Calculate the mass in grams of 71.8 mol of chromium(III) sulfate decahydrate. Enter your answer in scientific notation

Q: rgahic compound has a gram molecular weight of 372 g/mol, and its composition is 38.6% carbon, 9.76%…

A:

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: Be sure to answer all parts. How many total moles of ions are released when the following sample…

A: To solve this problem we have to calculate the number of moles.

Q: A 52 kg woman has 8.6x10-3 mol of hemoglobin (molar mass = 65323 g/mol) in her blood. How many…

A: Given, moles of hemoglobin = 8.6 x 10-3 mol We know, => molecules of hemoglobin = moles of…

Q: A compound containing only carbon, hydrogen, and oxygen is analyzed using combustion analysis. When…

A:

Q: Mercury occurs as sulfide ore called cinnabar, HgS. How many grams of mercury are contained in 578…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,

Q: What is the mass, in grams, of 2.90x103 mol of ammonium phosphate? Express your answer using three…

A:

Q: The chemical formula for calcium hydroxide is: Ca(OH)2 Calculate the molar mass of calcium…

A: we need to calculate the molar mass of Ca(OH)2

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: In 1871, Mendeleev predicted the undiscovered element ekasilicon. In 1886, the element was…

A:

Q: How many molecules are present in one mole of water, H2O? Express your answer in scientific…

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: Water has a molar mass of 18.0 grams H2O per mole of H2O. How many moles of H2O are in 9.00…

A: Note: 1000 mg = 1 gmass of H2O = 9.00 milligrams = 0.009 gramsmolar mass of H2O = 18.0…

Q: How many moles of Ca2+ ions are present in 7.52 · 1020 Ca(OH)2 formula units? Express your answer in…

A: Given : Number of formula units of Ca(OH)2 = 7.52 X 1020

Q: What is the elemental composition of mercury(I) nitrate, Hg2(NO3)2? Report the mass percent of each…

A: Answer:- This question is answered by using the simple concept of calculation of percent of each…

Q: How many molecules are there in 54.6g of PF3? You will need to divide your answer by 1.0x10^23

A: Since we know that 1 mole of PF3  will contain 6.023 * 1023 molecules  i.e. is  equal to Avogadro no

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3 (Si₂05), (OH)2 An…

A: 1 mole of A2B2 contains 2 mole A and 2 mole B

Q: What is the molar mass of C7H1004? Express your answer in units of grams per mole. Provide your…

A: Given  Formula of compound = C7H10O4 Molar mass = ?

Q: How many molecules are there in 62.3 g of water? You will need to divide your answer by 1.0x10^23

A: Given:  Mass of water = 62.3 g

Q: Calculate the mass in grams of 6.12 mole Cu(NO3)2.

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: How many moles of CH4 are in 9.37 x 1023 molecules of CH4? Do not put units in your answer. Report…

A:

Q: Selenium dichloride, SeCl2, has a molar mass of 149.86 g/mol.  What is the mass in grams of 0.325…

A: Given, moles of SeCl2 = 0.325 moles molar mass of SeCl2 = 149.86 g/mol mass of SeCl2 = ?

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: How many moles of carbon atoms are there if there are 7.13 x 1023 atoms? Calculate your answers to 3…

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: How many carbon atoms are present in 5.400 x 10 * mol of carbon? Give your answer in scientific…

A: Here number of mole of carbon= 5.400 × 10-4 Mole We know  that  1mole=  Avogadro number…

Q: Maggie filtered out a sample of copper (II) chloride, CuCl2 from a local pond, and found its mass to…

A:

Q: How many C atoms are present in 8.94 · 1020 CH3C(O)H molecules? Express your answer in scientific…

A: Scientific notation is way to express the numbers that are too big or small to be written…

Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: 1: How many carbon atoms are present in a mole of ¹2C? 12 Express your answer using four significant…

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

Q: The chemical formula for lithium hydride is LiH. A chemist measured the amount of lithium hydride…

A: Moles = Mass / Molar mass  Moles of A = Mass of A / Molar mass of A

Q: Calculate the amount of  anions (in moles) in 8.6 g of magnesium perchlorate. Express your answer…

A: Magnesium perchlorate, Mg(ClO4)2 dissociates into three ions as given by the equation: Mg(ClO4)2 →…

Q: Convert 1.80 x 1024 formula units of copper (II) nitrate to moles. Express the answer by rounding to…

A: We know that ; 1 mol of substance contain  = 6.022 x 1023 formula units   By this we can calculate…

Q: Calculate the mass in grams of aluminum iodide (AlI3) when 23.40 g of aluminum (Al) reacted…

A: Given, 2Al + 3I2 →2AlI3 Mass of Al reacts = 23.40 g Mass of AlI3 = ? Note:  Atomic mass of aluminium…

Q: 42.161 * 1223 molecules of salt + 18.066 × 1023 molecules of sugar

A: 42.161 * 1223 molecules of salt + 18.066 × 1023 molecules of sugar  first we will convert molecules…

Q: What is the mass of 3.5 x 10^-3 molecules of copper (II) carbonate? Use correct significant figures…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: This is the chemical formula for hexanal: CH3CH24CHO. Calculate the mass percent of hydrogen in…

A: Molecular Formula of hexanal is C6H12O  And Molecular weight of hexanal is 100.1568 g/mol  Complete…

Q: If you mix 80.01 grams of sodium bicarbonate with 85.54 grams of hydrogen acetate how much carbon…

A:

Q: How many SiH4 Molecules are there in 9.81 moles of SiH4? You will need to divide your answer by…

A:

Q: How many ions are there in 0.042 mole of Ti(CO3)2 formula units?Place your answer in the box using…

A: 1 mole of Ti(CO3)2 can produce 3 mole ions (1 mole Ti4+ and 2 mole CO32-).

Q: 4.88×1020 H2O2H2O2 molecules Express your answer using three significant figures.    Calculate the…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: Please write the chemical reaction exactly as described below. The products are one mole of liquid…

A: A completely balanced chemical reaction is the one where the number of atoms of all the elements is…

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg, (Si₂O), (OH)₂ An…

A: Please find your solution below : A mole is defined as the amount of substance that contains…

Q: Be sure to answer all parts. Potassium is the second most abundant metal in the human body.…

A:

Q: how, many grams of phosphorous are contained in 3.07 x 1027 atoms of phosphorous? Enter your answer…

A: The concept of mole is a conducive way to express the amount of particles. This is a measurement…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.