Urea, chemical formula (NH,)½CO, is used for fertilizer and many other things. Calculate the number of N, C, O, and H atoms in 1.68 x 10* g of urea. Enter your answers in scientific notation. (a) Nitrogen, N x 10 atoms (b) Carbon, x 10 atoms (c) Oxygen,. x 10 atoms (d) Hydrogen, H x 10 atoms

Q: For the following reaction, 4.48 grams of carbon (graphite) are allowed to react with 16.5 grams of…

A: Since each question is different, we solve only first question according to the Bartleby guidelines.…

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: student needs to produce 26.18 grams of nitrogen gas (N2) for a lab experiment. How many grams of…

A:

Q: The “lead” in lead pencils is actually almost pure carbon and the mass of a period mark made by a…

A: Answer = 5.02 x 10 19

Q: (N),PO.) hate is an important ingredient in many solid fertilizers. It can be made by reacting…

A: Balanced chemical reaction,  H3PO4 + 3NH3 ----> (NH4)3PO4 3 mol of NH3 gives = 1 mol (NH4)3PO4…

Q: Fe(s) reacts with O2(g) to produce iron(III) oxide. Consider the reaction of 0.626 mol Fe with 19.20…

A:

Q: Calculate the following.  number of atoms in 8.21 g Li number of atoms in 32.0 g Br2 number of…

A: Solution [1.]  Mass of Li = 8.21 g Molar mass of Li = 7 g/mol So, no. of moles of Li = Mass / Molar…

Q: 1

A: Moles of propane = ( molecules of Propane / avagadro number )  Moles of propane = ( 3.45 • 10^24 /…

Q: The cullinan diamond was the largest natural diamond ever found (january 25 , 1905 25, 1905). It…

A: Use formulas Mole=mass÷molar mass Total atoms=mole×6×1023 MOLAR mass of diamond= 12g/mol

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: What is the mass in grams of 6.91x 1015 chromium atoms? Put your answer in box in scientific…

A: Given,No of atom of Cr= 6.91* 1015 We have to find out the mass of Cr in grams.

Q: Determine the mass in grams of 5.53 × 1021 atoms of arsenic. (The mass of one mole of arsenic is…

A: Answer:- Firstly using the given number of atoms of arsenic, moles are calculated. Then using the…

Q: An unknown compound has the following chemical formula: N_xO where x stands for a whole number.…

A:

Q: An unknown compound has the following chemical formula: Fe(NO,), where x stands for a whole number.…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: 7. State the chemical composition (constituent elements and number of atoms of each element) for a…

A: Given  is a molecule of citric acid whose molecular formula is C3H4OH(COOH)3.  Chemical composition…

Q: An unknown compound has the following chemical formula: Co(OH), where x stands for a whole number.…

A: Co(OH)2 No. of moles of Oxygen = 9.1 moles = No. of moles of Hydrogen No. of moles of Co = 4.5 mol…

Q: A student used the Procedure of this experiment to determine the formula for an oxide of tin (Sn).…

A:

Q: Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom and…

A: Given :  Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom…

Q: why at the end do you write mass of O2, but then didn't do 32g as the multiplier?

A: To calculate mass of O2 , first moles are calculated and then 32.0 g/mol would be used as multiplier…

Q: I already received help with A, B, and C but I still need the explanation and solution to subpart D.…

A: 1 mole = 6.023 * 10^23 atoms = Avogadro No

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: The chemical formula for acetic acid is CH₃COOH. In each mole of acetic acid, there are;2 Moles of…

Q: Consider the balanced chemical reaction shown below. 4 NH3(g) + 5 O2(g) 4 NO(g) + 6 H2O(g) In a…

A:

Q: a) What is the mass of iron (in grams) contained in 87.14 g of an iron ore which is 80.00% hematite,…

A: Following is the appropriate answer of the given question. Since it is a multiple type questions,so…

Q: Suppose that mercury forms a perfect spherical droplet with a diameter of 5.0 mm. (a) What is the…

A: Density is given by the ratio of mass of the substance to its volume. 1 mole of a substance contains…

Q: (b) Describe fully how an ionic bond is formed.

A: Chemical bonds are of the following types  Ionic or electrovalent bond Covalent bond Dative or…

Q: (CH;(CH),CH;)• CH; reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO,) and…

A: Given values -> Weight of octane = 107.36 gm Weight of O2 = 507.58 gm

Q: Calculate the number of oxygen atoms in a 100.0 g sample of scheelite (Ca WO,). Be sure your answer…

A: Number of moles of a compound is equal to the mass of substance divided by its molar mass.

Q: A substance is 10% carbon by mass. If the total mass of substance is 25 grams, (a) what is the mass…

A: It is based on the concentration terms. Here we are required to find the mass of carbon present in…

Q: What is the mass, in grams, of 9.53 x 10" molecules of methanol (CH, OH) ? mass:

A:

Q: If the density of Al metal in aluminum is 2.699g/cm3, estimate the number of atoms/cm2 in a foil…

A:

Q: Methanol (CH3OH) can be produced by the reaction of carbon monoxide (CO) with hydrogen (H2). The…

A: For the given reaction:Amount of CO(g) =23.685 gAmount of H2(g) = 3.095g

Q: Ammonium phosphate ((NH,) PO,) is an important ingredient in many fertilizers. It can be made…

A:

Q: Some hypothetical metal has the simple cubic crystal figure shown. If its atomic weight is 74.5…

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Q: Assuming gasoline to be pure octane, C8H18 (actually, it is a mixture of many substances), an…

A: An automobile getting 22.7 miles per gallon would consume 5.10x10^23 molecules per mile. Find out,…

Q: 5. A bottle of Ibuprofen (C,,H,,O,) contains 1.204 x 1024 molecules. How many grams of ibuprofen are…

A: The molecular weight is 206.29 g/mol means 1 mol of ibuprofen = 206.29 g of ibuprofen

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to…

A: The mass percentage of an element in a particular compound can be found by dividing the atomic mass…

Q: A 3.06 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: “Since you have posted multiple questions, we will provide the  solution   only to the first…

Q: A 2.78 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: One of the compounds used to increase the octanerating of gasoline is toluene(right).Suppose 20.0 mL…

A: The given data contains , volume of toluene =20 ml Density of toluene =0.867 g/ml

Q: 2KCIO,(s) 2KCI(s) + 302g) If 17.8 g of potassium chlorate is heated and decomposes, find the mass of…

A:

Q: Calculate the number of oxygen atoms in a 120.0 g sample of scheelite (CaWO4). Be sure your answer…

A: Given mass of Scheelite CaWo4=120.0gMolar mass of Scheelite CaWo4=287.9 g/mol∴ Number of moles of…

Q: A student needs to produce 28.88 grams of nitrogen gas (N2) for a lab experiment.  How many grams of…

A: Mass of nitrogen produced = 28.88 g The reaction is ., NH3 -->  N2 + H2 The molar mass of NH3 =…

Q: IV (intravenous) solutions are mixtures of sugars, salts and other aqueous solutes fed directly to a…

A: Answer

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.