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: Most chemistry laboratories have balances that can weigh to the nearest milligram. Would it be…

A: Given,  Molecules of C18 H38 = 5.88E+18 molecules The mass of C18 H38 is:

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol…

A: the given reaction., C6H12O6 -----> 2C2H5OH + 2CO2 Molar mass of glucose = 180 g/mol Given Mass…

Q: If the density of ethanol is 0.789 g/mL, how many cm3 can be produced by the fermentation of 45.4 kg…

A: Ethyl alcohol is formed by enzyme action on sugars and starches by fermentation. C6H12O6 → 2 CO2 + 2…

Q: |\ S ১ 0SS 0 ५, ४)0° atonas of gold, Au?

A: As we know that, 1 mole of Ag contains 6.022 × 1023 atoms. Therefore, 4.50 × 1022 atoms will have  =…

Q: A website promoting the use of alternative energy vehicles and hybrid technologies claims that, "A…

A: Gallons original quantity = 40 gallons CO2 produced from 40 gallons = 750 lbs. Gasoline primary…

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: The mass of a single strontium atom is 1.46x10-22 grams. How many strontium atoms would there be in…

A:

Q: What volume (in Liters) of nitrogen gas (N2) is equal to 3.42x1022 molecules of this substance?

A:

Q: 7. K,CO, # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The #3 is a…

A: Molecule is made of combination of several atoms of elements. In the given scenario, we have to look…

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: 200 g of a silicon compound is decomposed, resulting in 41 g of solid silicon and the remainder of…

A: Calculate the number of moles of both the compounds. nSiClF3 = WSiClF3MSiClF3nSiClF3 =200 g120.5…

Q: If 10.11 g of limestone decomposes by heat to give 8.51 g of solid calcium oxide and carbon dioxide…

A: Limestone is a type of carbonate sedimentary rock which is composed 0of the minerals calcite and…

Q: If 101.10 g of limestone decomposes by heat to give 85.10 g of solid calcium oxide and carbon…

A:

Q: A compound is isolated from the rind of lemons that is found to be 88.14% carbon and 11.86% hydrogen…

A: Given that the sample contain 88.14% carbon and 11.86% hydrogen by mass.That means in 100 g sample…

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A:

Q: Green plants use light from the Sun to drive photosynthesis, a chemical reaction in which liquid…

A: Mole ratio - Is the ratio between amount in moles of any two compound involved in a chemical…

Q: 1. Formula of anhydrous salt ........ ........ 2. Mass of empty dry crucible and lid 19.219.8 3.…

A: 6) Mass of hydrate = Mass of crucible,lid and hydrate before heating(3) - Mass of empty dry crucible…

Q: In a given alloy of Nb-Vd: * in the given 24 wt % Nb - 76 wt % Vd alloy with the density of the pure…

A: Given: Mass of Nb in 100 g alloy = 24 g Mass of Vd in 100 g alloy = 76 g Density of pure Nb = 8.57…

Q: Imagine that you are the CEO of a mining company. Your employees were able to excavate 2 ores,…

A: Metallic iron may be cheaply recovered from iron ores, which are rocks and minerals. Iron oxides…

Q: Wine goes bad soon after opening because the ethanol (CH,CH,OH) in it reacts with oxygen gas (0,)…

A: The reaction taking place is  C2H5OH + O2 -------> CH3COOH + H2O

Q: Calculate the number of oxygen atoms in a 60.0 g sample of diphosphorus pentoxide (P,O,). Be sure…

A:

Q: Data Table 51.589 3.053g 54.639 Mass of empty crucible Mass of hydrate Mass of crucible and salt…

A: Given: Mass of empty crucible = 51.58 g Mass of crucible and salt before heating= 54.63 g Mass of…

Q: 6.35 x10 to the 22nd power molecules of H2SO4 then how many grams of H

A: Number of mole and number of particles are related to each other as follows:Where, NA is avogadro’s…

Q: A chemist has a sample of hydrated alum powder KAI(SO,), it weighs 3.200 grams. She heats it…

A: The amount of KAl(SO4)2 originally present is equal to the amount of anhydrous compound i.e. 1.741…

Q: The chemical formula for diethyl amine is: (CH;CH,),NH Calculate the molar mass of diethyl amine.…

A: The chemical formula of diethyl amine is given as (CH3CH2)2NH.

