﻿ What determines the precision of calculated results based on measurements - AssignmentGrade.com

# What determines the precision of calculated results based on measurements

QUESTION POSTED AT 18/04/2020 - 07:21 PM

How small the unit of measurement is. The smaller the unit of measurement the more precise it is.

## Related questions

### Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of SO2 are mixed with 100.0 g of O2

QUESTION POSTED AT 02/06/2020 - 01:40 AM

### Which of the following correctly describes how rate laws are determined? Rate laws can be determined from the coefficients of balanced equations. The rate law for an elementary step can only be determined from unimolecular reactions. The rate law for the overall reaction is always determined by the rate law of the fastest step. Rate laws are determined through experimentation.

QUESTION POSTED AT 02/06/2020 - 01:33 AM

### Which of the following is not a property of a base? Please explain your answer. Change red litmus to blue Feel slippery to the touch Produce OH- ions Have a sour taste

QUESTION POSTED AT 02/06/2020 - 01:24 AM

### You have 75.0 mL of a 2.50 M solution of Na2CrO4(aq). You also have 125 mL of a 1.79 M solution of AgNO3(aq). Calculate the concentration of CrO42– after the two solutions are mixed together.

QUESTION POSTED AT 02/06/2020 - 01:19 AM

### J.C. wants to determine if there is a relationship between room color and sleep. Based on his research, J.C. makes an educated guess that people fall asleep more quickly in a room painted blue than in a room painted yellow. He asks several people which color they like better, yellow or blue, and uses their responses to see if his educated guess was correct. What is missing from J.C.'s scientific investigation? a. experiement testing hypothesis b. research on topic to see what others learned. c.hypothesis based on research that can be tested d.analysis of responses from all test subjects

QUESTION POSTED AT 01/06/2020 - 04:37 PM

### Explain the difference between mass and weight and how are they measured

QUESTION POSTED AT 01/06/2020 - 04:33 PM

### Assuming all volume measurements are made at the same temperature and pressure, how many liters of oxygen gas would it take to react completely with 7.25 liters of hydrogen gas? Show all of the steps taken to solve this problem. (4 points) Balanced equation: 2H2 (g) + O2 (g) yields 2H2 O(g)

QUESTION POSTED AT 01/06/2020 - 04:31 PM

### Please help :) Explain why a change in the position of a substituent group can, but does not always, result in a different compound. Give an example of when changing the position of this group results in a different compound and another example when it does not result in a different compound.

QUESTION POSTED AT 01/06/2020 - 03:51 PM

### What is electronegativity? A. a measurement of the ability of an atom to attract a proton B. a measurement of the ability of an atom to attract a neutron C. a measurement of the ability of an atom to attract an electron D. a measurement of the ability of an electron to attract another electron

QUESTION POSTED AT 01/06/2020 - 03:50 PM

### Which of the following is not used to determine the brightness of a star? a) How far away the star is b) The size of the star c) The location of the star in the night sky d) How much light the star is giving off

QUESTION POSTED AT 01/06/2020 - 03:49 PM

### If you have significant concerns about a child's development, you should A. sensitively present your concerns to the family and see if they're ready to talk about next steps. B. complete the special education evaluation to determine whether the child has a disability. C. talk with the child's physician about your concerns. D. refer the child to a special education provider in your community.

QUESTION POSTED AT 01/06/2020 - 03:11 PM

### Use the chart to determine which atom in the carbon–chlorine bond is assigned the delta negative charge. A.carbon atom B.chlorine atom C.neither atom D.both atoms

QUESTION POSTED AT 01/06/2020 - 03:06 PM

### What scientific tool would be the most helpful when measuring the temperature of a substance that is undergoing a phase change? A. a spectrophotometer B. a thermometer C. the periodic table D. a scale

QUESTION POSTED AT 01/06/2020 - 03:00 PM

### Adjustments to timber management strategies meant to address long-term shortfalls will _______. a. result in immediate increases in available supplies b. lead to initial shortfalls in timber supplies c. initially decrease the cost of timber d. ultimately result in more expensive timber

QUESTION POSTED AT 01/06/2020 - 02:55 PM

### If you are planning a trip to a nearby town , which unit will be best to measure distance

QUESTION POSTED AT 01/06/2020 - 02:43 PM

### A student conducts an experiment to determine how the amount of water given to a plant affects its growth. What is the independent variable for this experiment? a. the amount of water b. the height of the plant c. the amount of sunlight d. the amount of soil

QUESTION POSTED AT 01/06/2020 - 02:10 PM

### 2.524 g (5.1 × 106 g) ÷ (6.85 × 103 g) = ? How many significant figures should the result have?

QUESTION POSTED AT 01/06/2020 - 02:04 PM

### The minimum number of seismograph stations necessary to determine the location of an earthquake’s epicenter is

QUESTION POSTED AT 01/06/2020 - 02:01 PM

### A sample of 35.1 g of methane gas has a volume of 5.20 l at a pressure of 2.70 atm. calculate the temperature of the gas.

QUESTION POSTED AT 01/06/2020 - 01:38 PM

### Determine the correct set of coefficients to balance the chemical equation. __c6h6(l) + __o2(g)? __co2(g) + __h2o(g)

QUESTION POSTED AT 01/06/2020 - 01:19 PM

### A compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen (by mass). calculate the empirical formula.

QUESTION POSTED AT 01/06/2020 - 01:12 PM

### All the following can result in the disruption of a protein's ability to function, except A. mechanic agitations. B. maintaining the protein's shape. C. high temperatures. D. extreme pH conditions.

QUESTION POSTED AT 01/06/2020 - 12:21 PM

### Determine how many moles of Ba(OH)2 are required to completely neutralize 0.427 mole of HC2H3O2.

QUESTION POSTED AT 01/06/2020 - 12:07 PM

### What is the volume of a cube that measures 2 cm on each side?

QUESTION POSTED AT 29/05/2020 - 05:19 PM

### Calculate the mass defect for the isotope thorium-234

QUESTION POSTED AT 29/05/2020 - 04:50 PM

### 0.0136 g + 2.70 × 10-4 g - 4.21 × 10-3 g = ? How many digits to the right of the decimal point should be used to report the result?

QUESTION POSTED AT 29/05/2020 - 04:28 PM

### Which atomic model was proposed as a result of J.J Thomsons work?

QUESTION POSTED AT 29/05/2020 - 04:03 PM

### Mass can be measured in which of the following? grams , meters, liters , both A and B

QUESTION POSTED AT 29/05/2020 - 03:57 PM

### Which best describes accuracy? the smallness of the graduations on a measuring tool the reproducibility of a measured value the dependence of a measured value on a controlled value the agreement between a measured value and an accepted value

QUESTION POSTED AT 29/05/2020 - 03:42 PM

### How many grams of potassium chloride must decompose to produce 69.9 milliliters of potassium metal, if the density of potassium is 1.78 g/mL? Show all steps of your calculation as well as the final answer.

QUESTION POSTED AT 29/05/2020 - 03:38 PM