If our alloy has a composition of 90% Sn and has a temperature of 100C, determine: a) What constituents are present? b) What are the compositions of these constituents? c) What are the proportions of these constituents in the alloy?
Q: The density of a substance is 3.596 g/ml and has a weight of 32g. What is the volume?
A: Volume is defined as the total space occupied by a substance. Density can be defined as the…
Q: How many grams is one mole of potassium chloride KCI?
A: Moles : unit of concentration Mole concept is used to convert mass and number of particles. 1 mole…
Q: How many moles of argon are in 40.1 g of argon?
A: In this question, we have to find the number of moles of argon in 40.1 gm of argon using the formula…
Q: IDENTIFY THE FOLLOWING PARTS - A B C D E F G H I J K
A: The given diagram is a 3D model of a eukaryotic cell as we can see the membrane-bound organelles…
Q: Use the following balanced equation for problems 1-5. Molar masses are given below. 2 As + 3 H2 2…
A: Balanced chemical equation: This is an equation representing a chemical reaction in which the total…
Q: What is 80.1ml in liquid volume?
A: The volume of an object is defined as the 3-D (three-dimensional space) present within a closed…
Q: Which is the highest boiling point of 1-Octene or 1-nonene? Why?
A: Boiling points of alkenes depends on more molecular mass (chain length). The more intermolecular…
Q: Magnesium atoms lose two electrons when they react. Write the symbol of the ion that is formed. Is…
A: Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray solid…
Q: What does the formula DPD = SF - TP mean?
A: The above mentioned question is related to cell membrane. It is asking the meaning of mentioned…
Q: What is the empirical formula for a compound that is 26.56% potassium, 35.41% chromium, and 38.03%…
A: A compound's empirical formula communicates a ratio between the numbers of atoms of various elements…
Q: Why CoNiCrMo alloy is used in application that require long service life without fracture?
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: What is the mass in grams of 6.022 * 1023 O atoms of mass 16.00 amu?
A: The mole concept is a convenient method of expressing the amount of a substance. Any measurement can…
Q: Which of the following is not an equivalent to ppm? a.mg/L b.ug/g c.g/ton d.uL/mL x 106
A: The abbreviation of ppm is ‘parts per million'. It is also expressed as milligrams per litre (mg/L).…
Q: What is the mass in grams of 30.50 moles of KBr
A: The molar mass is defined as " It is the addition of all the atomic mass of atoms present in the…
Q: How many millilitres of Morphine Sulfate 15 mg / mL should the patient get if he needs to take 60 mg…
A: According to the formula, Required Dose = D/H ×V where, D= desired dose; H=amount on hand; V=…
Q: When 0.5 mol of a certain ionic substance is dissolved in 1.0 kg of water, the freezing point of the…
A: The physical properties (freezing and boiling point) of a solvent caries n addition of solute. The…
Q: Elemental gold is being recovered by electrodeposition from a solution with tiny amounts of Au(III).…
A: Gold is recovered by many process like cynide process etc.
Q: Another major use of bismuth has been as an ingredient in low-melting metal alloys, such as those…
A: Bismuth has the atomic number 83 and is the heaviest among all the elements in 5A. In the group 5A…
Q: How many moles of tungsten(VI) oxide and hydrogen were required to produce the 5.00 g of tungsten?
A: Stoichiometry is a section of chemistry that involves using relationships between reactants and/or…
Q: Which of the following correctly identifies the number of each element involved in the chemical…
A: The chemical formulas of a given molecule represent the simple ratios or the number of molecules of…
Q: 5. A 0.8720 g sample consisting solely of sodium bromide and potassium bromide yields 1.505 g of…
A: NaBr is sodium bromide KBr is potassium bromide AgBr is silver bromide Molecular weight, Na=23…
Q: How many H2O particles were produced by creating the following structure? * R H R R H-N-C,-c-…
A: Amino acids are monomers of protein they are linked with each other by forming peptide…
Q: If a 1.20 L of strawberry wine is 10.5% alcohol by volume, how many ml of the solution is ethanol?
