# chemistry

0.050 kg of 4.0% (m/m) MgCl2

the answer is 2.0g MgCl2

how do you show the work

1. 👍 0
2. 👎 0
3. 👁 381
1. It would help if you asked a question. There is none here. Do you want grams MgCl2? If you have 0.050 kg solution that is 0.050 kg x (1000g/kg) = 50 g solution. If that is 4% MgCl2, then 50g solution x 0.04 = 2 g MgCl2

1. 👍 1
2. 👎 0

## Similar Questions

1. ### Chemistry

please help! I don't understand any of this. Using the Solubility Rules, write the balanced molecular, total ionic, and net ionic equations (including physical states) for the following: Hints: There is no such thing as an Na3+.

2. ### Chemistry

How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl? I've concluded the answer is 0.02 moles of H2, but I'm doubting myself a lot because I don't understand the aspects of the

3. ### Chemistry

Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g) delta H1? MgO(s) + 2HCl(aq) ->MgCl2(aq) + H2O(l) delta H2? To make these equations add up to the formation reaction of MgO, you will need to include the following: H2(g) + 1/2O2(l) delta H

4. ### Chemistry

Will 1 L of 1 M NaCl contain more chloride ions than 0.5 L of 1 M MgCl2 explain. One liter of 1 M NaCl contains________ mole(s) of NaCl, therefore_______ mole(s) of chloride ions. 0.5 L of 1 M MgCl2 contains__________ mole(s) of

1. ### chemistry

Which chemical equation is balanced to show that mass is conserved during the reaction? A. Na + Cl₂ --> NaCl B. 2H₂ O₂ --> 2H O + O₂ C. CH₄ + O₂ --> CO₂ + 2H₂ O D. AgNO₃ + MgCl₂ --> AgCl +MgNO₃ Please Help!!!

2. ### chemistry

Write a balanced chemical reaction to show the dissociation of solid magnesium chloride (MgCl2) in water, indicate states of the reactants and products

3. ### College Chemistry

Determine the concentrations of MgCl2, Mg2+, and Cl- in a solution prepared by dissolving 2.39 x 10^-4g MgCl2 in 2.50L of water. Express all three concentrations in molarity. Also display the concentrations of ionic species in

4. ### Chemistry

Mg + 2HCl -> MgCl2 +H2 delta H = ? MgO + 2HCl (aq) -> MgCl2+ H2O delta H = ? H2+ 1/2O2 -> H2O delta H = -285.8 kJ Using Hess' Law find both the missing delta H values.

1. ### chemistry

3 MgCl2(aq) + 2 Na3PO4(aq) ==> Mg3(PO4)2(s) + 6 NaCl(aq) How many milliliters of 0.0800 M Na3PO4(aq) will react with 0.060 mol of MgCl2(aq)?

2. ### Chemistry

I'm trying to calculate the enthalpy of the reaction Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2 (g) however I cannot find the enthalpy of the compound MgCl2 (aq) and I cannot calculate the total enthalpy without it

3. ### Chemistry

Predict whether or not a precipitate will form upon mixing 75.0 mL of a NaOH solution with pOH = 2.58 with 125.0 mL of a 0.018 M MgCl2 solution. Identify the precipitate, if any. Express as a chemical rxn NaOH(aq) + MgCl2(aq) =>

4. ### Chemistry

A student is given 2.94g of a mixture containing anhydrous MgCl2 and KNO3. To determine the percentage by mass of MgCl2 in the mixture, the student uses excess AgNO3 to precipitate the chlorides ios as AgCl Starting with the 2.94g