What is the mass of phosphorus in a 45 kg person? .017 mass of P Incorrect

Q: A chemist measures the amount of oxygen gas produced during an experiment. He finds that 6.63 g of…

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Q: How many molecules of sulfuric acid are in 5.00 g of sulfuric acid? Write your answer with the…

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Q: A pure titanium cube has an edge length of 2.69 in . How many titanium atoms does it contain?…

A: Given- Density of titanium = 4.50 g /cm3 Edge length of pure titanium cube = 2.69 in To find- number…

Q: How many total atoms are there in seven dozen molecules of nitric acid, HNO3?

A: Answer to question no. 5 (as mentioned); 1 molecule of nitric acid HNO3 contains 5 atoms ( 1 H, 1N,…

Q: How many significant figures are in each number?

A: Given :- A)  0.1 s B)  108,700 km  To calculate :-  Number of significant figures in each number

Q: How many atoms are contained in 18.50 mL of water (d = 0.997 g/mL)?

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Q: 4. Make the following conversions and include an equation for each one: (a) 32 °C to °F (b) -8.6 °F…

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Q: A typical "lead" pencil is actually made from carbon. If the carbon in the pencil weighs 1.50 gram…

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

Q: What is the mass, in grams, of 1 mole of oxygen atoms?

A: Given :- number of moles of O = 1 mol  To calculate :- mass of 1 mol O atoms 1 mol contains 6.022 ×…

Q: mmonium perchlorate  NH4ClO4  is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

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Q: What is the mass in grams of 5.20 x 10 tin (Sn) atoms? x 10

A: Given : Number of atoms of Sn = 5.20 X 1012 atoms.

Q: A 0.7547 g sample of nicotine was analyzed and found to consist of 0.5588 g C, 0.06565 g H, and…

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Q: complete the percent by mass of each element in the compound to one decimal.  a. C12H22O11 b. K2CrO4…

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Q: Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her…

A: Molar mass of H2O is 18.02 g/mol. Molar mass of CoCl2 is 129.84 g/mol. Mass of water removed can be…

Q: The chemical formula for hydrogen chloride is HCI. A chemist determined by measurements that 0.0150…

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Q: -22 A copper atom has a mass of 1.06 x 10 g and a penny has a mass of 2.5 g. Use this information to…

A: To find out the mass of 1 mol of copper atom, check the avogadro number in 1 mol and use that to…

Q: Calculate the mass in grams of each sample 3.9×1022 SO2 molecules to g Express your answer using…

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Q: Part A How many significant figures are in each number? 0.1 s O 4 2 3 6 7 The number of significant…

A: Rules for identifying significant figures:  1. The digits except zero are always significant 2. The…

Q: a) How many grams of Ca, how many of C and how many of O are contained in 20g of calcium carbonate?…

A: The form of ratios that are used to calculate the quantities of reactants or products in a chemical…

Q: 1-mass of crucible and lid containing magnesium oxide 2- mass of empty crucible and lid from this…

A: To determine the mass of crucible + Lid + Magnesium oxide therefore from the given data table the…

Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Significant number: The non-zero digits are all significant. Among non-zero digits, there are large…

Q: 4. The volume of a piece of metal is 40.0 ml. Its density is 4.00 g/ml. What is its mass? a) 160 g…

A: Given density of metal = 4 g/ml  Volume = 40 ml

Q: Calculate the mass percent composition of each of the following Part A. 6.00 g of Si and 5.55 g of O…

A: Mass percentage can be calculated using the following formula: mass percent=masstotal mass×100

Q: How many atoms are contained in 4.1 g of carbon? How can you round this answer to 2 significant…

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of carbon atoms weigh 12 g.

Q: sample of water has 2.15x1024 molecules. What is the mass of the sample?

A: Molecular weight of water = 18 g/ mol 1mol of any substance contain 6.023× 1023  number of…

Q: How many grams of gold (Au)are there in 88.93 moles of Au? Be sure your answer has the correct…

A: When the moles of the substance are given, it has to be calculated by knowing the molar mass of that…

Q: Given the data below, calculate the mass of copper in the original sample. Mass of original sample…

A: In the given data,  Mass of copper in paper cup on filtration paper = 3.5406 g This mass includes…

Q: the mole is a common unit of measurement in chemistry you mat not be faniliar with mikes but one of…

A: Given : Mass of water i.e H2O = 290 g And mass of 1 mole of water = 18 g

Q: If you have 52% silicon dioxide in a 12.09 g sample, what mass of silicon dioxide do you have?   Am…

A: Given, Mass % = 52%  Mass of sample = 12.09 g  Mass of SiO2 = ?

Q: A  penny  weighs  2.507g  and  is  made  of  an alloy which  is  97.6%  zinc  and  2.4%  copper.…

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Q: How many grams of gold (Au)are there in 44.64 moles of Au? Be sure your answer has the correct…

A: Given information: Number of moles of gold (Au) = Use the molar mass of gold to calculate the mass…

Q: (The formula in this problem may not be a real molecule.) How many grams of hydrogen atoms are…

A: Given : moles of carbon = 47 mole

Q: A typical "lcad" pencil is actually made from carbon. If the carbon in the pencil weighs 1.50 gram…

A: Number of moles of a chemical compound is used to measure the amount of compound in the given…

Q: In the number 723.4, which digit is estimated? 02 0 3 01 4

A: The given number is = 723.4This number contains a decimal place.

Q: Question 1/1 Is a beaker a common laboratory apparatus? Choose an answer Hint Yes No

A: Beaker is a small container with flat bottom and a small opening at the top for pouring the liquid.

Q: What is the mass percent of phosphorus in P5O2?

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Q: The following prompt will be used to answer the first six questions. An experiment was performed to…

A: Given :

Q: b. U.00004042 fng 4.042 x 10-5 mg Which sample of element is heavier? Show appropriate calculations…

A: Given: The moles of N2 = 2 moles. The moles of Fe = 1 mol. The moles of F2  = 1.5 moles.

Q: Calculate the number of oxygen atoms in a 150.0 g sample of scheelite (CaWO4). Be sure your answer…

A: Number of Oxygen atom in 150g CaWO4 can be calculated as follows

Q: 14.255 g of a compound with the molecular formula C5H4N4 contains ______ carbon atoms. Report your…

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

Q: Liquid octane (CH, (CH₂) CH₂) will react with gaseous oxygen (0.) to produce gaseous carbon dioxide…

A: We know there is a fixed proportion between reactants to react and give the product . Also number of…

Q: The mole is a unit for counting. O False O True

A: One mole of a substance is equal to 6.022×10^23 of that substance present in  ( atoms, molecules, or…

Q: -23 An oxygen atom has a mass of 2.66 × 10 g and a glass of water has a mass of 0.050 kg. Use this…

A: Given mass of an oxygen atom = 2.66 × 10–23 g  And, mas of the glass water = 0.050 kg

Q: How many atoms are there in each of the following substances? 1.88 g Bi Express your answer using…

A: Calculate number of atoms in each element given--

Q: Part D 1.5630 x 1011 n m O 1 2 O 3 O 4 O 7 O 5 O 6 Tho numho of significant fig

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Q: Calculate the mass in grams of each sample 4.8×1025 O3 molecules to g Express your answer using two…

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Q: What is the mass, in grams, of each of the following? I.) 2.1×10−3 mol Sb Express your answer…

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".