bleach, [OH ]= 2.9 × 10–3 M Express your answer using two significant figures. ΑΣφ a Xb

Q: A chemistry student weighs out 0.139 g of lactic acid (HC,H,O,) into a 250. mL volumetric flask and…

A: Mass of lactic acid = 0.139 g Volume of solution = 250 mL or 0.250 L Molar mass of lactic acid =…

Q: 1. Calculate the number of nanograms in 1.545x10 Megagrams. 2. Calculate the number of Teraliters in…

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

Q: Express each result to the proper number of significant figures 5698 x 0.0439 0.005493/(28.000 x…

A: Significant figures are the digits having a meaning in a given number.The number of decimal places…

Q: A glass vessel weighed 20.2376g when empty and 20.3102g when filled to an etched mark with water at…

A: A glass vessel weighed 20.2376g when empty and 20.3102g when filled to an etched mark with water at…

Q: How many significant figures should the answer for the following calculation have? (433.621 - 333.9)…

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Q: Part B 0.16 M NAC2H3O2 Express your answer to two decimal places. ? pH = Part C 0.11 M NaCl Express…

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Q: A chemistry student weighs out 0.0353 g of acetic acid (HCH,CO,) into a 250. mL volumetric flask and…

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Q: A chemistry student weighs out 0.150g of phosphoric acid H3PO4 , a triprotic acid, into a…

A: The 250 ml of solution is equal to 0.250 L. The concentration of phosphoric solution (M) is…

Q: A chemistry student weighs out 0.166 g of chloroacetic acid (HCH, CICO,) into a 250. mL volumetric…

A: Chloric acetic acid reacts with sodium hydroxide to form sodium chloroacetate and water. The…

Q: A chemist makes 300. mL of potassium dichromate (K,Cr,0,) working solution by adding distilled water…

A: Answer:- This question is answered by using the simple concept of dilution of concentrated solution.…

Q: A student weighed a wet 10-mL graduated cylinder. The cylinder contained at least 0.5 mL of water…

A: Given that : A student weighed a wet 10-mL graduated cylinder. The cylinder contained at least 0.5…

Q: Convert 9.37×10−3 m9.37×10−3 m to the equivalent length in nanometers.

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Q: What is 1/λ (m-1) λ (m) = 4.10288 X 10-7

A: Wavelengthλ is the distance travelled by one comlete wave.It is measured by the distance between two…

Q: An alcohol solution was prepared by adding enough water to 35. 0 mL of the alcohol to make a total…

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Q: The normal level of urea nitrogen in adults is 7-18 mg/dLmg/dL. What is this range in ppmppm?…

A: Given : The normal level of urea nitrogen in adults is 7-18 mg/dL. What is this range in ppm?

Q: Complete each row of the table below by filling in the missing prefix or missing exponent. J 1 n J…

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Q: • Part A - Determining the Number of Significant Figures in a Measurement An object is determined to…

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Q: perform the following calculation, reporting your answer to the correct number of significant…

A: Rules for significant figure All non zero integer are significant Exact number have unlimited…

Q: Determine the kind of relationship that exists between salinity and chlorinity • Equation 3.4…

A: The equation is, Salinity = 1.80655 × Chlorinity So, Salinity/chlorinity = 1.80655

Q: A chemist makes 570.mL of zinc nitrate ZnNO32 working solution by adding distilled water to…

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Q: mol A chemist makes 760. mL of potassium permanganate (KMNO,) working solution by adding distilled…

A: The given problem relates to stock dilution, so we can use the below relation to calculate the…

Q: A chemistry student weighs out 0.178 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A:

Q: perform the following calculation, reporting your answer to the correct number of significant…

A: Significant figures of a number are  necessary to indicate the quantity of something. It is also…

Q: Assume household vinegar contains 5% acetic acid by weight and that the density of vinegar is the…

A: Given :  Volume of household vinegar = 404 ml  Density of vinegar = 1 gm/ml  Weight % of acetic acid…

Q: The output of a plant is 4335 pounds of ball bearings per work-week (a work week = five days). If…

A: Given: Mass of each ball bearing = 0.0113 g Total mass of ball bearings formed in 5 days = 4335…

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, have the general formula…

A: We have to calculate the % by mass of C .

