graduated cylinder weighs 35.825 g. When 10 mL of water is measured in it, the weight of the graduate and water is 45.835 g. Calculate the weight of the water, and express any deviation from 10g as percentage of error.

Q: Use significant figures to express the inherent uncertainty in measured quantities and in…

A: The uncertainty in a measurement is an estimate of the amount by which the measurement result may…

Q: The following data were gathered during an experiment on the Analysis of Milk :…

A: Weight of milk sample is equal to the difference in the weights of milk sample and beaker and mass…

Q: what is the measurement, uncertainty, and nuber of significant figures?

A: Interpretation - To explain the measurement, uncertainty and number of significant figures in the…

Q: 15. In preparing a certain ointment, a pharmacist used 28.35 grams of zinc oxide instead of the 31.1…

A: Given, mass of zinc oxide (used) = 28.35 g mass of zinc oxide (required) = 31.1 g

Q: Bernard weighs a jar of pennies to find out how much they are worth. After subtracting the weight of…

A: The maximum weight of the pennies is equal to 9.4 + 0.16 kg = 9.56 kg. One kilogram is equal to 1000…

Q: Amaterial will float on the surface of a liquid if the material has a density less than that of the…

A: Given,

Q: If the density of water = 1.000 g/mL, determine true volume of water in a 10 mL grad cylinder filled…

A: The volume of water can be calculated from the density and mass of water.  The true volume of water…

Q: If all volume measurements were made with graduated cylinders instead of pipets, how would the…

A: This can be explained by the extend of the accuracy of graduated cylinders and pipets. When the…

Q: Using your knowledge of metric units, English units, and theinformation on the back inside cover,…

A: a) mm to nm    1 mm= 1mm x10-3m1 mmx 1 nm10-9m    1 mm = 106 nmb) 1 mg= 11000000kg            =…

Q: Explain the difference between random error and systematic error.

A: A mistaken result or false result obtained in an experiment or study is termed as error. Error is…

Q: The average radius of a molecule of lysozyme, an enzyme in tears, is 1.430 nm. What is its radius in…

A:

Q: A student experimentally determines the density of water to be 0.9955 g/mL. The reported density of…

A:

Q: Differentiate between Precision and Accuracy?

A: Solution :    Accuracy and precision play a very important role in determining the measurement of an…

Q: In the UV assay of paracetamol you are required to weigh tablet powder “…containing 0.150 g of…

A: Answer : 1 tablet should contain  500 mg of paracetamol so  20 tablet contains  = 500*20 = 10000 mg…

Q: Q3WThe density of a waste water was 84 lbm/ft' in a waste treatment pond of 5000 cm long and 1500 cm…

A: Given data :  Density = 84 lbm/ft3 = 84 *  0.45359 * (3.2808)3 = 1345.49 kg/m3 Long = 5000 cm = 50 m…

Q: An object weighs exactly five grams on an analytical balance that has an accuracy of 0.1 mg. To how…

A: The weight to be measured is 5g Accuracy = 0.1g

Q: The following four measurements were made for an objectwhose true mass is 4.56 g.4.55 g, 4.56 g,…

A: The given values of the measurement are 4.55 g, 4.56 g, 4.56 g, and 4.57 g. The true value of the…

Q: In 1993 the Minnesota Department of Health set a health risk limit for ethyl ether in groundwater of…

A:

Q: 1. Complete the following statement: Data that have a large systematic error can still be  a.…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: How are systematic method errors detected?

A: Systematic method error is a kind of systematic error. It will have a different calculated mean…

Q: Five students used the same ruler to measure the length of the same pencil. These are their results:…

A: a. Given data : The results of the five students are given below : 15.34 cm, 15.33 cm, 15.34 cm,…

Q: 3) For the results, discuss the significance of the following in terms of accuracy or precision: a)…

A:

Q: A student estimated that the volume of a crucible was 28.6 mL. When the volume was accurately…

A: percentage error is given by  % error = (experimental value - actual value ) X 100 / actual value.

Q: The following statements are correct regarding errors except: O Detection of systematic method error…

A: There is one incoorect statement in the given 5 statements . We have to tell that incorrect…

Q: An object has a mass of exactly 5 g on an analytical balance that has an accuracy of 0.1 mg. To how…

A:

Q: The standard definition of a quart is equal to 947 mL. Calculate the percent error of a student's…

A: Given  Actual value of quart=947 mL The measured value of quart=938 mL Percent error has to be…

Q: A vernier caliper was used for taking the diameter of a sphere of unknown material. The radius…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A graduated cylinder is filled to the 40.00−mL mark with a mineral oil. The masses of the cylinder…

A: Density of oil can be determined from experiment 1 as follows,

Q: A student estimated that the volume of a crucible was 28.6 mL.  When the volume was accurately…

A: Percent error can be calculated using the following formula.

Q: A group of students took turns using a laboratory balanceto weigh the water contained in a beaker.…

A: A group of students took turns using a laboratory balance to weigh the water contained in a beaker.…

Q: What is the difference between a qualitative and quantitative measurement?

A: The difference between a qualitative and quantitative measurement it to be explained. Qualitative…

Q: 2000 00010 A student has been asked to calculate the mass of an unknown liquid. He used a 10.00 mL…

A: Calculate the average mass:

Q: How many picograms are there in 3290 kg?

A:

Q: What is the percentage of error in a measurement when the experimental value is 3.80g and the true…

A: Percentage of error = (Experimental value - True value)True value×100%

Q: 1. (2×103g +7.613g)/(0.069cm3 - 0.033cm3) Carryout that operation as if it was the calculation of…

A: The given calculation is of division.The numerator part is addition and the denominator part is…

Q: over a course of multiple trials a student measures the density of methanol to be 0.707 g/mL, 0.799…

A: Average density is the mean of all the densities i.e. ( sum of all three densities / 3 )  .…

Q: The density of a metal is calculated to 8.9377 g/cm3, using weight and volume measurements. The +…

A:

Q: I measured a line that was 8.4 centimeters which is the same as 3.375 inches. How do I calculate the…

A: The relative percentage error is equivalent to the algebraic ratio between the difference measured…

Q: Kerosene is added to a graduated cylinder until the kerosene level is 20.73 mL, and the mass of the…

A:

Q: An analyst weighs the same tablet three times on a well calibrated analytical balance and obtains…

A: Environmental changes, such as in temperature or humidity. Exposure to harsh conditions, such as…

Q: A loss of 0.4 mL of Zinc occurs in the course of an analysis to determine that element. Calculate…

A: Given that in an experiment involving Zn there is a loss of 0.4 mg of Zn. We need to calculate the…

Q: A certain analytical method for the determination of lead yields masses for lead that are low by 0.5…

A:

Q: thickness

A:

Q: The pharmacist weight 800 mg of a substance on a balance of dubious accuracy. When checked on a…

A: Percent error is defined as the ratio of absolute value (modulus) difference of true value and…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.