Q: Jhe density n Of nitrOgen is A 1.25066ML at STP. the ingrams of lo00 o at= 0.9463Lo use Only units…
A: Given:- Density of nitrogen gas = 1.2506 g/ml Volume of nitrogen gas = 0.9463 L = (0.9463 x 1000)…
Q: Express the results of the following calculation in scientific notation 0.0121 cm to the power of 2…
A: Scientific notation is a method of writing a very large and small numbers.
Q: /(0.124M)+6.90 x 104 4Y3.45x104): 1 2.84 y0 is what I Keep Suting bt The Correct answer As- 0.124 M…
A: I think the parameter that has been asked in your question is concentration of reactant a at the…
Q: It is estimated that uranium is relatively common in earth's curst, occuring in amounts of 4g/metric…
A: Given that mass of uranium present in earth’s crust = 4g/ metric ton Sample of earth crust taken =…
Q: If X and Y are quantities that are related to each other by inverse proportion, what will the value…
A: If two quantities x and y are related to each other by inverse proportion Then an increase in x…
Q: Please help me with the calculations, I want to make sure they are correct compared to what I got.…
A: Solution There is some mistake in the first trial, without any solute there should be no change in…
Q: Suppose that instead of using the cylindrical rod of Example 1-2 to prepare a 1.000 kgmass we were…
A: The volume of a spherical ball will be directly proportional to the cube of the radius of the…
Q: Mass and weight are related via the equation W=mg on Earth. Mass is how much matter an object has…
A: On earth the acceleration due to gravity is 9.8 m/s2. The unknown planet having acceleration due to…
Q: 1- Chemistry is the science that 2- Type of chemistry that identification of substances present and…
A:
Q: You are a high school chemistry teacher. Describe to your students the purpose of calculating a Q…
A: Interpretation - To describe your students the purpose of Q value and demonstrate an example -…
Q: The three targets from a rifle range shown below were producedby: (A) the instructor firing a newly…
A: The following comments can be made on the accuracy and precision for each of the three sets of…
Q: Platinum, Pt, is one of the rarest of the metals. Worldwideannual production is only about 130 tons.…
A: We know that, density can be expressed as,
Q: The density of a gold nugget is 19.3 g/cm3. If the volume of the gold nugget is 0.00369 L, the mass…
A:
Q: Is this correct or does the true value need the same sig figs as the estimated value?
A: Number of significant figures gives an idea on the accuracy of the measured value.
Q: A box of clear plastic wrap for household use is polyethylene,{ CH with density = 0.910 Mg/m'. A box…
A: From area and thickness we can calculate the volume and the mass of the compound . From here we can…
Q: 40 electio 2.2 Sphere x has an axcess of 40 etectrons uhe y is neutiul. 2.25 culculute Hhe cluis on…
A: 2.1.1 -64 * 10-19 2.2.1- Quantisation 2.1.3 - X to Y 2.1.4- Q =-32* 10-19 2.1.5 - Electrostatic…
Q: The density answers are so close that I need help trying g to figure which substance goes with what
A: Substance 8 d= m/v = 8.5/15.6 = 0.55 g/ cm3 substance 9 d= m/v = 8.0/15.6 = 0.51…
Q: A student used the Procedure of this experiment to determine the formula for an oxide of tin (Sn).…
A:
Q: 425 Time Series in the North Pacific 8.30 Mauna Loa Atmospheric CO2 (ppm) ALOHA seawater PCO2 insitu…
A: A question based on tools in analytical chemistry that is to be accomplished.
Q: questions8,9,10
A: Atoms are surrounded by electrons which revolve around nucleus. During bond formation, these…
Q: Aluminum has an atomic radius of 0.1431 nm and weighs 26.9815 g/mol. Compute for its density
A: Given : Atomic weight of aluminium = 26.9815 g/mol. And radius of aluminium atom = 0.1431 nm =…
Q: od Part A Alexandra decides to climb Mt. Krumpett, which is 5000 m high. She determines that this…
A: Given, Each bar contains Mass of carbohydrate = 50 g Mass of fat = 10 g Mass of protein = 40 g Total…
Q: 17. If 223 g of Asbestos occupy 97.0 cm³, what is the density?
