Homework Answers
The scale A has only cm marked on it. So we can measure only in cm with precision. So 4.2 cm, 4.25cm and 4.3 cm are not consistent with the scale.
The scale Bo has mm marked on the scale. So we can measure in mm with precision but not beyond that. 4.2 cm means 4 cm and 2 mm. Any digit beyond 4.2 can't be measure on this scale .So 4.23 cm, 4.25cm and 4.250 cm are not consistent with the precision of the scale.
1 L has 1000 mL therefore 2.354 L has 2.354×1000= 2354 mL
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Chapter 1: 1. (10 pts) Circle which measurements are not consistent with the precision of each...
Section Date Student Name Report on Laboratory Experiment "Measurements and Unit Conversions" LABORATORY ACTIVITIES: 1. Measuring...
Section Date Student Name Report on Laboratory Experiment "Measurements and Unit Conversions" LABORATORY ACTIVITIES: 1. Measuring length: la Using your body while pacing: This is a quick and easy method in the absence of another instrument. 1. Count how many steps it takes you to cover the 50 ft distance marked on the hall's floor. hamber of feet 2. Calculate your step size (p e sumber of steps). 3. Count how many steps it takes you to go from one...
Galena, PbS 1] (10 pts) a) Balance the following reaction AND include the phase (G.e. (aq),...
Galena, PbS
1] (10 pts) a) Balance the following reaction AND include the phase (G.e. (aq), (g). (I), or (s) of each compound or ion). Write the lonic and Net Ionic equations below. Ionic Eq: Net Ionic Eq b) When 100.0 ml 0.500 M AINO) and + 200.0 ml 0.300 M K.CO, are mixed how many grams of a solid will form? and + 200.0 ml 0.300 M K2CO3 are mixed how many grams of a solid will form? n...
1 of 2 27 Name f a liquid has a density of 2.71 what volume of...
1 of 2 27 Name f a liquid has a density of 2.71 what volume of the lquid has a mass of 45.0 g? 0.0602 mL c) 166 mL b) 122 ml 602ml How many seconds are there in seven days? 252x 10s LO1 10s a) b) 6.05x 10s 3.02x 10s d. Which of the following is true? a liquid has a definite shape a solid can be compressed easly the particles of a gas are far aparf a gas...
Lab Exercise IB Examples: 1000 is expressed as 1 x 10) (1000 is greater than (1000...
Lab Exercise IB Examples: 1000 is expressed as 1 x 10) (1000 is greater than (1000 is greater than 1, so the exponent is positive) tion of 1. so the exponent is negative) 0.001 is expressed as 1 x 10-3 (0,001 is a fraction of 1 Note: you cannot just count the number of Os, you ne need to count the number of places th decimal moves to make the coefficient be greater Now lets combine all 3 rules: 0.00000000000308...
BUS 3053 -51 (1) Homework: Chapter Eight Score: 0 of 2 pts 5 of 10 (0...
BUS 3053 -51 (1) Homework: Chapter Eight Score: 0 of 2 pts 5 of 10 (0 complete) P8-6 (similar to) HW Score: 0%, 0 Question Help (Portfolio expected rate of return) Barry Swifter is 60 years of age and considering retirement. Barry's retirement portfolio currently is valued at $750,000 and is allocated in Treasury bills, an S&P 500 index fund, and an emerging market fund as follows: . Based on the current portfolio composition and the expected rates of return...
1. Balance the following reaction in the medium specified. (10 pts) a. Which element is being...
1. Balance the following reaction in the medium specified. (10 pts) a. Which element is being oxidized. b. Which element is being reduced. c. Identify the oxidizing and reducing agent. CIO3+ (aq) + l'(aq) --l(s) +Cl(aq) (acidic) 2. What is the oxidation number of the indicated element in the following compounds (6 pts) N in HNO, Cl in HCIO, Mn in KMnO4 3. Given the reaction (5 pts) 2C4H10(g) + 1302(g) → 8CO2(g) + 10H2O(g) How many moles of C&H1o...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric acid was required to exactly neutralize 49.0 mL of sodium hydroxide. Determine the molarity of the base. H2SO4 (aq) + 2NaOH(aq) + 2 H2O (0) + Na2SO4 (aq) [balanced] 0.125 M 6.00 x 10 M 0.250 M 0.175 M 0.600 M 2ct Question 6 0/1 pts Calculate the pressure exerted by 5.12 grams of chlorine gas in a 850 mL sealed flask at 27.0°C....
I need someone to help answer table 1 only mass, volume, y density and table 2...
