This is the key quantity that relates the mass to the number of moles when we are given one of the parameters. Answer and Explanation: Determine the number of millimoles, n, of the given amount of substance. We do this by dividing the mass, m, by ...
4-10 Find the number of millimoles of solute in (a) 2.00 L of 0.0555 M KMnO 4 (b) 750 m L of 3.25×10 -3 M KSCN (c) 3.50 L of a solution that contains 3.33 ppm of CuSO 4 (d) 250 mL of 0.414 M KCl的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com
How many moles of KOH are needed to neutralize 1.5 moles of H2SO4? A 1.0 L solution is prepared from 0.250 moles Na(CO2CH2CO2H) and 0.400 moles Na2(CO2CH2CO2). What is the pH of the solution? What is the pH if 0...
What volume in mL of a 0.121 M NaOH solution is required to reach the equivalence point in the complete titration of a 15.0 mL sample of 0.112 M H2SO4? What volume in milliliters of a 0.101 M NaOH solution is required to...
torr = 0.921 atm m = 50.0 g plan • We need the balanced equation to determine the number of moles of Al and then the moles of H2. 2 Al(s) + 6 HCl(aq) S 2 AlCl3(aq) + 3 H2(g) Solution map: g Al S mol Al S mol H2 We first use the molar mass for Al to ...
The mobile phase was 25 mM H2SO4 with a flow rate of 0.5 mL/min. The temperatures of the column and the detector were 40 °C and 30 °C, respectively. The hydrogen composition was quantified using a Micro-GC-TCD Varian 4900, equipped with Molsieve 5A-10 m and Poraplot Q −10 m...
Safety outcomes included total adverse events (hyperkalemia [potassium greater than 5.5 mEq/L; to convert to millimoles per liter, multiply by 1], hypokalemia [potassium less than 3.0 mEq/L], HR less than 60 beats per minute, hypotension [systolic BP less than 90 mm Hg], acute kidney ...
Answer to: A sample of 0.25 moles of an ideal gas expands from 72 milliliters to 10 liters. If the gas expands adiabatically and reversibly,...
The main concept we used here is that the number of moles of a liquid is the Molarity times its Volume. Answer and Explanation: The number of moles of the sulphuric acid {eq}H_2 SO_4 {/eq} will be given by its Molarity times its V...
What is the molarity of H2SO4?Molarity:Molarity (M) is characterized as the quantity of moles of solute (n) separated by the volume (V) of the arrangement in liters. Note that the molarity is characterized as moles of solute per liter of arrangement, not moles of solute per liter of ...