A: Density of any substance is calculated as follows: Density=massvolume and its unit is gcm-3
Q: gth in nm of 7.88 x 1014 s1 light. your answer. Do use proper significant figures in your answer.…
A: We will calculate wavelength
Q: A triangle is formed by three roads that connect Shelbyville, Springfield, and Capitol City…
A: Right triangle
Q: What is an element? A. Oxygen and nitrogen joined together. B. A piece of pure nickel C. A water…
A: The question is based on the concepts of general chemistry. it talks about elements which is purest…
Q: Round 20.56120 g to three significant figures.
A: Given that : We have to Round 20.56120 g to three significant figures.
Q: I am told that when determining the number of significant figures, if the decimal place is absent,…
A: Rules for Determination of Significant Figures:[i] All non-zero digits are significant.For example:…
Q: How do I round 199.887 to thrtee decimal places?
A: Welcome to bartleby ! We have to round off to three decimal place .
Q: 17. The element magnesium (Mg) can react with oxygen gas (O2) in the air to produce magnesium oxide,…
A: When Mg react with O2 it gives out MgO whic is white powder. The reaction for this changes is: 2Mg…
Q: 13. If a 91.8 cm³ block o
A: Density (d) of a substance is equal to its total mass divided by its total volume i.e d = M/V…
Q: X He JOu Ho Culor
A: The dehydration of alcohols takes place when they treated with concentrated H2SO4. The elimination…
Q: q. pV = nRT r. sin 0c = n₁ n₂ 1 s. qV= = 2/27 == my ² ‚T= ‚0c = C , V =
A: Rearrange the given formulas of the following--
Q: Q10. How many moles of point to 102 degC? The r Assume that the density c
A: When a non volatile solute is dissolved in a solvent, its boiling point is raised. And the elevation…
Q: The radioactive element carbon 14 has a 1/2 life of 5750 years a scientist determined that the bones…
A: Radioactive decay follows first order kinetics. We know that : k = 0.693/t0.5 ...(1) Here, t0.5 =…
Q: -2.421 x 108 -2421 x 101 -2421 x 103 1458 x 1016 -1458 x 10
A: Given, Mass defect (□m ) = -0.1620 amu (1 amu = 1.67 ×10-27 Kg) □m = -0.1620 × 1.67 ×10-27 =…
Q: A student finds that 24.96 g of water at 24.9 C(density=0.9971 g/cm3) is required to completly fill…
A: Given data,Mass of water to completely fill the flask=24.96gDensity of water=0.9971g/cm3Mass of…
Q: the numbers 1-3 are just sub questions, thank u!!
A:
Q: 2-86 When each of the following measurements are length is convert to inches, using a conversion…
A: The conversion factor used in the unit conversion has infinite number of significant digits. In the…
Q: Give the maximum number of electrons in an atom that can have these quantum numbers:
A: We are given different sets of quantum numbers. n = Principal quantum number. l = Azimuthal quantum…
Q: Calculate the average mass for the given data set. Trial Mass 1 2.5461 2 2.5008 3 2.4699 4 2.4687 5…
A:
Q: The range of a Pena partide with IMeV energy in aluminum if its density is 2.698 gm cm and its mass…
A:
Q: What is the difference between a direct and inverse relationship?
A: In direct relationship, if we increase one quantity, the other quantity will also increases while in…
Q: ? 239 94 Ри + 96 X + ¿n
A:
Q: the basic unit of matter is called a/an?
