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Solve for x, where M is molar and s is seconds. Include units.
x = (3.8×10^3 M^−2s^−1)(0.30M)^3
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- Express the answers to the following calculations inscientific notation:(a) 145.75 + (2.3 × 10−1)(b) 79,500 ÷ (2.5 × 102)(c) (7.0 × 10−3 ) − (8.0 × 10−4) (d) (1.0 × 104 ) × (9.9 × 106)A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration of 69.32 g.L The geochemist also measures the concentration of salt in several nearby non-isolated lakes, and finds an average concentration of 5.02 g⋅L¯¹. Assuming the salt concentration in Lake Parsons before it became isolated was equal to the average salt concentration in nearby non-isolated lakes, calculate the percentage of Lake Parsons which has evaporated since it became isolated. Be sure your answer has the correct number of significant digits.A chemist must prepare 300.mL of 2.00M aqueous silver perchlorate AgClO4 working solution. He'll do this by pouring out some 5.62molL aqueous silver perchlorate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the silver perchlorate stock solution that the chemist should pour out. Round your answer to 3 significant digits.
- Write the equation in exponential fo log_(2)256=8 The equation in exponential form.The solubility in hexane of organic compound O is measured and found to be 92.8 // at 30. °C. Calculate the volume of a saturated solution of O in hexane that would contain 31.0 g of O at this temperature. Be sure your answer has the correct unit symbol and 3 significant digits. 0 x10 ロ・ロ X μ 00 4 SSuppose 3.32 g of sodium chloride is dissolved in 100. mL of a 0.60 Maqueous solution of potassium carbonate. Calculate the final molarity of sodium cation in the solution. You can assume the volume of the solution doesn't change when the sodium chloride is dissolved in it. Be sure your answer has the correct number of significant digits. |M x10 ?
- A chemist prepares a solution of barium chloride (BaCl,) by measuring out 15.3 g of barium chloride into a 50. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's barium chloride solution. Be sure your answer has the correct number of significant digits. ||mol/L х10 ?Is the concentration of the solution prepared in the question below only approximate because sodium hydroxide is not a primary standard? * Find the mass in grams of sodium hydroxide that will be required to prepare a solution with a concentration of 0.500 mol·dm⁻³ in a 250 cm³ volumetric flask. [Round the answer to three decimal places. Do not type in the unit. Use a decimal point.] *A student prepares a 0.28 mM aqueous solution of acetic acid (CH,CO,H). Calculate the fraction of acetic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. |% x10