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
A solution of {eq}H_2SO_4(aq) {/eq} with a molal concentration of 2.55 m has a density of 1.151 g/mL. What is the molar concentration of this solution? Molal Concentration: The molal concentration of a solution is equal...
If 24.7 mL of 0.250 M NaOH solution are needed to neutralize 19.8 mL of H2SO4 solution, what is the molarity of the H2SO4? Molarity: Molarity of a substance is the concentration expressed as the number of moles of the substance prese...
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 ...
Molarity (M), molality (m) and the Colligative properties The molarity of a solution is the number of moles of solute per liter of solution. The symbol for molarity is M. Thus a 3.0 molar solution of nitric acid, abbreviated 3.0 M HNO 3 , contains 3.0 moles of HNO 3 per liter of ...
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...
In recent years, the exploration of the therapeutic potential of Salvia has gained considerable attention, leading to a growing number of scientific studies emphasizing its pharmacological properties. Despite this, therapeutic applications of Salvia rema
What volume must 25 ml of 95% by mass of a solution H2SO4,density 1.80 g/ml, be diluted to produce 0.5 M solution? Density is what per unit volume? How many mL are in 3.4 L? 6.58 grams of CuNO3 is dissolved in water to make a 0.270 M solution. What is the volume of the so...
H2SO4 + MgCl2 -> 2 HCl + MgSO4 Reaction Yield: The reaction yield refers to the process of calculating the amount of product that will be obtained from a chemical reaction, considering the amount of reagents that will participate in it. Depending of the...