Concept explainers
(a)
Interpretation:
The average mass from each set of data is to be calculated. Also, the most accurate one is to be identified.
Concept introduction:
Precision is defined as the closeness of two measurements with each other. Accuracy refers to the closeness of the measured values to the standard or known value. Some errors also occur in the calculation of the measured quantities.
The two types of errors are as follows:
1. Systematic error: This error is a part of the experimental setup or faulty devices.
2. Random error: This error occurs always and is due to instruments’ precision.
Average mass is calculated by the sum of all the masses divided by the number of masses.
(b)
Interpretation:
The most precise data is to be identified. Also, whether the most precise data is equal to the most accurate data or not is to be determined.
Concept introduction:
Precision is defined as the closeness of two measurements with each other. Accuracy refers to the closeness of the measured values to the standard or known value. Some errors also occur in the calculation of the measured quantities.
The two types of errors are as follows:
1. Systematic error: This error is a part of the experimental setup or faulty devices.
2. Random error: This error occurs always and is due to instruments’ precision.
Average mass is calculated by the sum of all the masses divided by the number of masses.
(c)
Interpretation:
The most accurate and the most precise data is to be identified.
Concept introduction:
Precision is defined as the closeness of two measurements with each other. Accuracy refers to the closeness of the measured values to the standard or known value. Some errors also occur in the calculation of the measured quantities.
The two types of errors are as follows:
1. Systematic error: This error is a part of the experimental setup or faulty devices.
2. Random error: This error occurs always and is due to instruments’ precision.
Precision is estimated by the range of the data. The formula to calculate the range is as follows:
(d)
Interpretation:
The least accurate and the least precise is to be identified.
Concept introduction:
Precision is defined as the closeness of two measurements with each other. Accuracy refers to the closeness of the measured values to the standard or known value. Some errors also occur in the calculation of the measured quantities.
The two types of errors are as follows:
1. Systematic error: This error is a part of the experimental setup or faulty devices.
2. Random error: This error occurs always and is due to instruments’ precision.
Precision is estimated by the range of the data. The formula to calculate the range is as follows:
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Chapter 1 Solutions
CHEMISTRY(LOOSELEAF) W/CONNECT+EBOOK
- Nonearrow_forwardH2SO4 (cat.), H₂O 100 °C NH₂arrow_forwardX Draw the major products of the elimination reaction below. If elimination would not occur at a significant rate, check the box under the drawing area instead. ది www. Cl + OH Elimination will not occur at a significant rate. Click and drag to start drawing a structure.arrow_forward
- Nonearrow_forward1A H 2A Li Be Use the References to access important values if needed for this question. 8A 3A 4A 5A 6A 7A He B C N O F Ne Na Mg 3B 4B 5B 6B 7B 8B-1B 2B Al Si P 1B 2B Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe * Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Rf Ha ****** Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Analyze the following reaction by looking at the electron configurations given below each box. Put a number and a symbol in each box to show the number and kind of the corresponding atom or ion. Use the smallest integers possible. cation anion + + Shell 1: 2 Shell 2: 8 Shell 3: 1 Shell 1 : 2 Shell 2 : 6 Shell 1 : 2 Shell 2: 8 Shell 1: 2 Shell 2: 8arrow_forwardNonearrow_forward
- IV. Show the detailed synthesis strategy for the following compounds. a. CH3CH2CH2CH2Br CH3CH2CCH2CH2CH3arrow_forwardDo the electrons on the OH participate in resonance with the ring through a p orbital? How many pi electrons are in the ring, 4 (from the two double bonds) or 6 (including the electrons on the O)?arrow_forwardPredict and draw the product of the following organic reaction:arrow_forward
- Nonearrow_forwardRedraw the molecule below as a skeletal ("line") structure. Be sure to use wedge and dash bonds if necessary to accurately represent the direction of the bonds to ring substituents. Cl. Br Click and drag to start drawing a structure. : ☐ ☑ Parrow_forwardK m Choose the best reagents to complete the following reaction. L ZI 0 Problem 4 of 11 A 1. NaOH 2. CH3CH2CH2NH2 1. HCI B OH 2. CH3CH2CH2NH2 DII F1 F2 F3 F4 F5 A F6 C CH3CH2CH2NH2 1. SOCl2 D 2. CH3CH2CH2NH2 1. CH3CH2CH2NH2 E 2. SOCl2 Done PrtScn Home End FA FQ 510 * PgUp M Submit PgDn F11arrow_forward
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