A: Wine is an alcoholic beverage produced from honey, fruits like grapes, pineapple, strawberry, etc.…
Q: How many grams are in 0.250 moles of lithium carbonate ? a) 12.225 b) 18.47 c) 18.5 d) 16.5
A: The molecular formulae of lithium carbonate are Li2CO3.
Q: Why does the water on glass (left) look flat, while the water on the wax paper (right) looks…
A: Water is a unique solvent because of its unique physical and chemical properties.
Q: How many milliliters of 0.1M aqueous Sodium Hydroxide solution can be prepared from 10 gm ?of Sodium…
A: The molarity (M) is the amount of a substance dissolved in a certain volume of a solution. It is…
Q: How many grams of CuSO4 would you use to make 1 L of an 8 g/L CuSO4 solution?
A: Given Values: Volume = 1 L Concentration of CuSO4 = 8 gL
Q: What is Alu element ?
A: An Alu element is a transposable element, also known as a “jumping gene.” Transposable elements are…
Q: determine the density of a metal that has a mass of 2.17g and a volume of 0.35 cm^3
A: The unit of density is gm/cm3 .
Q: What is the equivalent of 7 ppb in µg sol/L?
A: ppb means parts per billion.
Q: What is sievert?
A: Radiation It is the emission or transmission of energy in the form of waves or particles through…
Q: Which of the following is incorrect about waxes?
A: The question is all about the wax that is used in our daily needs like in cosmetics, candles, car…
Q: If 5.0 g of calcium hydroxide are needed, how many moles of magnesium hydroxide would be produced?…
A: 1.27 Moles of Mg(OH)2 are produced from 1 mole of Ca(OH)2.
Q: given a stock solution of 10% dextrose, how would you make 5 mL of a 0.9% dextrose solution? find mL…
A: Given Values: The concentration of the stock solution of dextrose = 10% Concentration of the final…
Q: What is ethidium bromide ?
A: Agarose gel electrophoresis is commonly used for the separation of nucleic acid molecules. It…
Q: Why do you think compounds containing the heavy metal lead are poisonous?
A: Heavy metals are chemical elements that have high density and very toxic or poisonous even at their…
Q: If 150ml of polyethylene glycol 400 weighs 74.1g, what is the specific gravity?
A: The division of density of the substance and standard density is called specific gravity. It is also…
Q: How would you convert the density of Titanium from kg/m3 to g/ml? Density of Titanium = 4507 kg/m3
A: Density of Titanium =4507 kg/m3 The conversion of kilogram per cubic meter to gram per milliliter.…
Q: An IV of 650cc of 5% dextrose contains how many grams of 5% dextrose?
A: Dextrose is defined as a type of simple sugar molecule that has wide variety of uses such as…
Q: How many H2O particles were produced by creating the following structure? R H R R -N-Ç, H-N-C,- H H…
A: Extention of a polypeptide chain is a typical dehydration reaction where OH from carboxyl group and…
Q: Give the name of and symbol for an element with this number of valence electrons. a) 2 b) 6 c) 8
A: Valence electrons are the electrons which are present at the outermost shell. These electrons take…
Q: What does “1 Millimolar” (1mM) mean
A: Milli is a suffix in measurement meaning 1/1000 or 10^-3.
Q: If the dehydration reaction of an alcohol is successful, what changes would be seen in the IR…
A: Biochemistry is a branch of biology that deals with the study of chemical processes within living…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Given: 2KI +Pb(NO3)2 --> PbI2 + 2KNO3. How many grams of lead (II) iodide are produced if 0.250 moles of potassium iodide react completely? Group of answer choices 0.125 g 0.250 g 57.6 g 115 gThe Ksp values of silver chromate Ag2CrO4 and silver iodate Ag(IO3) are given below. Ag2CrO4 Ag(IO3) Ksp 1.12 x 10-12 3.17 x 10-8 Based on these Ksp values, which of the following is true? Choose one option only. Options: a. In the solution consisting of 1.00 x10-4 M Ag+ and 5.00 x10-5 M CrO42-, Ag2CrO4 precipitate will form. b. In the solution consisting of 1.0 x10-4 M Ag+ and 1.0 x10-4 M IO3-, Ag(IO3) precipitate will form. c. In pure water, the solubility of Ag2CrO4 is lower than the solubility of Ag(IO3). d. In the solution consisting of 0.200 M CrO42- and 0.200 M IO3-, Ag2(CrO4) will precipitate first if we add Ag+ ions gradually into the above mixture.A polymer is made with the following fractional distribution. 0.5 20 Wi Mi (kg/mol) 0.4 40 0.1 30 a) Calculate M₁, Mw, and PI for this polymer.
