Ankita, well donel You explanation for how you figured out 10m was part of the GCF was very detailed. The next step of factoring out the GCF is where many students get stuck There is more than one way to show how we get from 200p m³ – 30p m + 40m to 10m (20p- 3p +4)
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- Ksp = 6.7 x 10-³1 for Cr(OH)3 at 25 °C, what is the molar concentration of Cr³+ at 25 °C? M (example: type in 3.4E-5 for 3.4x10-5). Please pay attention to the number of sig. figs. in your answer. The molar concentration of OH isThe air in a recently used classroom 9m x 7m x 9m tested 0.12% carbon dioxide. How many cubic meters of fresh air must be admitted per minute in order that 10 minutes later it shall contain not over 0.06% carbon dioxide. Fresh air contains 0.04% carbon dioxide. Assumeimmediate mixing of fresh with stale air. (A) 14 (B) 11 (C) 15 (D) 19 (E) 17FSC 8 1921. Brightspace A Aktiv Chemistry C D Z < Q + # At F2 @ 2 What volume in mL of 0.3000 M NaCl solution is required to produce 0.2700 moles of NaCl? W S app.101edu.co Walmart - Hiring Ce... X F3 X # 3 11. Unit 12: Late Adulthood - Develo X E JC 4 D F4 с 144 $ JU F5 R LL F ► 11 % 5 V F6 t 44 T G A 6 F7 Simulation play - Labster B Y H F8 & 7 8 U N Question 7 of 9 DELL F9 X D * 8 J F10 ( M Walmart - Hiring Center 9 F11 JI K 2 O ) O F12 L P 4 : 7 +/- PrtScr W 8 Insert { ( **
- A first-stage recovery of magnesium from seawater is precipitationof Mg1OH22 with CaO:Mg2+(aq) + CaO(s) + H2O(l)---->Mg(OH)2(s) + Ca2+(aq) What mass of CaO, in grams, is needed to precipitate 1000lb of Mg(OH)2?What TWO things could be done to increase the solubility of a specific gas in solution? esc lock Edit Format Table 12pt v Paragraph Р !! 1 Q A 2 BIU * W S 3 Al E BV T² v 4 R % 5 D F T Ev Ev A 6 G 7 H To 188 O wo * 8Jio 4G VOLTE 46l 1.01K/s m N 40% I 12:04 PM chemical calcul... NUMERICAL PROBLEMS 10g of sodium hydroxide was dissolved in water to give a solution. with a volume o exactly 0.2 dm3. What is the molarity of the solution? A solution contains 29.0g of trichloroacetic acid (ClgC COOH) (formula wt 163) ir 1dm3 of an aqueous solution. Assuming that the acid is 72% ionized. Calculate the formal and molar concentrations of the constituents. 1. (Ans. 1.25 M 2. (Ans. Formality = 0.178 F, molarity = 0.04984M Мн- МСHgCOо-- 0.12816 mol dm 3. 7.03g of a dibasic acid of molar mass 98 are dissolved in 0.8 lit. (0.8dm3) of the solution. Calculate the molarity and normality of the acid solution. (Ans. 0.1793 M, 0.08977 M) 39 Chmical Calculations 4. Calculate the equivalent weights of the following substances a) (HgCgO4, 2H2O) in its reaction with NaOH. b) (HgCgO4, 2HgO) in its reaction with KMNO4 c) KMNO4 (in acidic medium) d) AgNOs (in its reaction with NaCI) 5. Calculate the volume of 94% H2SO,…
- O e) % KBr = % 66.2 , % KCI = % 33.8 %3D The solubility product (Ksp) for 4 points Pb(OH)2 (s) is 2.5 x 10-16. What would be the quantity of solubility by g/L of Pb(OH)2 which has Mwt =241.2 g/mole)? O 9.947 x 10-4 O 5.975 x 10-4 O 7.596 x 10-5 O 9.575 x 10-4 O 9.723 x 10-4 Calculate [H+], PH and POH 4 pointse * OWLV2 | Onlin x * MindTap - Cen x C The SolubilityX b Answered: Ma G is Ags insolubl genow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=assignment-take [References] The solubility of magnesium fluoride, MgF2, in water is 1.5 x 10-2 g/L. What is the solubility (in grams per liter) of magnesium fluoride in 0.39 M of sodium fluoride, NaF? Solubility = g/L Submit Answer Try Another Version 3 item attempts remaining C OWLV2 | Online tea.. Homo Insert> EL session.masteringchemistry.com MasteringChemistry ROSTER-2019-SPRI-PULLM-CHEM-101 blackboard wsu Google Search MasteringChemistry: HW 8 KHW 8 Applications for Dilution Calculations K8 of8 Dilution as a procedure in analysis We sometimes purposely dilute solutions if the analyte concentrations wavelengths in the visible (and sometimes uitraviolet) range. Based on the dissolved solute's properties, we can quantify that solute's concentration are too high to permit an accurate measurement. For example, a spectrophotometer can measure the amount of light that passes through a sample solution for If the solute's concentration is too high, a relatively small amount of incident light having the wavelength that corresponds to the solute's absorption behavior will less light is absorbed, and the detector in the spectrophotometer can generate more reliable data. reach the dete ctor, which results in an inaccurate measurement (consider the result if you blocked the light with an opaque…
- 5 → C W2 Discussion X esc KW6 Discussion Question 1: MyMastering Chapter 9 Homework Problem 9.38 Enhanced with Feedback M session.masteringchemistry.com/myct/itemView?assignment ProblemID=190556693 Calculate the mass/volume percent, % (m/v), for the solute in each of the following solutions. MasteringChem X F1 Q 5506 W F2 AIRI 2 7080 2 # 20 3 F3 E $ 4 00 00 00 Part A R 4.80 g of LiCl in 51.5 mL of LiCl solution Express your answer using three significant figures. F4 VE ΑΣΦ Submit Part B 7.0 g of casein in 140 mL of low-fat milk Express your answer using two significant figures. Request Answer IV|| ΑΣΦ Submit % 5 Request Answer F5 T C << tv F6 TAMANHERS MacBook Air Y & ? SA 7 % % F7 U O * 00 8 F81. What mass of MC| is needed to make 3000g or 109 solution? (MW: H= 1 , Cl= 35)a. 0.09 gb. 90 gc. 900 g d. 0.9 g 2. Detemine the mole faction of the solvent in a solution prepared by dissolving: 36g of CH3OH in 1000 of H2O. a. 55.55molesb. 0.02molesc. 0 98molesd. None of the aboveThe following data were collected for the reaction 2A + 2B + C 3G+ 4 F Experiment 2 3 4 5 [A] Units of Molarity .00125 .00250 .00125 .00125 .00301 [B] Units of Molarity 00125 .00125 00302 00302 .00100 [C] Units of Molarity 00125 .00125 .00125 00375 .00115 Rate Units M/s 00870 .0174 .0508 .457 a. What is the order with respect to each reactant and what is the overall order for the reaction? Answer this question within the answer box and show your work clearly labeled on the scratch paper. b. Write the rate law for the reaction. Answer this question within the answer box and show your work clearly labeled on the scratch paper. c. What is the value and units for k? Answer this question within the answer box and show your work clearly labeled on the scratch paper. d. Predict the rate for experiment 5, you should give a value and units. Answer this question in the answer box and show your work on the scratch paper labeled clearly.