Q: A student dispensing a solution (the volume is between 20-30 mL) into a reaction container using a…
A: The least count of volumetric buret is 0.01 mL. Hence the reading should be taken upto 2 decimal…
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: How many mL?
A: Measurements in chemistry.
Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…
A: Molality: Molality gives us an idea regarding the no. of moles of solute present per unit Kilogram…
Q: . What is that volume in liters?
A:
Q: What is the equivalent in joules of 126 Calories?
A: joule and calories are the unit of energy , joule is the SI unit of energy.
Q: What is the SI unit of volume? What is the other common unit which in notan SI unit of volume.
A: The SI unit of volume is m3
Q: What volume of water is in 150g of water
A: For water, the density is 1 gm per ml. Volume can be calculated by dividing mass by density.
Q: What is the volume of 1000 g of metal A?
A: Interpretation- To determine the volume of 1000g of metal A - Introduction- To determine the…
Q: be
A: Here we are calculating density of a gas by using it's volume and mass
Q: how many liters in 6.02x1023 molecules of CO2
A: Assuming the pressure and temperature of atmosphere as P = pressure = 1 atm T = temperature = 300…
Q: A chemist prepares a solution of silver nitrate (AGNO,) by measuring out 210. g of silver nitrate…
A: Given, the amount of AgNO3 =210.0 gvolume of flask =volume of solution =200.0 mL =0.2 Lmolar mass of…
Q: decide if the given statement is true or false,and give a brief justification for your answer.If…
A: Given statement, In the metric system, the concentration of chemical in a tank of solution is…
Q: the volume of
A:
Q: Calculate the volume in liters of a 6.54 g/dL barium chlorate solution that contains 111. g of…
A: From the concentration of barium chlorate we can find the value of solution in Liters that contains…
Q: What is the standard SI unit for volume?
A: Volume of any object/species is the measure of the amount occupied in it's three dimensional space.…
Q: How do I find the original water level in a beaker, when I’m given the mass of a metal (grams)…
A: Calculate the volume of the given metal by using the relationship between mass and density,
Q: A chemist prepares a solution of aluminum chloride (AICI,) by measuring out 40. g of aluminum…
A: Given, amount of AlCl3 =40.0 gvolume of flask filled upto mark = volume of solution =100.0 mL =0.1…
Q: C the Henry's Law e the mass in grams
A:
Q: What is the volume of 25g of mercury
A: Given;
Q: The number of milligrams equivalent of any substance can be calculated from
A: In this question, we will see how to calculate the number of milligrams equivalent. You can see how…
Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…
A: Given : Value in mL = 0.010 mL
Q: 1.6 L of a 0.95 % NaCl using a 18.0 % (m/v) NaCl stock solution Express your answer to two…
A:
Q: Which of the following is not a fundamental metric unit? mole a second meter d. gram
A: Length, mass and time - these three units are independent on each other and several units are…
Q: A humidifier located at a nursing station holds 4.00 galloons of water . How many fluids ounces of…
A:
Q: According to the metric system, 1Gg= g
A: 1Gg is equal to how many gram ?
Q: e quantity of
A:
Q: hat volume of
A:
Q: A chemist prepares a solution of silver(I) nitrate (AGNO,) by measuring out 245. µmol of silver(I)…
A: Concentration in terms of Micromole per litre...
Q: e volume of
A:
Q: ny g is equivalent to 1500 µg?
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: A chemist prepares a solution of aluminum sulfate (Al, (So,)) by measuring out 82. g of aluminum…
A: Given mass of aluminium sulfate is 82.0 g. Molar mass of aluminium sulfate is 342.15 g/mol. Molarity…
Q: A chemist prepares a solution of aluminum chloride (AlCl,) by measuring out 40. g of aluminum…
A: Molarity: The number of moles of solute dissolved in one litre of solution is called Molarity.…
Q: 5a.
A: Given: (m/v) NaCl stock solution M1 = 19.0 % (m/v) NaCl solution M2 = 0.90 % NaCl solution V2 = 1.7…
Q: the volume of an irregular shaped rock is determined by displacement. when the rock is added to…
A: Given: The initial volume of water in which the rock is added = 38.5 mL. The water volume rises to…
Q: v milliliters c
A:
Q: V volume of th
A:
Q: milliliters of
A:
Q: 18/8 stainless steel is made up of 18% (m/m) chromium and 8% (m/m) nickel in iron. What mass of iron…
A:
Q: The volume c
A:
Q: what is the volume of a single drop of substance if 10 drops is equal to 1.549cm3?