- The main constituents in vinegar are water and ethanoic acid (CH3COOH). In order to determine the concentration of acid in homemade vinegar, a student titrated 25 cm3 of 001 M NaOH against the vinegar. The equation for the reaction is: CH3COOH(aq) + NaOH(aq) ® CH3COONa(aq) + H2O(l) The following titration results were obtained: Burette readings (cm3) Rough 1 2 Final burette reading 20.10 38.90 31.40 Initial burette reading 0.10 20.00 12.50 Volume of vinegar used 20.00 18.90 18.90 (a) What volume of vinegar should be used in the calculation? (b) What is the mole ratio of NaOH:CH3COOH? (c) Calculate the number of moles of alkali in 25 cm3 of NaOH solution used. (d) How many moles of acid were used in the titration? (e) Calculate the…6 x 10⁻⁵¹ = (0.15 M)² [S²⁻] [S²⁻] = (6 x 10⁻⁵¹) / (0.15 M)² Calculating, we find the minimum concentration of sulfide ion required: [S²⁻] ≈ 2.7 x 10⁻⁴⁹ M. check it calcution is writeHow many moles of EDTA (C10H16N2O3) do you have in 785µl of a 74MM EDTA solution (Mr(C10H16N203) = 292.24)? Consider all digits of your Givens significant. Round results to the appropriate number of Significant Digits. The number of moles is mmol.
- How many grams of NaOH would you need to make 3,982 mL of a 3 M NAOH solution (m.w. = 40.00 g/mol)? Report your answer in the requested units to the nearest 2 decimal places (Example "40.02"). Do not report the units in your answer; enter the numbers only. It is recommended that you do not round between calculation steps.You are presented with the following prescription: Rx Drug Y 175 mg Witepsol H15 q.s. Supply 6 suppositories (using 3 g nominal moulds) When using Witepsol H15, moulds will hold 1.06 times their nominal weight. The displacement value of Drug Y in Witepsol H15 is 1.1. Calculate the mass of Witepsol H15 required to prepare this product. Give your answer to two decimal places.Four lab groups completed the experiment listed in the lab diluting lul of FCF dye into 1ml of water. The A625 values are listed below. For brilliant blue FCF, ɛ =97000 M-1cm–1 MW = 792.8 g/mol %3D Group # A625 % solution (in original stock sample) Percent ror (True value of Stock=0.2%) 1 0.244 0.199 0.5 0.209 0.170 15 3 0.306 0.250 25 4 0.187 0.153 0.235 a. Which group was more accurate? b. What are possible reasons group 3 had a much higher Absorbance than the others? c. What are possible reasons group 4 had a much lower Absorbance than the others?
- For the following reaction, 4.91 grams of water are mixed with excess chlorine gas. The reaction yields 12.5 grams of hydrochloric acid.chlorine (g) + water (l) hydrochloric acid (aq) + chloric acid (HClO3) (aq) What is the theoretical yield of hydrochloric acid ? grams What is the percent yield of hydrochloric acid ? %You have just used up the last of a 1.2 % m/m solution of agarose in water. You require another 100mls. How many grams of Agarose do you require? Note 1ml of water=1g What is the % w/v of a 100ml solution containing 5g of NaCl?Solution A is 20 degrees celsius, Solution B is 80 degrees celsius (both are the same kind of solution). The goal is to make a 50 degree celsius solution; How much of solution A do you need (starting with 100g of solution B)? (cp=4.184 J/g C)