A 25.0 mL solution of sodium dichromate, Na2Cr2O7 (261.98 g/mol), with a mass of 25.950 g, contains 1.295 g of Na2Cr2O7. What are the mass/mass percent concentration and molarity of the solution? 5.18% and 0.198 M 4.99% and 0.190 M 5.18% and 0.190 M 4.99% and 0.198 M 4.99% and 0.396 M
A solution of 1.65 g of solute dissolved in 25.0 mL of H2O at 25°C has a boiling point of 100.350°C. What is the molar mass of the solute if it is a nonvolatile nonelectrolyte and the solution behaves ideally (d of H2O at 25°C = 0.997 g/mL)?
A solution of 1.65 g of solute dissolved in 25.0 mL of H2O at 25°C has a boiling point of 100.550°C. What is the molar mass of the solute if it is a nonvolatile nonelectrolyte and the solution behaves ideally (d of H2O at 25°C = 0.997 g/mL)?
A solution of 1.10 g of solute dissolved in 25.0 mL of H20 at 25°C has a boiling point of 100.900°C. What is the molar mass of the solute if it is a nonvolatile nonelectrolyte and the solution behaves ideally (d of H,O at 25°C = 0.997 g/mL)? I g/mol
A 5.000-mL urine sample has a mass of 5.025 g. If the normal range for the specific gravity of urine is 1.003 to 1.030, would the specific gravity of this urine sample indicate that the patient could have type 2 diabetes?
Which of the following statements is correct for 25.0 mL of 3.0 M NHz solution? (NH3 has a molar mass of 17.0 g.) 1.5 grams of solute is present. 0.075 moles of solute is present. 75 milligrams of solute is present. 25.0 mL of solvent is present. Question 24 2 pts For a solution composition of 25.0 g solute and 100.0 g solvent; choose the correct numerical concentration of% (m/m). 20.0 15.0 10.0 25.0
Q12. Determine the mass (in g) of each sucrose solution that contains 19 g of sucrose. part A 4.5 % sucrose by mass part B 2.7 % sucrose by mass part C 13.3 % sucrose by mass Q.13 The percent concentration of a solution is a ratio of the amounts of dissolved solute and solution, expressed as a percentage. The percent concentration of a solution can be written generally as %concentration=amountofsoluteamountofsolution×100% A mass percent concentration may be calculated for mass/mass...
2) If a urine sample has a mass of 5,025 g, determine its volume if the urine density is 1,005 g/mL. 3) The copper has a density of 8.8571 g/mL, determine the mass if this metal occupies a space of 0.35 mL
This is a multipart question.
Which of the following statements is correct for 25.0 mL of 3.0 M NH3 solution? (NH3 has a molar mass of 17.0 O 1.5 grams of solute is present. 25.0 mL of solvent is present. 0.075 moles of solute is present. 75 milligrams of solute is present. What is the molarity of a solution containing 8.52 grams of NH3 in 2.50 l/ters of solution? O 1.53 M O 0.0653 M O 0.653 M O 0.200...
Question 71. If 25.0 mL of 0.150 M aluminum bromide reacts with 15.0 mL of 0.200 M silver nitrate, what mass of silver bromide is produced? AgBr ()+ AI(NO3)3 (aq) AIBr3 (aq)+AgNO3 (aq) a) 2.11 x 104 g b) 2.11 g c) 5.63 x 104 g d) 0.563 g e) none of the above Question 72 What is the molarity of aluminum ions in the above question before the reaction has taken place? a) 0.150 M A13 b) 0.350 M...