No need to explain. Just give the answers directly. Thank you. 1. Round off 1.274 to one (1) significant figure 2. Round off 1653 to one (1) significant figure 3. Round off 534.5 to three (3) significant figures

Q: thickness of aluminum foil mass of aluminium foil 0.405 g length of aluminum foil 9.5 cm width of…

A: Given data, Length of aluminium foil= 9.5 cm  width of aluminium foil = 9.6 cm  and mass of…

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A: We need to find the percentage of carbon 14 radioactive isotope remaining after 11460 years.    Note…

Q: Assuming water has a density of 1.00g/mL. Question Content Area 150. g of 3.05% (w/w) NaCl solution…

A: Mass of NaCl solution = 150 g  Mass percentage of NaCl solution = 3.05 % (w/w)

Q: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt.…

A: Given : concentration by % of solution A = 60 % Concentration by % of solution B = 85 %.…

Q: Part C HCI(aq) + O2(g) → H2O(1) + Cl2(g) Express your answers as integers separated by commas.…

A: Since,  We know that,  Balanced equation means number of atom in reactant side is equal to number of…

Q: A chemist adds 4 drops of hydrochloric acid to a beaker. What kind of number is "4" in this example?…

A: This is exact number. Because the number is obtained by counting. Each drop is countable. So, 4…

Q: Questions: 1. Based from the given problem, What is the molecular weight  of the tartaric acid…

A:

Q: →2 Hg(t) Fe²(aq) → Cu(s) →2 Hg(t) + 2 Cl(aq) - Sn²+ (aq) → H₂(g) → Pb(s) → Sn(s) - Ni(s) → Cd(s)…

A: Form given table  E°fe3+/fe2+ = 0.77 V E°H2O2 = 1.77 Now,  E°cell = E°c - E°a   = 1.77 - 0.77 = 1.00…

Q: A wooden block has a volume of 1.00 ft so therefore the equivalent number of cm3 is ? Recall that…

A: Solution Cubic inches (in3) and cubical centimeters (cc or cm3) square measure common units of…

Q: The highest recorded body temperature that a person has survived is 320. K. Part A You may want to…

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Q: How do I include units into my slope intercept Units - g mL 1. Y=1.2534x+0.0250 Answer- Y=1.2534x (…

A:

Q: How many squares are in this 2 x 2 grid (Figure 1)? Note that the figure link lets you know that a…

A: Given: Figure showing 2 x2 grid

Q: The mass of earth is 5.98 ×10²⁴ kg. What is the mass expressed in tera-grams?

A: Given that : Mass of earth = 5.98 ×10²⁴ kg

Q: Aluminum bronze contains 92.0% copper and 8.0% aluminum. What maximum mass of aluminum bronze can be…

A: Given: Aluminum bronze contains 92.0% copper and 8.0% aluminum.  Mass of Copper =73.5 g Mass of…

Q: Ethanol is a common laboratory solvent and has a density of 0.7890.789 g/mL. What is the mass, in…

A: The mass of an ethanol is to be determined from the given volume and density. It seems like the…

Q: 133 Tg О 1.33 х 1010 О 1.33 х 1012 О 1.33 х 108 g О 1.33 х 1014 Part D 1.5 dg -1 О 1.5 х 10g -6 О…

A: Given:-  C)  133 Tg  D)  1.5 dg  To convert : the above values in grams

Q: solve the problem using SF and PsN. Need help understanding help please

A:

Q: U.S. MINT COIN Measured MASS m (grams)   SIG. FIGS. Dime 2.268 Penny 2.500 Quarter 5.670…

A:

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

A:

Q: %Lysis COMP 250 COMP 100 COMP 20 n=1 87.77 81.73 65.8 n=2 81.71 50.45 63.7 n=3 86.64 55.38 59.4 n=4…

A: The solution of the question is given below:

Q: (1) [H*] %3D 1.59 x 10-7 м (II) [H+] = 1.04 x 10-8 M 4.0 (а) pHI = 49 %3D PHII 4.0 %3D (I) [H*] 5.69…

A: pH is defined as the negative of the logarithm of the H+ concentration. pH=-logH+ pH<7   acidic…

Q: Chemist

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Q: Volume of water in cylinder 21.6 mL Mass of empty beaker 75.360 g Mass of beaker with water 97.315 g…

A: Volume of water in cylinder 21.6 mLMass of empty beaker 75.360 gMass of beaker with water 97.315…

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: Part 3: Calculate density of a metal an unknown metal. 1. Using the pictures below, record the…

