A compound contains only nitrogen and oxygen.  Analysis of a/an 8.705 g sample of the compound reveals that the compound contains 5.013 grams of oxygen.  How many grams of nitrogen does the sample contain? Include the unit and three decimal places in your answer.

Q: A chemist adds 260.0 mL of a 2.9M zinc nitrate (Zn(NO,). solution to a reaction flask. Calculate the…

A: Given, molarity of zinc nitrate Zn(NO3)2 solution =2.9 Mvolume of solution =260.0 mL =0.26 Lwe are…

Q: When completely filled with water, the beaker and its contents have a total mass of 326.55 g. What…

A: Mass, density and volume of a substance is inter-related by the following formula Mass = Density ×…

Q: Which statement about a volumetric flask is correct?     Each volumetric flask has several…

A: Given statements: Each volumetric flask has several calibration marks (on the neck of the flask), so…

Q: You drop another bead into the column and observe that it makes it all the way to the bottom of the…

A: In the question we have given that a plastic bead and we dropped in column having four different…

Q: 3.34×1022 HeHe atoms Express your answer using three significant figures.

A:

Q: If the price of gold is 1227.00 dollars/oz what is the value of gold in the advertised coin? The…

A: we know 1oz = 28349.5mg

Q: If the US Mint buys 3.0 tons of copper for making quarters, how many quarters can it make?  Assume…

A: we know that  1us quarter = 5.670grams

Q: You add 297 grams of NaCl to a container and then you add 898 grams of water to that same container.…

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Q: The recipe for an ice cream sandwich is given below. 2 cookies + 4 oz ice cream = 1 ice cream…

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Q: Calculate the mass, in grams, at 25 °C of a) 60.0 mL of an unknown organic substance, which has a…

A: Given that : We have to calculate the mass ar 25°C of : a) 60.0 mL of an unknown organic substance…

Q: A chemist adds 1.10L of a 1.1mol/L calcium bromide CaBr2 solution to a reaction flask. Calculate…

A:

Q: You wish to prepare 193 grams of 8.25% (w/w) NaNO3. Assume that the density of water is 1.00 g/mL.…

A: In Question A)  Given 8.25%(w/w) of NaNO3  Means that 8.25g of NaNO3 is present in 100g of solution.…

Q: The density of an unknown substance is 3.95 g/mL. If the volume is 3.7, what is the mass of this…

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Q: You wish to prepare 217 grams of 19.7 % MnCl2. You will need_________________  grams of…

A: Mass of mgcl2= 42.74gm Voulme of H2O= 80.3ml

Q: there is a mole of water in a beaker. A student measures the weight of the 1 mole of water of 18.02…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: Determine the mass of oxygen in a 7.20-g sample of Al2(SO4)3. Express your answer in grams of oxygen…

A: Here, we have to find the mass of oxygen in a 7.20 g sample of Al2(SO4)3.

Q: Convert 5.8x10^24 atoms of ammonium chloride to grams of ammonium chloride. which one below is the…

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Q: A year ago I had a barbeque on March 1st.  I invited 16 friends to join me.  I planned to serve each…

A: Given that, Total friends =16 It is planned to serve each 1 hot dog, 2 hamburgers and 3 cans of soda

Q: geologist measures the weight of an ore sample. The weight is  2.2603kg. What is

A: We have to find weight in gram

Q: If you have a pOH of 3.65 the [OH-] would be _________ M.   You only need to type the number in…

A:

Q: A chemist adds  1.50L  of a  1.3 M zinc nitrate  ZnNO32  solution to a reaction flask. Calculate…

A: Volume = 1.50 L  Molarity = 1.3 M

Q: You add 344 grams of NaCl to a container and then you add 565 grams of water to that same container.…

A: Given : Weight of NaCl = 344 g               Weight of water = 565 g

Q: Which volumes below are equivalent to 3 mL. There may be more than a single answer. (1) 1…

A: We have to choose from the following given options have volume equivalent to 3mL as follows in step…

Q: wish to prepare 213 grams of 17.4% (w/w) NaI. Assume that the density of water is 1.00 g/mL. You…

A: Here we are required to find the mass of NaI and volume of water needed to prepare aqueous solution…

Q: You have 2.176 x 10° grams of large chicken eggs. Large chicken egg 689/ostrich 1s00 | Calculate the…

A: Grams of 1 large chicken egg =  between 63  to 73g , average weight = 68 gm Grams of 1 ostrich egg =…

Q: Sodium Nitrite, NaNO2, is a preservative for hotdogs. A ten pack of hotdogs contains 110 milligrams…

A: NaNO2, is a preservative for hotdogs. 10 pack of hotdogs contains 110 milligrams or 0.110 g of…

Q: If 12.3 grams of NaOH were mixed with 11.9 grams of HCl, how many grams of NaCl would be produced?