Q: Assume that the ratio of moles of Cl to moles of Cu are 2.7.  If we can represent the formula by…

A:

Q: DNA crystals are 0.144nm^3. What is the volume in milliliters?

A: Given volume of DNA crystal is 0.144 nm3. We have to convert the volume to mililiters.

Q: When Kay added 30 g of hydrochloric acid (HCI) to 65 g of Zn, bubbles appeared and a white…

A: We know, when Zn reacts with HCl, it will produce ZnCl2 and H2 following the reaction  Zn + 2HCl…

Q: Commercial solvents are commonly sold in 55-gallon drums. What is the weight in pound of the carbon…

A: Volume of the solvent = 55 gallon Volume of solvent in cc = 208198 cm3 (since 1 gallon = 3785.41…

Q: How many C atoms are present in the sample of C3H8 with mass 7.11 g? Avogadro's number is 6.022 x…

A: Given : Mass of C3H8 = 7.11 g

Q: As part of the aspirin synthesis lab the orgo students also had to perform the following calculation…

A: For determining the amount of product, the mole ratio of reactants in a balanced reaction must be…

Q: You must show calculations in the space pr receive credit. he line to 1. The following data was…

A: Given, Mass of crucible = 24.525g. Mass of crucible and mixture = 26.716g. Mass of crucible and…

Q: When the equation _NH, +_0, →_HNO, +_ H,0 is completely balanced using smallest whole numbers, the…

A: Find the solution below

Q: A standard aspirin tablet contains 325 mg of aspirin, which has the molecular formula C9H8O4. How…

A: The number of moles of a substance is the ratio of its given mass by molar mass of the substance. It…

Q: Combustion of hydrocarbons such as hexane (C6H₁4) produces carbon dioxide, a "greenhouse gas."…

A: 1) we need to write balanced equation for combustion of hexane

Q: Use the References to access important values if needed for this question. Calculate the number of…

A:

Q: Carbon disulfide gas and oxygen gas react to form sulfur dioxide gas and carbon dioxide gas. What…

A: 1.22cm3 of oxygen were consumed.  We know 1.22cm3 = 1.22ml  =  1.22 x 10-3L

Q: o prepare a solution of NaCI, you weigh out 2.634 (±o.002) g and dissolve it in a rolumetric flask…

A: We have to find out the , Molarity of the solution, along with its uncertainty, with an appropriate…

Q: How many grams of carbon dioxide can form when a mixture of 7.40 g ethylene (C2H4) and 7.70 g of…

A:

Q: In compounding a prescription, a pharmacist weighed 0.05 g of a substance on a balance insensitive…

A: We have, Weight of the substance measured = 0.050 g Smallest quantity that can be measured = 0.004 g…

Q: A major component of gasoline is octane (C,H,s). When liquid octane is burned in air it reacts with…

A:

Q: The sugar content of a wine is determined five times, and the following results obtained: 150, 155,…

A: An outlier can be determined using Q-test.

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

A: Molar ratio basically exhibits the proportion carried by distinct atoms available in one compound.…

Q: What is the mass of a golf ball traveling at 74.6 m s-1? The rest mass of a golf ball is 45.9 g, as…

A:

Q: Ammonlum phosphate ((NH,),PO, Is an Important Ingredient In many fertilizers. It can be made by…

A: Given: Mass of phosphoric acid: 6.45 g To Calculate: Mass of ammonium phosphate produced

Q: 9. Na Cro, # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The #4 is a…

A: 9) Na2CrO4 =  Number of molecules = 1 Number of elements = 3 Name of elements Number of atoms…

Q: d) c, and (e) p? red quantities: (a) 351 g,

A:

Q: Avogadro’s number is so large that the only way to visualize it is through analogies. For example,…

A: Given : Entire volume of US = 6.9 X 109 Km3  And volume of one orange = 1.4 X 10-14 Km3  Since the…

Q: If a chemist were given 2.99 grams of a mixture of sugar and sand which gave 1.35 grams of sand on…

A: Given : Mass of mixture = 2.99 g Mass of sand = 1.35 g

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.