The white blood cell concentration in normal blood is approximately 12,000 cells/cubic mm. How many white blood cells does a normal adult with 5.0 L of blood have? Express the answer in scientific notation.

Q: A chemist prepares a solution of barium chloride (BaCl,) by measuring out 15.3 g of barium chloride…

A: We have 15.3 g of barium chloride (BaCl2) which is dissolved in 50 mL of water.  First we have to…

Q: A chemist prepares a solution of mercury(II) iodide (HgI₂) by measuring out 2.56 mg of mercury(II)…

A: we have to calculate the concentration of HgI2 solution in mol/L

Q: A chemist prepares a solution of copper(II) sulfate (CuSO4) by measuring out 12. g of copper(II)…

A:

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: Given : Mass of water in swimming pool = 8.45 X 104 gallons  Mass percent of chlorine = 6.00 %  And…

Q: A chemist must prepare 750. mL of 1.00 M aqueous nickel(II) chloride (NiCl₂) working solution. He'll…

A:

Q: A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 6.0 g of potassium…

A: Given mass of Potassium Permangante = 6.0 g  Volume of water = 500 mL  We have to calculate the…

Q: Calculate the volume of NaOH  solution the student will need to add to reach the equivalence point

A: Given ;-  Mass of HClO = 0.0909 g  Volume of HClO solution = 250.mL  Molar concentration of NaOH…

Q: A chemist prepares a solution of nickel(II) chloride (NiCl,) by weighing out 78.0 g of nickel(II)…

A: Concentration is a definite amount of solute in a solvent .concentration is also the ratio of the…

Q: To measure the blood Ca2+ concentration of a patient’s sample, 5.00 mL of blood was diluted to a…

A: To solve this question we have to careful about units and how many times successive dilution was…

Q: The stockroom has provided you with a 1.60 M stock solution of NaCl. What volume of this stock…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: A chemist must prepare 775. mL of 715. mM aqueous barium chloride (BaCl₂) working solution. She'll…

A: Given:Molarity (M1) of BaCl2 stock solution = 0.955 MMolarity (M2) of BaCl2 diluted solution = 715…

Q: A chemist must dilute 44.5 mL of 443. mM aqueous copper(II) sulfate (CuSO4) solution until the…

A:

Q: mol aqueous L A chemist must prepare 650. mL of 4.00 M aqueous nickel(II) chloride (NiCl,) working…

A:

Q: A chemist must prepare 550. mL of 45.0 mM aqueous copper(II) sulfate (CuSO4) working solution. He'll…

A: When a concentrated solution is diluted then number of moles remains same only volume of solution…

Q: PART A: A solution of cough syrup contains 5.00% active ingredient by volume. If the total volume of…

A: Total volume of bottle = 74.0 mL active ingredients = 5.00%  So, mL of active ingredients = 74 x…

Q: A chemist prepares a solution of silver oxide (AgO) by weighing out 0.0208 mg of silver oxide into a…

A: From given data  mass of AgO = 0.0208 mg = 2.08 × 10-5 g volume of solution = 50 mL = 0.50 dL…

Q: chemistry student weighs out 0.0266 g of phosphoric acid (H,PO), a triprotic acid, into a 250. mL…

A: Given- Mass of phosphoric acid= 0.0266g Volume of volume flask =250 mL  Concentration of NaOH…

Q: A chemist must dilute  40.6mL  of  105.μM  aqueous silver(II) oxide  AgO  solution until the…

A: Given: Initial concentration (original solution), M1 = 105 μM The initial volume (original…

Q: 0.0710 moles of CH3CH2OH (ethanol) are dissolved in water to make a solution with a total volume of…

A:

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 2.3 x 10 umol of iron(II)…

A: Change micro mol to mili mol the volume in L. then divide it.

Q: A)  Calculate the molarity 12.21 mg KI in 107.6 mL of solution         Express your answer using…

A: Molarity of a solution is defined as the number of moles of solute to the total volume of solution.

