of the cube in cm3.a) 303 cm3b) 47.0…

A: Given   The volume of wooden block is 18.5 in3.

Q: 9.0x10-2 M NaBrO. Express your answer using two significant figures. ΑΣφ [OH ] = %3D

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Q: Which number is the smallest? O A. 4.38 x 10-3 O B. 4.38 x 103 O C. 438 U D. 4.38 x 102 O E. 4.38 x…

A: Given :-  A. 4.38 × 10-3 B. 4.38 × 103 C. 438 D. 4.38 × 102 E. 4.38 × 10-2  To be determined :- the…

Q: Part A N2 (g) + 3H2(g) 2NH3(g) Express your answer to two significant figures.

A: Part A The formula to calculate standard Gibbs free energy is as follows: ΔGrxn0=∑nΔGf…

Q: Complete the following conversions between SI units.(a) 612 g = ________ mg(b) 8.160 m = ________…

A: Conversion between the SI units are done using the conversion factors.  In SI units all the…

Q: (C) (D) 8.44 x 10 5.63 x 1014 (E) 6.94 x 10 20 amber has afready vour PSU ID number (you dont

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Q: Perform the following and give your answer with the proper number of sigifigs 0.02070 ÷ 4.50…

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Q: 1 cmol Ca2+ = 1 cmol Na+   true or false

A: Given ,  1 cmol Ca2+ = 1 cmol Na+  Whether this equality is true or false

Q: How much mass will the cube in Figure 1.21 have if a 2-c m 3 cube of the same material has a mass of…

A: The box made up of the same material means their density will be constant. This means the box of…

Q: Fill in the table rows. Maintain the same number of significant digits. pH [H+] [OH] pOH 1.9 4.73…

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Q: Complete each row of the table below by filling in the missing prefix or missing exponent. 1 ds 10…

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Q: Determine the density of the following object in g/cm3 . A cube with edge length = 0.750 m and mass…

A: The density of an object is the ratio of its mass to its volume. The density is an intensive…

Q: What is correct from multiple choice

A: The metric system of measurement is a very organized system which is based on multiples of ten. For…

Q: 2.8 x 4.5039 =? what is the result of the operation expressed in significant numbers? A) 12.6 B)…

A: Given  2.8 x 4.5039 = ?

Q: e the molarity (M = moles/L) of the NaOH solution to the correct number of significant figures. %3D

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Q: Calculate the mass of camphor (C10 H16 0) that contains a million (1.0 × 106) carbon atoms. Be sure…

A: Mole: it is defined as the ratio of mass divided by the molar mass. mole=massmolar mass

Q: 10 lbm to in3 cm3

A: Units are fundamental to measure any substance length, volume,height. For example measuring the…

Q: Q4: Using the highest value of lead from the first-draw data set and assuming a resident drinks 2.0…

A: The concentration of lead given = 40.63 ppb And the volume of water used per day = 2.0 L = 2000 mL…

Q: Ultrapure silicon is used to make solid state devices such as computer chips.  What is the mass in…

A: 1111.3 g

Q: In the picture below, determine how many circles with a radius of 0.5" can fit into a 5.0" box.…

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Q: 1. РОСls 2. MеMgCI 3. aq H*

A: 1. Amide reaction with POCl3 produces cyclohexane nitrile. Cyclohexane nitrile react with methyl…

Q: How many sig figs in this number?   1.76000 x 106

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Q: DIKECT TITKATIDN %% PURITI: % = VXN* mEq weight of the samplex l00 %3D weight g sauiyele lg)

A: According to law of equivalence, a reactant exactly gives the same number of equivalents of…

Q: use each diagram to report a measurement to the proper number of signifigant figures

A: Given :b) 100 mL graduated cylinder c) 10 mL graduated cylinder

Q: O 19.0 cm³ 6.0 cm³ O 7.0 cm³ O 13.0 cm³ O

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Q: How many signifi cant fi gures does each number contain? a. 34.08 b. 0.0054 c. 260.00 d. 260

A: Significant figures   All non-zero numbers are significant Leading zeroes are not significant  Zero…

Q: 3. Convert 32°F to Celsius. * O 100°C O 10°C O 25°C

A: Given Temperature = 32 oF

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: The rule simply says that during multiplication and division, the number of significant figures in…

Q: A miner has a bag containing mercury and sand. Mercury has density of 13.6 g/cm3. Predict whether…

A: Given,  A miner has a bag containing mercury and sand  Density of the mercury = 13.6 g/cm3…

Q: The femtogram is a unit of measurement of the amount of matter equivalent to: a) 10 millionth part…

A: The femtogram is a unit of measurement of the amount of matter equivalent,

Q: How many sig figs in this number? 4.50 x 105

A:

Q: Complete the following  conversions between SI units.  A. 612 g=___mg B. 8.160 m=___cm C. 3779…

A: 1 g = 103 mg 1 m = 102 cm 1 ug = 10-6 g 1 mL = 10-3 L 1 kg = 103 g

Q: C8H100 8 4H 6 1H 5 q 241 3 m 2 3H t |||| 1 PPK

A: The molecular formula of the organic compound given is C8H10O. The degree of unsaturation =…

Q: The density of lead is 11.4 g/cm3. Calculate the mass of a lead ball (in grams) with a radius of…

A: Given : Density of lead = 11.4 g/cm3  And radius of ball = 0.50 mm = 0.050 cm…

Q: Rank the measurements from largest to smallest 2.52 × 10⁴ cg 7.24 ng 6.37 × 10⁻² Mg

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Q: What is the length of the nail reported to the correct number of significant figures? Centimeters…

A: Given, The length from the end to last tip of nail falls between length 0 to 4.5 cm of scale.

Q: Composition C-4 is a plastic explosive having a density of 1.05 g/cm3. Calculate the mass of a brick…

A:

Q: Calculate the mass of camphor (C1,H160) that contains a million (1.00 x 10°) hydrogen atoms. Be sure…

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Q: 1 4 C 7 8 +/- x 10 0 LO

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Q: Multiply or divide the following measurements. g 502.42 g 0.87 mL = %3D mL mol 0.934 L X 3.40 L…

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