A 55-kg woman has 483.42 grams of hemoglobin (molar mass = 64,456 g/mol) in her blood. How many hemoglobin molecules is this

Q: If 30.0 mL of 0.150 M CaCl2 is added to 15.0 mL of 0.100 M AgNO3, what is the mass in grams of AgCl…

A: Here we are required to find the mass of AgCl precipitate formed

Q: In the lab, a student makes a solution of CaCl 2 by dissolving 9.0 grams of solid in 425 mL of…

A: We have given that  Mass of CaCl2 = 9 gram  Volume of solution = 425ml = 0.425L  We know that…

Q: What is the mass in grams of 0.375 mole diatomic chlorine?     13.3 g     0.0134 g     2.26 x…

A: Moles of component is defined as ratio of the given mass to the molar mass. The relation for the…

Q: What mass of carbon dioxide can be made by reacting 1.56 grams of sodium bicarbonate with 0.687…

A: In order to calculate the mass of carbon dioxide we have to determine the limiting reagent. By…

Q: What volume of 0.204 M NaOH, in milliliters, contains 35.0 g of NaOH? Volume = mL

A: NaOH has a molar mass of 39.997 g/mol. This means that one mole of NaOH has a mass of 39.997 g.…

Q: If the density of ocean water at a depth of 1.00 x 104 m is 1.071 g/mL and if 21.0 g of water at…

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Q: In this quantity of gold? [4.5 9. 64,456 g/mol) in A 55kg woman has 7.5 x 10-3 mol of hemoglobin…

A: The given data contains,  =7.5 ×10-3According to mole concept,1 mole of compound contains 6.022…

Q: How would the following errors affect the empirical formula for the compound? That is, will these…

A: The empirical formula is the simplest ratio of different elements present in a compound. The ratio…

Q: What is the mass in grams of 2.68 x 1024 molecules of NBr5?

A: Given, the number of molecules of NBr5 =2.68×1024 moleculeswe are asked to calculate the mass of…

Q: How many grams of rhodium are in a 157.9-gram sample of RhCl 3? The molar mass of RhCl 3 is 209.26…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: The formula of aspirin is C9H8O4 what number of molecules of acetylsalicylic acid are in a 500mg…

A:

Q: What volume of 0.135 M NaOH, in milliliters, contains 31.0 g of NaOH?

A:

Q: What volume of 0.220 M NaOH, in milliliters, contains 45.0 g of NaOH? Volume mL %3D

A:

Q: What mass (in kg) does 4.41 moles of copper have?     0.784 kg     0.444 kg     0.280 kg…

A: Given -  No of moles =4.41 moles  Molecular mass of  copper (M) = 63.546  g / mol No of moles = 4.41…

Q: oluene 1C7H82 weighs 5.0 g and benzene weighs 225 g in a solution with a density of 0.876 g/mL. The…

A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution.

Q: What is the weight, in grams, of 1 quart of a mixture of equal parts of alcohol (sp.gr. 0.812) and…

A: Given : Specific gravity of alcohol = 0.812 Specific gravity of glycerin = 1.25

Q: The density of concentrated nitric acid is 1.42 g/mL, and its concentration is 71.0 % HNO3 by mass.…

A: In the given question we have to calculate the volume of stock Solution i.e concentrated HNO3 to…

Q: One of the challenges astronauts face is in space travel is the build-up of carbon dioxide in their…

A:

Q: What mass in grams (g) of Li3PO4  (MM=115.97 g/mol) is needed to prepare 300. mL of a solution…

A: Given: Lithium ion concentration = 0.148 M MM=115.97 g/mol Volume of solution = 300 mL

Q: What is the mass of 1.82 mole C4H11O3 in grams

A: mass of 1.82 mole C4H11O3 in grams determined in step 2

Q: A chemical compound has a molar mass of 136.63 g/mol. How much would 2.46x10^22 molecules of this…

A:

Q: TCDD, also called dioxin (C12H4Cl4O2, molar mass 322.0 g/mol), is a potent poison. The average…

A:

Q: If an atomic mass unit equals 1.66 × 10−24 g, what is the mass in grams of 5.00 × 1022 formula units…

A:

Q: Aspirin can be prepared from salicylic acid (C7H6O3), which has a molar mass of 138.12 g/mol, and…

A:

Q: What is the mass percentage of KBr in a 72.4 g solution with 2.65 g of KBr ? B) 1.68% A) 72.4% C)…

A: Hi, Since you have posted multiple questions, we will solve first one for you as per our guideline.…

Q: I just read the definition of the Colligative Properties​, but could you explain use the…

A: Colligative property depends only on temperature.

