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Q: Which statements are true regarding the chemical formula Pb(NO3)4. Select the three that apply. The…

A: Pb(NO3)4  Lead(IV) nitrate  Asked :  3 correct statements among given statements

Q: Chlorine has seven electrons in its valence shell. It accepts an electron to complete its octet and…

A: The chloride ion acts as an electrolyte and is present in all bodily fluids. It helps in the…

Q: An aerosol spray can of deodorant with a volume of 350 mL contains 3.2 g of propane gas (C3H8) as…

A: As it is given that aerosol spray can has volume of 350mL  In L= 350ml/1000 = 0.35 L Weight of…

Q: What volume (in mL) is 60% of 1.25 litres?

A: To find the volume that represents a certain percentage of a given quantity, we multiply the…

Q: For Mg calculation, where did the 0.1 value come from?

A: In healthcare, a variety of calculations are required to figure out appropriate dosages, medication…

Q: Elemental analysis of a compound with molar mass 342.3 g/mol gives the following mass percent…

A: Given Percentage of C= 42.11 %  Percentage of H=6.48 %  Percentage of O=51.41% To Calculate:…

Q: Ethanol is dissolved in water to make 0.750L of solution. Given that the solution is 2.6M, what is…

A: Calculations are very important for research and laboratory purposes. They are used to determine the…

Q: true or false The pH of healthy blood is usually about 7.4.

A: Sorensen defined pH in 1909 “pH as a negative logarithm of [H+].”Therefore, pH= -log[OH-]In the pH…

Q: Water 1H2O2 is more polar than hydrogen sulfide 1H2S2. Explain.

A: Polarity is the separation of electric charge leading to a molecule or its chemical groups having an…

Q: If you need to make 2L of 0.25M Glucose, how many grams of glucose do you need Formula for glucose:…

A: While conducting experiments in biochemistry or while creating batch cultures of bacteria and for…

Q: What is the pH of a 9.7 × 10⁻⁴ M HClO₄ solution?

A: Hydrogen ion concentration [H+] of a solution is expressed in terms of pH. pH of a solution ranges…

Q: How many mL of methadone is needed for a patient who was prescribed 0.015 g of methadone? The vial…

A: The volume of drug solution (methadone) to be infused will be calculated by considering the volume…

Q: What is the correct abbreviation for this molecule? H,C NH

A: Nucleotide is the monomer unit of the nucleic acid. A nucleotide is formed when a sugar molecule, a…

Q: What mass of nitrogen monoxide would be produced by complete reaction of 17.0 g of ammonia?

A: Nitrogen oxide is a colorless gas with the formula NO. It is one of the principal oxides of…

Q: C6h1206 is the chemical formula for a

A: Given formula: C6H12O6  It means 6 carbon, 12 hydrogen and 6 oxygen

Q: Determine the mass in grams of 6.42 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Mole (mol): the amount of material having 6.02214 × 1023 particles. This number is known as the…

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: 8.5gm/250ml = (x)gm/630ml

A: The amount of chemical dissolved in the solvent = 8.5gm The volume of the solvent…

Q: A patient with severe pain is given 2 mililiters (mL) of morphine. What dosage is give in decimal…

A: Morphine is an opioid analgesics used in the treatment of moderate to severe pain. Morphine acts in…

Q: Michelle's doctor orders 0.044 g of chlorpromazine, which is used to treat nausea. If the stock…

A: 1 gm is equivalent to 1000 milligrams. Hence,

Q: How much of 9XTBE (in ml) and how much water (in L) do you need to prepare 2 L of 1XTBE? I need I…

A: Given, 9xTBE and water. We need, 2L of 1xTBE solution. We will use the formula, M1V1 = M2V2 M1 and…

Q: What is 10% law?

A: 10% energy transfer law in the food chain is put forth by Lindeman. A pyramid of energy depicts the…

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: What is the pH of a 0.00550 M solution of HCl?

A: Strong acids completely disassociated into ions in solution but weak acids do not. The pH of the…

Q: If 4.00 L of ethyl alcohol at 18.0 ⁰C is exposed to a temperature of 25.0 ⁰C, what is the resulting…

A: Initial temparature of ethyl alcohol is T₁ = 18° C = (273 +18) K = 291 K rising the temparatute to…

Q: How many grams of sodium chloride are needed to make 0.60L of 2.3M sodium chloride solution

A: The concentration of a solution is expressed in molarity. Molarity is defined as the number of moles…

Q: 1 1/2 oz = ? mL

A: Matters can be in three different states. These are liquid, solid, and gas.  For measuring each…

Q: How many mL of 0.254 M NaOH are needed to fully react with 37.50 mL of 0.358 M H2SO4?

A: Concentration of the NaOH = 0.254 M Conc. of H2SO4 solution = 0.358 M or conc. of [H+]=2×0.358 M…

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: Calculez: 0.02cm+3.72mm+0.024m+230µm. Give the answer in mm (do not round off your answer, write…

A: A micrometer, often called a micron, is a unit of length in the metric system, symbolized as µm. It…

Q: What is the volume (in mL) of ethanol in the bottle?

A: Volume is calculated by the % by volume formula, that is volume of solute dissolved in the volume of…

Q: Chloroform is a volatile (readily changes from liquid phase to gaseous phase) once commonly used in…

A: Chloroform is an organic compound which is colorless, strong-smelling, dense liquid with a formula…

Q: The liquids butan-1-ol and butanal have similar molar masses. Which is expected to have the higher…

A: The boiling point of a substance or molecule is the temperature at which the pressure exerted by the…

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 pH of a 0.0025 M solution of HCl?

A: pH is the quantitative measure of the acidity or basicity of aqueous or other liquid solutions. and…

Q: What is the pH of a 7.5 × 10⁻⁴ M CsOH solution?

A: Introduction: pH is an indicator which is used to differentiate whether the solution is acidic or…

Q: Clara was solving the equation 4n+2−3(2−n)=31 the work for which is shown below.

A: Clara is solving an equation, which means she's trying to find the value of "n" that makes both…

Q: LM (1200) LM (1200) Identify the formed element labeled "a." LM (1200x

A: All the 3 pictures is taken under a microscope of a blood sample. Inside blood, different types of…

Q: Ethyl mercaptan is an odorous substance added to natural gas to make leaks easily detectable. A…

A: Given: Ethyl mercaptan is an odorous substance added to natural gas to make leaks easily detectable.…

Q: The doctors order 750mg of amoxicillin for your patient. A 1g vial of powdered amoxicillin is…

A: Order given = 750mg = 0.75g Available stock = 1g vial Reconstitution to be done to form 1g/10mL.…

Q: A microorganism was cultured in a flask containing a liquid medium. Samples were taken hourly and…

A: A growth curve is a diagram that shows how an organism population grows over time. It displays the…