A: Given, mass of metal=7.1 gm

Q: Do the following calculation of measured masses from an experiment: 5.656 g + 168.435 g + 75.657 g…

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Q: You weigh a crucible empty to be 44.181 g. You add Mg and weigh the crucible and Mg together to be…

A: Given : Mass of crucible = 44.181 g And mass of crucible with Mg = 44.421 g

Q: 9.1.00 in³ of a liquid weigh$ 0.0644 pounds) What is the mass in gram of 0.750 mL of this liquid? 1…

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Q: 5.) Correctly match the terms listed on the left with the substances listed on the right. More than…

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Q: 1. In mL what is the volume of liquid in the burette pictured on the right (to the correct number of…

A: Three questions based on quantitative analysis, which are to be accomplished.

Q: ꜱᴜᴘᴘᴏꜱᴇ ᴛʜᴀᴛ ᴛʜᴇʀᴇ ᴀʀᴇ ꜰᴏᴜʀ ᴄᴏʟᴏʀᴇᴅ ᴄᴀɴᴅɪᴇꜱ ɪɴ ᴀ ʙᴏx, ᴛᴡᴏ ʀᴇᴅ ᴀɴᴅ ᴛᴡᴏ ʙʟᴜᴇ, ᴡʜᴀᴛ ɪꜱ ᴛʜᴇ ᴘʀᴏʙᴀʙɪʟɪᴛʏ…

A: Answer 4 :-  Total number of Candies in the box = 4 Total number of red candies in the box = 2 Total…

Q: Turn into scientific notation using dimensional analysis then solve problem

A:

Q: What is the density of a liquid, in g/mL, which has a mass of 1500 mg when the reference liquid used…

A:

Q: 76 pound flask of mercury costs $156.50. The density of mercury is 13.534 g/cm^3. 1)Find the price…

A: Given: Mass of flask = 76 pounds Density of mercury = 13.534 g/cm^3

Q: How do I find the mass of water and volume of water that are empty. I know the formulas but which…

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Q: alculate the density of the metal object based on the information given below. stopper + flask =…

A: Given- ( stopper + flask) W1 = 26.9035 g   (stopper + flask + metal) W2 = 37.7932 g  ( stopper +…

Q: a student has been given a solid sample and asked to calculate its density. She measured the mass of…

A: • The values provided in the question are:-  i) Mass of a solid sample, m = 4.528 g  ii) Initial…

Q: Table 1: Part A- Using a 3.0 mL Plastic Pipette to Measure Volume Data: Trial 1 Trial 2 Trial 3…

A: Given: Mass of beaker for trail 1 = 24.78 g Mass of beaker + water for trail 1 = 26.89 g Mass of…

Q: Bud N. Chemist must determine the density of a mineral sample. His four trials yield densities of…

A: Given:- =>trials=>a)5.27gm/cm3                   b)5.28gm/cm3                   c)5.27gm/cm3…

Q: -2 2.00 mL Of 5.80 x10"M AGNO g 245.0 mL of 3.35 x10 M NazS and 2 NANO3 tazy 248.19 78.19 Nan s 1549…

A: The solution is given below -

Q: What is the answer for the following calculation: (1.249 - 0.0234) × 139.37 ? A) 170.812 B) 170.8 C)…

A: Answer :-  (1) C) 170.81  (1.249 - 0.0234) × 139.37 = 170.81…

Q: use all applicable rules of sig figs and rounding to determine the answers:

A: 0.53 x 12.3 x 1.321 = 14.151 All the non zero numbers are significant figures. so Total significant…

Q: PART B: Aluminum has a density of 2.70 g/mL Calculate the mass (in grams) of a piece of aluminum…

A:

Q: Why are units so important in measurement? Giving examples of measurements with no units should…

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Q: 15. A student collected the data shown below to determine experimentally the density of distilled…

A:

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

A:

Q: ▼ ▼ Part A NaOH with [OH-] = 1.4 x 10-²M Express your answer using two significant figures. 15. ΑΣΦ…

A: we have to calculate the hydronium ion concentration

Q: A brick of a certain metal has area on top of 3.34 cm x 7.33 cm. lIt has mass 791 g. How high is the…

A: Given that: Area of brick of metal = 3.34cm × 7.33cm Mass of brick = 791 g Density = 11.8 g/cm3…

Q: 22.9 mol Hg Express your answer using three significant figures. O E ΑΣφ Submit Request Answer Part…

A: Given :-  c) number of moles of Hg = 22.9 mol  d) number of moles of Na = 0.280 mol  To calculate :-…

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.