A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. 2 „²). []² (-4.9 × 10¹ Pa mm² 2 = ? Pa m 口。 ☐☐ X μ 00

Q: A chemist adds 370.0 mL of a 4.8 × 104 mmol/L magnesium fluoride (MgF₂) solution to a reaction…

A: Answer:Number of moles of a specie in a solution is equal to the product of its molar concentration…

Q: For the following reaction, calculate the value of Q. 2A 1B +3C [A] = 0.53 [B] = 0.24 [C] = 0.20

A: Given,

Q: Indicate how many significant figures there are in (a) 0.305 0 (b) 0.003 050 (c) 1.003 X 104

A: a.  0.3050 Number of significant figure:  4   b.  0.003050 Number of significant figure:  4

Q: A chemist prepares a solution of copper(II) fluoride (CuF,) by weighing out 0.0245 g of copper(II)…

A: Given: mass = 0.0245 g volume = 50 mL = 0.5 dL we have to determine the concentration of copper…

Q: The volume of water in large scale reservoirs is often measured in units of an acre-foot, which is…

A: 1 acre-foot = 43,560 ft³ 1 US liquid gallon = 231 cubic inches 1 US liquid gallon = 3.785 liters 1…

Q: An organic chemist measures the temperature I of a solution in a reaction flask. Here is the result.…

A: Given,Temperature ( T ) = 29.6 0C

Q: Dust falls on Chicago at a rate of 65 mg m-2 day-1. Major metallic elements in the dust include…

A: Given data is  Rate of fall of dust on Chicago=65 mg m-2 day-1 Rate of accumulation of Lead=0.029 mg…

Q: You weigh a crucible empty to be 44.181 g. You add Mg and weigh the crucible and Mg together to be…

A: Given : Mass of crucible = 44.181 g And mass of crucible with Mg = 44.421 g

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3 (Si,O;),(OH), An…

A:

Q: A chemist adds 415.0 mL of a 9.84 × 10 "M magnesium fluoride (MgF2) solution to a reaction flask.…

A:

Q: Gold, which has a density of 19.32 g/cm^3 , is sold by the troy ounce (abbreviated oz t). Which is…

A: We have to calculate the volume of 0.55 oz t gold

Q: A chemist adds 355.0 mL of a 1.81 × 10 umol/L mercury(I) chloride (Hg, Cl,) solution to a reaction…

A: Moles of Hg2Cl2 added = concentration X volume of solution in L Since volume of solution in L =…

Q: A chemist prepares a solution of sodium thiosulfate (Na, S,03) by measuring out 188. g of sodium…

A:

Q: A chemist prepares a solution of zinc oxalate (ZnC,0,) by weighing out 0.837 kg of zinc oxalate into…

A: we need to report the answer in g/dL concentration = mass of solute (in g )/ volume ( in dL) mass of…

Q: In the year 2013, an estimated amount of 36 billion metrictons (1 metric ton = 1000 kg) of carbon…

A: solution- 1 metric ton =1000 kg 1 kg = 1000 grams  metric ton conversion into grams ; 1 metric ton…

Q: In microbiology, dilutions are critical for getting a countable number of microbes to grow on a…

A: Initially, the volume of solution to be taken having colonies of 50×106 (M1) is 1 mL (V1). The final…

Q: How many significant figures are there in each of the following measurements?   (a) 4.380 x 10-8 m…

A: To find: The number of significant figure present in the given numbers.

Q: A barometer is filled with a cylindrical column of mercury that is 76.0 cm high and 1.000 cm in…

A: Volume of a cylinder is given by the equation,

Q: Calculate these masses.(a) What is the mass of 4.00 cm3 of sodium, density = 0.97 g/cm3 ?(b) What is…

A: (a)

Q: A student is asked to make up a 16% sodium chloride solution. She makes the solution by weighing an…

A: Given :  Weight of empty beaker = 98.5 gm  Weight of the beaker and sodium chloride = 114.71 g…

Q: A chemist adds 450.0 mL of a 1.0 mol/L barium acetate (Ba (C,H,0,),) solution to a reaction flask.…

A: Volume of solution = 450.0 ml  ...Or  because 1L = 1000 ml    ....so, 450.0 ml × (1L / 1000 ml ) =…

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.