A: An atom is the fundamental or basic unit of matter. This means an atom is the smallest particle of…
Q: Question attached
A: Theory or Law, though both sounds similar, they are never synonymous. Theory: Suppose, take ‘Bing…
Q: f. Though considerably faster than that of lamb's tail, the exact time unit shake (1 shake = 10 ns)…
A: 1 day=24hrs So 27.3day= 27.3×24=655.2hrs 1hrs=3600sec So 655.2hrs=655.2×3600=2358720sec 10ns=1shake…
Q: By size I mean weight so what I would like to do if for example find there weight in kilograms and…
A: Our goal is to make all the units the same, let's say all need to have the same unit of mass as…
Q: १ १कजाdपior oप्टवox পeवcमन्No s o ০Xवीरटठ न० No Cmd fes+ छि गबबेपव्टd क० Fe2t . Conmpee व्ल bवकee…
A: The given redox reaction is: NO+Fe3+→NO3-+Fe2+
- Express 96.342 m using 2 significant figures
The answer is ……………………………….
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- Consider the reaction described by the equation C₂H₂Br₂ (aq) + 31¯¯(aq) · C₂H₂(g) + 2 Br¯(aq) + I₂ (aq) The rate law is rate = k[C₂H₂Br₂][I] where k = 0.00475 M-¹. s-¹. S What are the missing entries in the table? Run [C₂H₂Br₂lo (M) [Ilo (M) 1 0.249 2 3 X 0.249 0.249 y 0.249 Initial rate of formation of C₂H₂ (M-s¯¹) 0.00118 0.000589 ZAssuming that the percent of uncertainty in the calculated molar mass is the same as the percent of uncertainty in the temperature change, calculate the uncertainty in the molar mass. Could the chemist unequivocally state that the substance is cocaine? For example, is the uncertainty small enough to distinguish cocaine from codeine (C18H21NO3, molar mass = 299.36 g/mol)?(d) 99 253 Es +He 101 Md + ? 246 Cm +°C → 5 ,n+ ? 13 (f) 249 Cf + ? → 260 Db + 4 on 98 105
- professor Scimemi has accepted you as a Master’s student and you are involved in a project that studies the cellular basis of neuropsychiatric diseases. For your electrophysiology recordings you have to make a recording solution containing (in mM): 119 NaCl, 2.5 KCl, 2.5 CaCl2, 1 MgCl2, 26.2 NaHCO3, 1 NaH2PO4, 22 glucose. You need 800 ml of it. How much KCl do you need to weigh out? Hint: we only care about KCl here. (MW KCl is 74.55 g/molWhat is the difference between a primary and a secondary standard? Give an example of each.Explain the difference between molecular mass and nominal mass. Give the value of the molecular mass and nominal mass of benzene, C6H6.
- In order to measure riboflavin in a breakfast cereal, a 5.00-gram sample of the cereal was extracted with acetic acid and filtered. The extract was transferred to a 50.0 mL volumetric flask and diluted to the mark. The sample was transferred to a cuvette and the fluorescence was measured. The instrument read 59 units (Fluorescence units –an arbitrary scale). 24.00 mL of the cereal extract was sample was mixed with 1.0 mL of a riboflavin standard that was 0.500 ug/mL. The fluorescence of this mixture was measured and read 94 fluorescence units. Calculate the concentration of riboflavin per gram of cereal (use µg/gram of cereal).! 9 a alt ← Z If you live to be approximately 83 years old, how many hours long was your life? Assume a year is exactly 365 days. @ 2 W S →> X #m 3 e d C с $ 4 r f % 5 V t g Oll A 6 DELL b y h & 7 O n u j * 00 O m i k ( 9 < 4 O alt ) O 1 P ◆ ctrl : - ; { [ ? 1 +11 = I } bac 177 K to FK = C + 273 C = 5/9 (F-32)
- What is a 99% confidence interval uncertainty of the slope when we are given a trendline with a slope of 42.211 and an R² value of 0.9991 for a set of 145 data points?Which of the following responses below is/are correct? Justify your answer(s)My selection was incorrect - what else can the answer be?