how many nanomoles is a 83.9 pg sample of platinum?

Q: which of these would most likely be an gram equivalent mass of copper?

A: 1 Faraday is defined as the amount of electric charge responsible for deposite or dissolve 1 gram…

Q: What is the mass in grams of 0.485 moles of barium (Ba)? Enter your answer in decimal form with…

A:

Q: 2.10x10^23 molecules of water contains how many grams of water?

A:

Q: How many moles of water are in 1.00 L of water, whose density is1.00 g/mL?

A:

Q: Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams,…

A: The volume of a given liquid is defined as the amount of the space occupied by the liquid that fully…

Q: e mass in kC

A:

Q: What is the maximum mass of pure lead that could be extracted from 195. g of galena, a lead ore with…

A: Formula of galena = PbS Mass of Galena = 195.0 g Molar mass of Galena = 239.3 g/mol Mass of pure…

Q: Consider a 25.09 g cube of cadmium metal, an element which forms some of the most toxic salts known,…

A: The length of one side of cube = 1.45 cm

Q: What is the volume of a piece of silver metal that has a mass of 143 g?

A:

Q: 9.87 g + 0.520 g g 9.607 g – 1.00 g %3D g 7.77 g - 1.4 g %3D g

A: In addition and subtraction,  the minimum significant figures in final answer is same as fewest…

Q: Calculate the volume in in3 of a 5.0 kg bar of copper.

A: The relation between volume and mass is given as: Density = mass/volume So, volume = mass/density…

Q: What is the standard SI unit for mass?

A: Mass is a measure of the amount of matter in a substance. Mass measures the amount of matter…

Q: y grams of A

A:

Q: 2 g aluminum sulfate in 200 g of water . density of aluminum sulfate ; density of h20

A: Density can be determined by using the following formula: Density = mass/volume

Q: (d) 44.3 kg cobalt(I) nitrate i ! mol cobalt(lI) nitrate

A:

Q: A chemist has a 19.50g sample of drinking alcohol (ethyl alcohol). what is the volume ogf the…

A: The relationship between mass and volume is given below.

Q: How many moles of S are in 23.8 g of C6H10S? Express the number of moles to three significant…

A:

Q: initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203 g mass of water…

A: Mass of water = 10 g Volume of water = 10 mL Density of water = ?

Q: What is the mass of one atom of gold (Au)? How would you write this answer to significant figures?…

A: Atomic mass of gold is 196.96655 g/mol.

Q: How many grams F in 650.1 g Br2F6? Put the answer in the box in regular (non-scientilic) notation.…

A:

Q: How many mL of paraffin wax would it take to make a candle of this size, with a volume of 11.0 in³ ?

A: Given: Volume = 11.0 in3.

Q: how many grams of Mn(CO3)2 are in 2.05x1023

A: Molecular mass of a substance which may be an element or a compound can be defined as the sum total…

Q: e mass,

A:

Q: Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams,…

A: Density is the ratio of mass and volume.

Q: Gold can be hammered into extremely thin sheets calledgold leaf. An architect wants to cover a 100…

A:

Q: The density of water is 1.00 g/mL at 4 degrees celsius. How many water molecules are present in…

A: The formula for density calculation is,

Q: What is the mass in grams of 9.35 x 1024 molecules of CO2 ? Please express in decimal form, not…

A: Given- Molecules of CO2 = 9.35 x 1024 To find - Mass of CO2 in grams

Q: How many moles of Ca are there in 913 grams? Answer in decimal notation, without units, to 3…

A: • The values provided in the question are:-    i) Mass of Calcium = 913 g  ii) Molar mass of…

Q: Which weighs more, 5.00 g or 0.0225 mol of acetaminophen 1C8H9NO22?

A: Given weight = 5.00 g Moles of Acetaminophen = 0.0225 mol. The molecular weight of Acetaminophen =…

Q: What is the mass of 1.86x10^24 molecules of nitrogen

A: first find the no. of moles of N2  then find mass by multiply by its molar mass

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: 2.3E23 molecules of sugar (CH120,) would weigh how many grams?

A: The moles are the unit of the substance and it is explained as 6.022×1023 atoms/molecules/ions. It…

Q: On average, a drop of water has a volume of 50 microliters. What is this volume in dekaliters ?

A: Units are measurements of particular value.  Measurement is determining how large or small a…

Q: In one experiment you reacted 45.7g of aluminum with 182.8g of iron (iii) oxide to produce aluminum…

A: The chemical equation can be written as: The chemical equation needs to be balanced so that it…

Q: What mass of copper(I) phosphate contains 3.20x1023 oxygen atoms? Provide your answer in decimal…

A: Chemical formula : Cu3(PO4)2  Given, Atoms of Oxygen = 3.20 x 1023 atoms. Molar mass  : 380.58 g/mol…

Q: Substance AB2 is 60% A by mass.  What is the percent A by mass for substance AB?  Justify your…

A: For given compound AB2, 60% by mass is A then obviously 40% is B. That is for 100g of given…

Q: What is the density of a sample of gold if 1.19x1023 atoms occupies 1.86 cm. Molar mass of the metal…

A: Density is defined as the ratio of mass to volume. The SI unit of density is kg/m3. One mole is the…

Q: If you have 152 g of glucose (C₆H₁₂O₆), how many moles are present? Use the correct number of…

A: Given: Mass of glucose (C₆H₁₂O₆) = 152 g Molar mass of glucose = 180.156 g/mol

Q: Calculate the number of gold atoms in a 150.0 g sample of gold(III) chloride (Au,Cl,). Be sure your…

A: Given-> Weight of Au2Cl6 = 150.0 gm

Q: 5) A student measures 10.5 mL of diethyl ether using a glass syringe. Given that the density of…

A: The question is based on the concept of physical chemistry. We have to calculate moles of ether…

Q: What is the maximum mass of pure titanium that could be extracted from 3.0 kg of ilmenite, a…

A: The molecular formula of ilmenite is = FeTiO3 The mass of ilmenite is = 3.0 kg The mass of titanium…

Q: Question attached

A: The weight of 136 washers and number of washers in 118 g should be calculated.

Q: y grams of i

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Q: how many grams are in 0.271 miles of NaCI?

A: Grams= 15.84 grams.

Q: The EPA limit for lead in bare soil for children’s play areas is 400 ppm by mass. A contractor is…

A: Parts per million or ppm is term used to express concentration. It is somewhat similar to weight…

Q: y grams o

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

Q: calcium, how many kilograms of calcium are there in a

A:

Q: 4.25 x 1024 atoms N converted to grams

A: We have given the atoms of nitrogen = 4.25 × 1024 atoms Avogadro's constant = 6.022 × 1023…

Q: How many moles are there in 1.0 g of the element Al? Your answer must contain the correct number of…

A: Moles can be expressed as the ratio of mass of the solute to the molar/atomic mass of solute. i.e.…

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".