Indicate whether the statements below are TRUE or FALSE.   You work with two sugars. Glucose (MW = 180 Da) and Sucrose (MW= 342 Da). You make various solutions of each sugar separately and compare them. 1. When you compare two 1-liter solutions containing these sugars at a 10mM concentration, there are more molecules of sucrose in 1 liter because its MW is higher than that of glucose. 2. When you compare two solutions at the same percentage concentration (e.g. 1%), the molarity (= concentration in mole/liter) is higher for glucose because the molecular weight of glucose is lower. 3. When you have 1 liter of a solution containing 90g of glucose, you must use 171g of sucrose to make a 1-liter sucrose solution with the same molar concentration

Please, answer thisss..

A solution containing 78 g of NaNO3 in 70. g H2O at 50 ° C is cooled to 20 °C. Use the solubility data from the table below. Part A Solubility (g/100. g H2O) Substance 20 °C 50 °C How many grams of NaNO3 remain in solution at 20 °C? KCI 34 43 Express your answer in grams to two significant figures. NaNO3 88 110 ? C12 H22O11 (sugar) 204 260

For those anions that usually form soluble compounds, which cations result in the formation of insoluble compounds? List each cation separately.

In your first task, you are required to prepare a 100 mL solution of sodium bicarbonate at a concentration of 0.50 M. Complete the following table and calculate the mass of sodium bicarbonate needed to prepare this solution. Molecular weight of sodium bicarbonate Required final concentration Required final volume Amount of sodium bicarbonate needed to make 1 L at 0.5 M Amount of sodium bicarbonate needed to make 100 mL at 0.5 M Mass (g) = Amount (mol) × Molecular Weight (g/mol) Value 84.01 Now that you know the amount of sodium bicarbonate in mol needed to make your solution, you can convert this value into the mass by using the molecular weight of the compound. The following equation may be helpful: Mass of sodium bicarbonate needed to make 100 mL at 0.5 M Units g/mol M (mol/L) L mol mol g In the 100 mL 0.5 M solution, how many molecules of sodium bicarbonate have been added. Hint - In 1 mole there are 6.022 × 10²³ molecules.

Q9 chapter 15 preparing solutions Solve Asap please

Complete the data below. H2SO4 concentration was 1.304 M. Na2B4O7·10 H2O concentration was 0.105 M.

Please help me with this question

A student conducts an experiment. The student prepared 3 beakers which sequentially contained copper metal, zinc metal and 1M sulfuric acid solution. Which of the following statements is true…. A. Copper will dissolve to produce H2 . gas B. When the two metals are connected by a wire, the copper will dissolve C. Zinc metal will dissolve to produce H2 . gas D. Both metals will dissolve

You dilute the river water 10 times for the analysis of SDS concentration. The instrument measures an average molar concentration of SDS in the diluted river water to be 1.689 10-4 mol/L. The molar mass of SDS is 288.4 g/mol. What is the mass concentration of SDS in the original river water? 4.87 10-1 g/L 4.87 102 g/L 5.86 106 g/L 5.86 10-5 g/L