A: Given that the volume of 10 drops of substance is 1.549 cm3. By relating this condition volume of…
Q: Calculate the volume in liters of mercury(I) chloride solution
A: Molarity of solution is the ratio of number of moles of solute to the volume of solution (in L)…
Q: e normality
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Vhat mass ( in g ) of NaCl is needed to make 590 g of a 11.0% NaCl solu our answer to 2 decimal…
A: Given, Mass of Solution = 590 g Mass % = 11.0 %
Q: How would the masses compare if the volumes were equal?
A: Mass and volume are related to each other as follows: density=massVolume
Q: L. How many liters will it
A:
Q: what will the new volume be?
A: P1 = 1.7 atm V1 = 15.3 L T1 = 45.C = 273 + 45 =…
Q: Provide one metric unit of volume.
A: Volume is amount of space that an object takes up.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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- 125.1 mg of streptomycin sulphate are dissolved in 10 ml of water. A GC headspace analysis is carried out in order to determine the methanol content of the drug. A peak for methanol is produced which has 73.2% of the area of a peak for a methanol standard containing 0.532 mg/100 ml of methanol in water analysed under exactly the same conditions, What is the methanol content of the streptomycin sulphate in ppm and %w/w? Answer: 311.3 ppm, 0.3113 % w/w.how??Downvoted for wrong solution. A river is carrying water containing 2000 mg/l Magnesium Chloride into a small lake. The lake has a naturally occurring Magnesium Chloride of 50 mg/l. If the river flow is 2500 Lmin and the lake flow rate is 1.5 m³.sec¹, what is the concentration of MgCl2 in the lake after the discharge point? Assume that the flows in the river and lake are completely mixed, that the salt is a conservative substance, and the system is at steady state.Penicillin is hydrolyzed and thereby rendered inactive by beta-lactamase, an enzyme present in some penicillin-resistant bacteria. The mass of this enzyme is 30.0 kDa. The amount of penicillin hydrolyzed in 1 minute in a 1 mL solution containing 3 x 10-3 g of the enzyme was measured as a function of the concentration of penicillin. Calculate Km, Vmax , and kcat from the following data: (Clearly show where 1/Vmax and -1/Km are; clearly explain how to obtain your kcat value). [S] (mM) vo (mM s-1) 0.14 0.138 0.28 0.234 0.55 0.333 0.77 0.388 1.52 0.491
- What volume (in mL) of the prepared high alcoholic elixir is needed if Rx requires 120 mL of an alcoholic elixir with 35% v/v alcoholic strength? Low alcoholic elixir alcoholic strength: 20% High alcoholic elixir alcoholic strength: 79% a 30.51 mL b 89.49 mL c 34.80 mL d 85.20 mLWhat volume (mL) of the prepared low alcoholic elixir is needed if the prescription requires 120 mL of an alcoholic elixir with 35% v/v alcoholic strength? Low alcoholic elixir alcoholic strength: 20% Low Alcoholic ElixirCompound Orange Spirit 10mLAlcohol 100mLGlycerin 200mLSucrose 320gPurified water, qs ad 1000mL High alcoholic elixir alcoholic strength: 79% High Alcoholic ElixirCompound Orange Spirit 4mLSaccharin 3gGlycerin 200mLAlcohol, qs ad 1000mL a 30.51 mL b 119.39 mL c 89.49 mL d 30.61 mLThe concentration of purified OXA-M290 is tested with a BCA assay. Serial dilutions of a bovine serum albumin (BSA) stock solution are prepared, then pipetted into a 96-well plate; each dilution of the BSA standard is tested in triplicate. Then, bicinchoninic acid and Cu2+ ions are added to all of the wells of the plate. After incubating the plate for 1 hour, a microplate reader is used to measure the absorbance of all of the wells in the plate at 560 nm. This generates the following data: BSA conc. (μg/mL), Replicate 1 Absorbance, Replicate 2 Absorbance, Replicate 3 Absorbance 40, 1.360, 1.403, 1.481 20, 0.750, 0.745, 0.810 10, 0.380, 0.344, 0.398 5, 0.198, 0.160, 0.183 2.5, 0.090, 0.100, 0.085 1.25, 0.038, 0.043, 0.051 0.625, 0.024, 0.028, 0.019 Prepare a calibration curve using these data. You can use Excel, R, SPSS or an equivalent graphing software. In this graph, plot absorbance (y-axis) against the concentration of the protein standard (x-axis). Calculate and plot…