I need someone to help answer table 1 only mass,
volume, y density and table 2 with a graph each table.
please read the procesures, thank you
Experiment 2 Graphing and Measurements Graphs summarize numerical data efficiently and are usually casier to understand and interpret than columns of numbers. In this experiment, you will collect data and construct a graph that makes an effective visual presentation. Materials: Equipment metric ruler Chemical a kit with 5 pieces Procedure: Part I: Measurements...
i need help with my biology lab Length 1 km = 1,000 m 1m = .001...
i need help with my biology lab
Length 1 km = 1,000 m 1m = .001 km 1m = 100 cm 1 cm = .01 m Weight 1 kg = 1,000 1g-,001 kg 1g - 100 g 1 cg=.018 18 = 1,000 mg 1 mg = .001 g Volume 1 kL = 1,000 L 1L = .001 Ki 1L = 100 CL 1 cl = .01L 1 L = 1,000 mL 1 mL = .001 L 1 mm = .001...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...
Section Date Student Name Report on Laboratory Experiment "Measurements and Unit Conversions" LABORATORY ACTIVITIES: 1. Measuring length: la Using your body while pacing: This is a quick and easy method in the absence of another instrument. 1. Count how many steps it takes you to cover the 50 ft distance marked on the hall's floor. hamber of feet 2. Calculate your step size (p e sumber of steps). 3. Count how many steps it takes you to go from one...
Galena, PbS
1] (10 pts) a) Balance the following reaction AND include the phase (G.e. (aq), (g). (I), or (s) of each compound or ion). Write the lonic and Net Ionic equations below. Ionic Eq: Net Ionic Eq b) When 100.0 ml 0.500 M AINO) and + 200.0 ml 0.300 M K.CO, are mixed how many grams of a solid will form? and + 200.0 ml 0.300 M K2CO3 are mixed how many grams of a solid will form? n...
1 of 2 27 Name f a liquid has a density of 2.71 what volume of the lquid has a mass of 45.0 g? 0.0602 mL c) 166 mL b) 122 ml 602ml How many seconds are there in seven days? 252x 10s LO1 10s a) b) 6.05x 10s 3.02x 10s d. Which of the following is true? a liquid has a definite shape a solid can be compressed easly the particles of a gas are far aparf a gas...
Lab Exercise IB Examples: 1000 is expressed as 1 x 10) (1000 is greater than (1000 is greater than 1, so the exponent is positive) tion of 1. so the exponent is negative) 0.001 is expressed as 1 x 10-3 (0,001 is a fraction of 1 Note: you cannot just count the number of Os, you ne need to count the number of places th decimal moves to make the coefficient be greater Now lets combine all 3 rules: 0.00000000000308...
BUS 3053 -51 (1) Homework: Chapter Eight Score: 0 of 2 pts 5 of 10 (0 complete) P8-6 (similar to) HW Score: 0%, 0 Question Help (Portfolio expected rate of return) Barry Swifter is 60 years of age and considering retirement. Barry's retirement portfolio currently is valued at $750,000 and is allocated in Treasury bills, an S&P 500 index fund, and an emerging market fund as follows: . Based on the current portfolio composition and the expected rates of return...
1. Balance the following reaction in the medium specified. (10 pts) a. Which element is being oxidized. b. Which element is being reduced. c. Identify the oxidizing and reducing agent. CIO3+ (aq) + l'(aq) --l(s) +Cl(aq) (acidic) 2. What is the oxidation number of the indicated element in the following compounds (6 pts) N in HNO, Cl in HCIO, Mn in KMnO4 3. Given the reaction (5 pts) 2C4H10(g) + 1302(g) → 8CO2(g) + 10H2O(g) How many moles of C&H1o...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric acid was required to exactly neutralize 49.0 mL of sodium hydroxide. Determine the molarity of the base. H2SO4 (aq) + 2NaOH(aq) + 2 H2O (0) + Na2SO4 (aq) [balanced] 0.125 M 6.00 x 10 M 0.250 M 0.175 M 0.600 M 2ct Question 6 0/1 pts Calculate the pressure exerted by 5.12 grams of chlorine gas in a 850 mL sealed flask at 27.0°C....
I need someone to help answer table 1 only mass,
volume, y density and table 2 with a graph each table.
please read the procesures, thank you
Experiment 2 Graphing and Measurements Graphs summarize numerical data efficiently and are usually casier to understand and interpret than columns of numbers. In this experiment, you will collect data and construct a graph that makes an effective visual presentation. Materials: Equipment metric ruler Chemical a kit with 5 pieces Procedure: Part I: Measurements...
i need help with my biology lab
Length 1 km = 1,000 m 1m = .001 km 1m = 100 cm 1 cm = .01 m Weight 1 kg = 1,000 1g-,001 kg 1g - 100 g 1 cg=.018 18 = 1,000 mg 1 mg = .001 g Volume 1 kL = 1,000 L 1L = .001 Ki 1L = 100 CL 1 cl = .01L 1 L = 1,000 mL 1 mL = .001 L 1 mm = .001...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...
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