1.7 G Lioh (2024)

FAQs

How many grams of LiOH are needed to make 25g of a 4.0 solution? ›

Hence 1 g of LiOH is needed to make a 25 g of 4% solution.

Answer and Explanation:

21 g of LiOH is required.

1 Expert Answer

mass of CO₂ that can be absorbed = 0.0209 moles CO₂ x 44 g/mole = 0.9 g CO₂ (to 1 sig. fig.)

Once the molecular weight of the solute is known, the weight of chemical to dissolve in a solution for a molar solution less than 1M is calculated by the formula: grams of chemical = (molarity of solution in mole/liter) x (MW of chemical in g/mole) x (ml of solution) ÷ 1000 ml/liter.

Answer and Explanation:

So, 0.42 mole L i O H produces 0.42 mole LiBr. Therefore, 36.5 g of lithium bromide(LiBr) will be produced.

Step 1: Identify the mass of the solute. Step 2: Identify the volume of solution. Step 3: Divide the mass of the solute by the volume of solution to find the mass concentration of the solution.

Answer. To make a 500 mL of a 2.5 M NaCl solution, one would require 73.05 grams of NaCl. This is calculated by multiplying the desired molarity (2.5 M) by the volume in liters (0.5 L) to get the moles of NaCl, and then multiplying by the molar mass of NaCl (58.44 g/mol).

The molarity of the solution is 5M.

2 × 8.03 = 16.06 mol. Molar mass of LiOH = 23 g/mol. mass of 16.06 moles of LiOH = 23 ×16.06 = 369.3 g. Therefore, the required mass LiOH is 369.3 g.

However the solubility of alkali hydroxides in water increases on descending the group,LiOH is mush less soluble,which is due to the anomalous behaviour shown by Li from rest of the family members. When solubility of alkali halides are compared we will found that CsI has low solubility in water.

How much CO2 does LiOH absorb? ›

Density of LiOH is 1.43gm/mol, therefore 1litre of LiOH contains 1430gm. 1430gm of LiOH absorbs 1530gm of CO2. A vehicle requires 13 km to produce 1530gm of CO2. So 1 L of LiOH in vehicle absorbs CO2 up to 13 km.

A carbon sink absorbs carbon dioxide from the atmosphere. The ocean, soil and forests are the world's largest carbon sinks. A carbon source releases carbon dioxide into the atmosphere. Examples of carbon sources include the burning of fossil fuels like gas, coal and oil, deforestation and volcanic eruptions.

In particular, lithium hydroxide was used aboard spacecraft, such as in the Apollo program, to remove carbon dioxide from the atmosphere. It reacts with carbon dioxide to form lithium carbonate. Recently lithium hydroxide absorbent technology has been adapted for use in anesthesia machines.

Therefore, 3.27 grams of zinc react with 25 mL of 4.0M HCl solution to produce hydrogen gas at STP. STP refers to standard temperature and pressure conditions. It is defined as a temperature of 273 K (0°C or 32°F) and a pressure of 1 atmosphere (atm).

The answer is c) 400 mL. The given 4.0% NaOH is also equal to 4.0 grams NaOH per 100 mL solution. With this concentration, we can determine the volume needed to have 16 grams of NaOH. The volume needed to have 16 grams of NaOH is 400 mL.

We can set up a proportion to solve this: 5.0 grams NaBr / 100 grams solution = x grams NaBr / 50 grams solution Cross-multiplying gives us: 5.0 grams NaBr * 50 grams solution = 100 grams solution * x grams NaBr Solving for x gives us: x = (5.0 grams NaBr * 50 grams solution) / 100 grams solution = 2.5 grams NaBr So, ...

∴ 4 g of NaOH contains =6.02×102340×4=6.02×1022 atoms of Na. (d) 4 moles of NaOH.