A: The balanced chemical reaction for NaCl formation is already provided: 1 mole of NaOH requires 1…

Q: Which of the following equations is set up to convert 312 mg to kilograms? 1 kg 1000 g 1 mg O a) 312…

A: 312 Milligram.  Milligram => mg Kilogram = kg and we have to convert into kilogram

Q: She measured the mass of the metal to be 197 grams. Then she dropped the metal into a measuring cup…

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Q: There are 3.76 × 1022 atoms in 1 gram of oxygen. How many atoms are there in 700 grams of oxygen?…

A: Given  Mass of Oxygen  = 1 gram  Number of atom =  3.76 × 1022 atom  Number of atom in 700 gram of…

Q: Iron is found in Earth's crust as several iron compounds Calculate the mass (in kg) of each compound…

A: Given :- mass of Fe in FeCO3 = 6.3 × 103 kg  To calculate :- mass of compound (in kg)    Molar mass…

Q: What are your sub-dilutions and what is your total dilution if you made the following serial…

A: Given that, the serial of dilutions 0.4/20×0.4/20×0.2/20. We have to calculate the values of…

Q: part 1 Which of the following is a best practice in weighing solid samples?   Use weighing paper,…

A: solid  sample  you can weigh it directly on the pan by using paper watchglass . Be sure the balance…

Q: A solution was prepared by dissolving 16 g of CaCl2 in 72g of water and has a density of 1,180 g /…

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Q: 5.66×1020 H2O2H2O2 molecules Express your answer using three significant figures.         mm =…

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Q: A pill that is 91.5% aspirin is found to contain 59.99 mg of aspirin. What is the mass of the pill…

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Q: A chemist adds 90.0 mL of a 4.78 × 10 μM mercury(II) iodide (HgI₂) solution to a reaction flask.…

A: Given, Note: 1 mL = 10-3 L Volume of the solution = 90.0 mL = 0.09 L Note: 1 μM = 10-6 M molarity of…

Q: There are 1,760,000,000,000,000,000,000 molecules of sugar in a gram. Use scientific notation to…

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Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

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Q: Determine the mass of oxygen in a 5.8-g sample of sodium bicarbonate (NaHCO3). Express your answer…

A: Given; Mass of sodium bicarbonate (NaHCO3) = 5.8 g Mass of oxygen (O) = ? Note: Molar mass sodium…

Q: Identify the choice that best completes the statement or answers the question. What is the mass in…

A: Given, 1 pound = 454 g Therefore, 25 pounds = (454 x 25) g = 11350 g We know, 1000 g = 1 kg…

Q: A medium-sized carrot weighs 61 g and contains 6.0 g of carbohydrate.   Part A What percent, by…

A: Given : Mass of carbohydrate in carrot = 6.0 g Mass of carrot = 61 g

Q: chemist adds 0.50L of a 1.3M barium acetate (Ba(C2H3O2)2) solution to a reaction flask. Calculate…

A: given data ; Volume of solution =0.50 L  molarity of solution = 1.3M

Q: A chemist adds 160.0mL of a ×6.510−5μM silver(II) oxide AgO solution to a reaction flask. Calculate…

A: The given information is: Volume of solution = 160.0 ml Molarity of solution = 6.5 x 10−5μM = 6.5 x…

Q: How many gold atoms are in a 0.500 ounce, 18 K gold bracelet? (18 K gold is 75% gold by mass.)…

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Q: A block of aluminum is 25.5 mm x 2.63 cm x 0.835 cm high. How much would it weigh? Show your work.

A: Given : Length = 25.5 mm  Width = 2.63 cm  And height = 0.835 cm  Since 1 cm = 10 mm Hence length in…

Q: Can I get some hel with this?

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Silver solder is a mixture of 40 % tin, 40% silver, 14% copper, and 6% zinc. If you have 60 grams of…

A: Calculation of mass of tin in silver solder                   mass of tin in 60 g silver…

Q: The inside of a car on a hot summer day is 55.3 C. A balloon with a volume, inside the car of 755 mL…

A: Given,      T1 = 55.3℃  = (55.3 + 273) = 328.3 kelwin             V1 = 755 ml     T2 = 21.7℃ = (21.7…

Q: The owner of a rock shop claims that a nugget is pure gold.  When the nugget is placed into a…

A: Given that : The initial volume in the graduated cylinder = 50.0 mL The final volume in the…

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.