22.1 kg Fe (NO3) 2 Express your answer to three significant figures and include the appropriate units. HA ? NFe(NO,), = Value Units %3D 0.7288 g Cs H18 Express your answer to four significant figures and include the appropriate units. HA Value Units %3D

Q: 1. A 50.00 g sample of a solid is placed into a graduated cylinder and then the cylinder is filled…

A: Given, mass of a sample of solid = 50.00 g            volume of cylinder filled = 100.00 mL…

Q: 1. 27 JJ to calories Express your answer using two significant figures.    2. 5300 JJ to kilojoules…

A:

Q: The density of water is 0.998 g/cm³. What is the density of water in tons/yd°? Note: 1 ton = 2000…

A: Given -  Density of water = 0.998g/cm3  1 ton = 2000 lb 1 lb = 453.6g  1 inch = 2.54 cm  1 inch =…

Q: The base unit for volume in the metric system is the liter. 1 ul= L. 10 10 10 10

A: The given volume is = 1 μ L And we are going to convert this volume into a liter unit. The…

Q: Use the References to access important values If heeded for this question. Write each of the…

A: Given :-  8.89 × 10-3  7.77 × 104  7.71 × 103  8.06 × 10-5  To write :-  Above value in 3…

Q: The density of carbon tetra chloride is 1.60 g/cm cubed. What is the density of the liquid expressed…

A:

Q: Ammonia (NH3) chemically reacts with oxygen gas (0₂) to produce nitric oxide (NO) and water (H₂O).…

A: The mass of oxygen gas is 8.30 g.The balanced chemical equation for the given reaction is:.The molar…

Q: A student is given the following question: "What is the mass of a gold bar that is 7.379 x 1o 4m3 in…

A:

Q: A major component of gasoline is octane (CH18). When octane is burned in air, it chemically reacts…

A:

Q: LL of solution         Express your answer using three significant figures.   11.65 mgmg KIKI in…

A: Molar mass(MM) of C2H6O = 46 g Mass of C2H6O =72.2 g  Mole = mass/MM       = 72.2/46 = 1.57 mol…

Q: 3. Complete the blanks in each row, as in the first example: Unit name Property measured Unit symbol…

A: Unit name: microgram The property measured: mass Unit symbol: μg Power prefix: 10-6

Q: a. 14.8 g = ? ug b. 3.72 g = ? kg %3D C. 66.3 L ? cm

A: Note : as per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: If 20.0 Cal make an ounce, how many ounces of formula should a baby drink per day if the energy need…

A: 1 ounce = 20.0 cal Since per day a baby drink 1.50 ×103 cal No of ounces = 1.50 ×103/20 = 75

Q: Complete each of the following calculations, and give your answer to the correct number of…

A: Answer:In the given problem we have to perform the fundamental mathematical operations and have to…

Q: I want to know if there is a chart to go by to know how to convert metric systems and SI units for…

A:

Q: 8. Do the following calculations. Be sure your answers have the correct number of significant…

A:

Q: 1) Convert 73.5 F to Celsius. Report your answer with the correct number of significant figures.…

A: 1) Given : Temperature in oF = 73.5 oF

Q: Ketamine, sometimes used as an adjuvant to general anesthesia, is available as a 1.0 % (w/v)…

A: We have to calculate mass of ketamine

Q: Gallium is a solid metal at room temperature but melts into a liquid in your hand. The melting point…

A:

Q: What is the percent by mass NaCl of a solution that contains 85.1 grams of NaCl and 119.1 grams of…

A: Percentage by mass (% m/m or % w/w )=mass of solutemass of solution×100%

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A:

Q: 1)  1892.5 mL (2) Using your result in question (1), determine the mass in grams of 0.50 Gal of ice…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: perform the following calculation, reporting your answer to the correct number of significant…

A: Significant figures of a number are  necessary to indicate the quantity of something. It is also…

Q: 1.  A 22.65-g sample of a solid is placed in a flask. Ethanol is added to the same flask having the…

A: Given that -  Mass of sample of a solid = 22.65 g  Volume of ethanol + solid = 45.00 mL  Mass of…

Q: Decide whether each proposed addition or subtraction of measurements sure every answer you enter has…

A: if the units are the same, we can add and subtract easily, but if the units are different, we cannot…

Q: Decide whether each proposed addition or subtraction of measurements is passible. If it is possible,…

A: To do addition or subtraction, the unit of each number should be the same or the units must be…

Q: Write 3.280x104 J as a normal, decimal number without any scientifc notation. Pay attetion to…

A: Correct option is C. 0.0003280 J.

Q: The product of 80.7 m x 5.01 m is _m². Express the answer with the correct number of significant…

A: We know that, while multiplying two numbers , the answer contains the same number of significant…

Q: Using rules for significant figures in calculations, divide 0.39 by the number 5.12. Choose the…

A:

Q: Use conversion factors with units canceling to calculate how many kilograms are in 2.5 x 103 mg. A/

A: Data

Q: How many seconds are there in 3.7 years? (Use 365 days/year) (You do not need to put in your units &…

A: The given time in the year is = 3.7 years The time in second is =?

Q: Wire 1 0.0404 0,610 Wire 2 0.0195 ? 0.0105 (r) (in) 0.0193 Length(in) 0.0114 O 0.0136 (lbs) ?…

A: The objective of the question is to calculate the density of wire  in kg/mL with the given data.

Q: What is the minimum mass of galena (PbS), a lead ore, from which 90.0 g of pure lead could be…

A: mass of lead = 90.0 gatomic mass of lead = 207.2 g/molmolar mass of PbS = 239.26 g/mol

Q: 2.4 mol Cu

A: Note : 1 mol of any element= 6.02 ×10^(23) atoms. Part (a) 2.4 mol Cu  So, 2.4 mol Cu =…

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.