Q: A chemist prepares a solution of silver perchlorate AgClO4 by measuring out 0.58kg of silver…

A: Mass of silver perchlorate=0.58 kg=580 g  Molar mass of silver perchlorate = 207.319 g/mol Moles =…

Q: A prescription requires an 0.67 mL injection of a 1:100 solution of a drug. The pharmacy only…

A:

Q: A chemistry student weighs out 0.146 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A:

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The values are given as follows:

Q: A chemist prepares a solution of nickel(II) chloride (NICI,) by measuring out 1.2x 10 jumol of…

A: Moles of NiCl2=1.2×102 μmol Volume=250 mL

Q: A chemist prepares solution of nickel(II) chloride (NiC1₂) by weighing out 202.7 g of nickel(II)…

A: Given: mass = 202.7 g

Q: A chemist prepares a solution of potassium permanganate (KMNO) by measuring out 26.3 µmol of…

A: The chemist has prepared a 400mL potassium permanganate solution in a flask.

Q: Naphthaline, C10H8, is dissolved in 110.0 g of water. The solution boils at 109.3°C. How many grams…

A:

Q: A chemist prepares a solution of sodium chloride (NaCl) by measuring out 67. µmol of sodium chloride…

A:

Q: A chemist prepares a solution of potassium iodide (KI) by measuring out 7.2x10^2 μmol of potassium…

A:

Q: A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of…

A: Part(a): Given that the mass of micropicnometer = 2.000 g Mass of micropicnometer + citric acid =…

Q: A chemistry student needs 15.0 g of heptane for an experiment. He has available 0.50 kg of a 44.3%…

A: Step 1: SolutionGiven, mass of solution available = 0.50 kg = 0.50 kg × ( 1000 g / 1 kg ) = 500…

Q: A prescription requires an 4.82 mL injection of a 1:100 solution of a drug. The pharmacy only…

A:

Q: IV (intravenous) solutions are mixtures of sugars, salts and other aqueous solutes fed directly to a…

A: Answer

Q: A chemist prepares a solution of barium chloride (BaCl₂) by measuring out 26.5 μmol of barium…

A: Given  BaCl2 measurement in a volumetric flask  is Number of moles = 26. 5 numol Volume   = 300.mL…

Q: Measurement and Matter Adding or subtracting and multiplying or dividing measurements 0/3 B A…

A: Information about the question

Q: A chemist needs to know the mass of a sample of CaCO3 to 3 significant digits. He puts the sample on…

A: The mass of CaCO3 sample = 00109.0 g          As the leading zero's are not significant and tailing…

Q: In 2014 (the last year for which I can find data), Utah County had a carbon monoxide (CO) average…

A: Please find your solution below : Carbon monoxide is a poisonous, colourless, tasteless and…

Q: In 2014 (the last year for which I can find data), Utah County had a carbon monoxide (CO) average…

A: Please find your solution below : Carbon monoxide is a colourless, tasteless and odourless gas…

Q: te the volume in mL of

A:

Q: aqueous solutes fed directly to a patient's veins. If an IV solution is 5.0% glucose by mass, how…

A: % by mass is a concentration term which is used to prepare solution of different concentration. The…

Q: A student prepares a 0.70 mM aqueous solution of butanoic acid (C,H,CO2H). Calculate the fraction of…

A: This question is from chapter Ionic equilibrium where we are dealing with a weak acid like butanoic…

Q: In the lab you weigh 12.54 g of NaCl to make a stock solution of 5.12 M. To further dilute the…

A: Given data, Initial concentration (stock solution M1) Final concentration (M2) Final volume (further…

Q: The discharge of an abandoned mine flows into a freshwater lake. The discharge enters the lakes at a…

A: The objective of the question is to calculate the average concentration of copper in the discharge…

Q: Calculate the concentration of the chemist's working solution.

A: Given :- Initial concentration of solution =18.8μmol/L  Initial volume of solution = 20.0 mL  Final…

Q: A chemist prepares a solution of silver perchlorate (AgCIO) by measuring out 2.4 kg of silver…

A: The amount of solute present in a solution is called Concentration. There are many concnetration…

Q: A chemistry student needs 35.0 g of acetone for an experiment. She has available 420. g of a 16.8%…

A:

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.