Q: What answer should be reported, with the correct number of significant figures, for the following…

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Q: You are to give ampicillin, with a recommended dose of 35 mg/kgmg/kg , to a child with a mass of 21…

A: Each drug has an specific concentration range where its effect is most useful or most safe. The…

Q: [OH-] = 1.0 x 10-7 Express the concentration to two significant figures and include the appropriate…

A: Given-> [OH^-] = 1.0 × 10^-7 M   If [H3O^+] is 1.0 × 10^-7 M => then it is neutral .

Q: 5) significant figures should be retained in the result of the following calculation: (354.0 +…

A: Given: 354.0+21.01×107(0.012+2.30)×102

Q: Calculate the volume (I x w x H ) of this cube to the correct number of digits. Block of wood Height…

A: Length of the cube = 1.2 cm Width of the cube  = 1 cm Height of the cube  = 1 cm

Q: How many milliliters would you inject into a 175 pound patient that needs 2.50 grains of medication…

A: Given : Mass of patient = 175 lbs Dose of medicine = 2.50 grains/25.00 Kg body weight = 0.1…

Q: A chemistry student weighs out 0.178 g of phosphoric acid (H,PO), a triprotic acid, into a 250. mL…

A:

Q: The concentration of carbon monoxide (CO), a common air pollutant, is found in a room to be 5.7 x…

A: The volume of the room is calculated as following,

Q: An analytical chemist weighs out 0.141 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given, Mass of unknown diprotic acid = 0.141 g. Volume of flask = 250 mL Molarity of NaOH = 0.1100 M…

Q: Give the name and symbol of the prefixes used with SI units to indicate multiplication by the…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: A student pipetted 10 mL of a sample solution into a 250 mL volumetric flask and diluted it to the…

A: At first 10 mL of original solution is taken in 250 mL flask and the rest 240 mL of water is added…

Q: What is the volume in milliliters of 7.22 grams of acetone? Acetone (fingernail-polish remover) has…

A:

Q: Conversion Factors in Calculations Report Sheet - Lab 2 B. Significant Figures in Calculations B.1…

A: Significant figures can be defined as  the number of digits in a value that tell us about the…

Q: A chemistry student weighs out 0.181 g of phosphoric acid (H,PO), a triprotic acid, into a 250. mL…

A: First of all,we calculate the Molarity of phosphoric acid. Molarity is the number of moles of solute…

Q: Perform the following calculations to the correct number significant figures. (23.4813 x 2.52) +…

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Q: A chemist makes 980. mL of copper(II) fluoride (CuF,) working solution by adding distilled water to…

A: The given information is: Concentration of stock solution = 2.45 mM Converting the value of stock…

Q: The "normal" concentration of lead in blood is 0.40 parts per million (meaning, for example, 0.40 g…

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Q: 10Br (ag) + 2MNO, (ag) + 16H' (aq)2Mn" (aq) + 8H20(1) + 5Br2 (1) Express your answer using two…

A: An equilibrium constant (K) of a chemical reaction is defined as the constant value of the reaction…

Q: Convert 7.57×10−3 m7.57×10−3 m to the equivalent length in nanometers

A: Given,7.57×10−3

Q: What answer should be reported with the correct number of significant figures, for the following…

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Q: In some polluted city air the amount of lead was measured at 3.1 x 10^-6 g/m^3. What is the amount…

A: Cubic meter and cubic centimeter are some common units of volume. Similarly, grams and kilograms are…

Q: You have a patient who weighs 95 pounds. The dosage of a drug is 1.5 mg drug per kg of body mass.…

A: First we need to understand which unit convention are used in the question and which we want to use…

Q: A chemistry student weighs out 0.129 g of lactic acid (HC,H,0,) into a 250. mL volumetric flask and…

A: Since Lactic acid is a weak monoprotic acid  Hence it will react with NaOH as  NaOH + HC3H5O3…

Q: A chemistry student weighs out 0.0258 g of hypochlorous acid (HCIO) into a 250. mL volumetric flask…

A: Given that: Mass of HClO = 0.0258g  Molar mass of HClO = 52.46g/mol Moles of HClO =…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.