- The aqueous solution of acetic with a flow rate of 1000 kg/hr contains 30% acetic acid by mass and will be extracted in a countercurrent multistage process with pure isopropyl ether (IPE) to reduce the acetic acid concentration in the final raffinate phase (LN) to 2% by mass. a) Calculate the minimum solvent flow. b) Determine the theoretical number of steps required when using a solvent of 1.5 minimum solvent flow rate. c) Determine the number of theoretical steps using the McCabe-Thiele method. Chart. Acetic acid (A)-Water (B)-isopropyl ether (IPE) (C) LIQUID-Liquid Balances at 1 atm pressure and 293 K Water layer (%) Water (B) Isopropyl ether layer (%) Water (B) 0.6 Acetic acid (A) IPE (C) Acetic acid (A) IPE (C) 98.8 1.2 99.4 99.3 98.9 0.69 98.1 1.2 0.18 0.5 1.41 97.1 1.5 0.37 0.7 2.89 95.5 1.6 0.79 98.4 91.7 1.9 1.0 97.1 6.42 13.30 25.50 36.70 1.9 93.3 4.82 11.40 2.3 84.4 71.1 3.4 3.9 84.7 71.5 21.60 31.10 58.9 4.4 6.9 58.1 48.7 10.6 10.8 45.1 37.1 44.30 46.40 16.5 36.20 15.1…A 100 g soil containing 20% smectitie mineral matter was mixed with 150 mL solution containing 0.10 M Pb. CEC of pure smectitie is 110 emol(+)/kg. CEC of the soil (cmol(+)/kg) is:1. Sodium carbonate is recovered as decahydrate from 1000kg of 5% solution of sodium carbonate in water. If it is desired that 95% of Na2CO3 is to be recovered as decahydrate by cooling to 278 K, determine the following: a) the mass of water evaporated (b) the mass of crystals obtained (Na2CO3 ∙ 10H2O). The solubility of Na2CO3 in water at 278K is 9.0% (weight) 2. A copra batch contains 44% oil and is to be extracted with n-hexane. The extracted meal contains 0.07 kg of oil/kg oil free matter and the mass fraction of n-hexane in it is 0.05. The extract contains 49% n- hexane. If 10,000 kg of copra are to be processed, how many kg of n-hexane are required and the determine the amount of extract. 3. Absorption of sulphur dioxide is carried out in a packed tower. Gas containing 14.8% sulphur dioxide and the rest inert gases enters the tower while the leaving gases contains 1% sulphur dioxide. Water flows at the rate of 1m3/min. The tower handles 7380 m3/hr of gas at 303K and 1 bar. Find…
- A chart is prepared by plotting In Ksp versus 1/T, using data obtained by performing a lab experiment. Refer to the attached photo for reference on how to solve these equations. Particularly #5 should be useful: A linear fit of the data in the chart yields the equation y = (-5.0020x10^3)x+(2.100x10^1) with an R2 value of 0.9922. Determine the enthalpy (deltaH in kJ) associated with dissolving KNO3. Answer in scientific notation with appropriate sigfigs.Give the molar concentration of hydrochloric acid with a specific gravity of 1.18 and has 37% (w/w) purity. MW=36.5Use E5C.1(a) to Plot the data in excel. Place two data sets on the same graph: one for temp vs. x and one for temp vs y (remember, x and y are the mole fractions and they belong on the x-axis). Don’t forget to include the boiling points of the pure substances – they are data, too. Add a trendline (polynomial, 3rd order should work) to each of the coexistence lines separately. Scale the plot appropriately and use the graph to answer the questions. Then complete E5C.1(b)