Q: 3.45 mol of LiCl in 3.53 L of solution Express the molarity in moles per liter to three significant…

A: Given  (a)  Number of mole of LiCl = 3.45 mole        Volume = 3.53 Liter        Molarity = ?  (b)…

Q: 6. While investigating mole ratios, a group of students collected data for the following chemical…

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

Q: A 52-kg woman has 7.2 × 10⁻³ mol of hemoglobin (molar mass = 64456 g/mol ) in her blood. How many…

A: Given mole of hemoglobin = 7.2 × 10⁻³

Q: Calculate the molarity of a solution prepared by dissolving 12.50 grams of NaNO3 in 250. mL of…

A: Molarity is defined as the moles of solute present in one liter of solution.

Q: What is the concentration (M) of a NaCl solution prepared by dissolving 9.3 g of NaCl in sufficient…

A: Given that  Mass of NaCl = 9.3g  Volume of solution = 350ml

Q: What is the mass in grams of 6.56 x 1022 molecules of lactic acid (C3H6O3), the compound responsible…

A: 1- First we need to calculate the moles of lactic acid :  Moles of lactic acid = [ number of…

Q: What is the molarity of a solution of NaOH if you dissolved 30.0 g into 500. mL of water?

A:

Q: Express your answers to three significant figures.    333 mg naproxen sodium =______C14H13O3Na…

A:

Q: What is the mass (in grams) of 9.39 x 1024 molecules of methanol (CH4O)? First determine the molar…

A:

Q: A solution is prepared by dissolving 125 g sucrose (C12H22O11) in 135 g H2O.  Calculate the mass %…

A: Given; The mass of the solute is 125 g. The mass of water is 135 g.

Q: What volume (in mL) of a soft drink that is 10.5% sucrose (C12H22O11) by mass contains 78.5 g of…

A:

Q: One of the ionic compounds in sports drinks is potassium dihydrogen phosphate (KH2PO4). The label on…

A: The question is based on the concept of solutions.   molarity is a method of expressing…

Q: You dilute the river water 10 times for the analysis of SDS concentration. The instrument measures…

A:

Q: A bottle of Ibuprofen (C 13 H 18 O 2 ) contains 1.204 * 10 ^ 24 molecules. How many grams of…

A: Interpretation -  To determine the grams of ibuprofen are contained in the bottle when a bottle of…

Q: A 55-kg woman has 0.0085 mol of hemoglobin (molar mass = 64,456 g/mol) in her blood.…

A: The moles of hemoglobin present in the blood of 55-kg is 0.0085. We know that the moles of…

Q: One molecule of an unknown compound is found to have a mass of  4.61 x 10-22 g. What is the molar…

A:

Q: Commercial grade fuming nitric acid contains 90% HNO3 by mass with its density of 1.50 g/mL Its…

A:

Q: The average concentration of dissolved gold in earth's oceans is  5.8 x 10^−9 g/L. of ocean…

A: 6380 μgram of gold are in 1.1x103 m3  of ocean water

Q: Fluoridation is the process of adding fluorine compounds to the drinking water. Fluoridated water…

A: The concentration term 1 ppm means that there is 1 mg present in 1 L solution. 1 gallon =3.78541 L…

Q: How many sugar molecules are present in 300 mL of a 2.0 M solution? (The formula for sugar is…

A: Molarity = 2.0 M  Volume = 300 ml = 0.3 litres Number of moles = molarity x volume(litres)

Q: What is the mass, in kg, of 1.25x1024 molecules of BF3?

A:

Q: What mass of carbon dioxide would you need to have 0.65 moles of CO2?

A: Given : Moles of CO2 = 0.65 mol

Q: A chemical plant uses electrical energy to decompose aqueous solutions of NaClNaCl to give Cl2Cl2,…

A: A chemical plant uses electrical energy to decompose aqueous solutions of NaCl to give Cl2, H2, and…

Q: A high-performance heater that burns propane, C3H8(g), is adjusted so that 100.0 g of O2(g) enters…

A: The number of moles of oxygen (O2) present (nO) in 100.0 g of oxygen gas is calculated using…

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.