so theres like 2 parts to this question, a. How many grams of HCl are consumed by the reaction of 5.13 moles of magnesium? b. Whatis the mass in grams of H2 gas when 1.62 moles of Hcl...

so theres like 2 parts to this question, a. How many grams of HCl are consumed by the reaction of 5.13 moles of magnesium? b. Whatis the mass in grams of H2 gas when 1.62 moles of Hcl...

Answer in units of moles

What is the mass of DCPIP powder I will need to dissolve in what volume of water? Also, will I need to dilute the solution? And in what size of volumetric flask?

this is stoichiometry and chemistry and is difficult. please show me how to find the answer

In an engine, air is at 1x102kpa and a temperature of 298.15K in a cylinder volume of 0.400L. The air is then compressed to 0.050L volume and pressure of 2.5x103kpa. Assume number of moles is constant...

a) How many grams of CO2 would be produced if 12 grams of octane reacts with an excess of oxygen? balanced 2C8H18 + 25O2 --> 16CO2 + 18H2O b)...

In the reaction A + 2B ---> 3C + D , If 93g of A and 85g of B are combined, which reactant is the limiting reagent, and what is the theoretical yield of C in grams? (MM(A)= 55g/mole, MM(B)=...

A solution was prepared by dissolving 4.75g of sodium chloride and 0.575g of calcium chloride in water and diluting to a volume of 500.0mL. What is the molarity of chloride ions in this solution?...

What volume of 0.100 M barium chloride contains 0.125g of barium chloride?

use the equation 2C4H10+13O2----->8CO2+10H2O

how do you do this problem?????????

Question: I have 275 gal of water. Ca concentration is 100mg/L. How much CaCl2 is needed to be added for Ca to become 200mg/L? I understand that you should convert mg to grams, and...

100 ml of 20.8% barium chloride solution and 50 ml of 9.8%sulfuric acid solution will form what mass of barium sulphate?

Cu2(SO4)3 + 6K = 2Cu + 3K2SO4

What is the mass of 4.00 mol of Ca3(PO4)2

Molarity and molality of a solution (molecular weight=50) in aqueous solution is 9 and 10 respectively. What is its density?

You are given a piece of metal alloy that is made of tin and copper. If the density of the sample is found to be 8.59 g/mL what is the % Sn and % Cu in the sample?

The rxn is Mno2 + 4 Hcl gives Mncl2+ Cl2 + 2H2O the rxn is according to the stoichiometric molar ratio at NTP

How many ml of a 0.2170M NaOH solution are needed to react with 37.85ml of a 0.1085 M Hal Solution? What will the molarity of the resulting NaCl solution?

i really just don't understand how to do these problems :/

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