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you have a solution that is 50.0 mg/mL of glucose. if you take 0.01 L of this solution how many grams of glucose have you taken.
1. The pH of rainwater collected in a certain part of a highly industrialized area on a particular day was 4.82. What is the H+ ion concentration of the rainwater?
2. The OH- ion concentration of a blood sample is 2.5 x 10-7 M. What is the pH of the blood?
Please help me solve this problems :(
2. The OH- ion concentration of a blood sample is 2.5 x 10-7 M. What is the pH of the blood?
Please help me solve this problems :(
. If you dissolve 25.5 g KBr in enough water to make 1.75 L of solution, what is the molarity of the solution?
I did a bit of research and realize that number of moles =concentration X volume/1000. So for this experiment, we used 1 mole of 50 ml of acid and 1 mole of 50 ml of base. So I am thinking i need to add those values (.05 each) to give me .10 because i think we would need the total moles of acid and base. Is that correct Sir? Or should I only use the number of moles of acid?
I need this info for a chemistry lab. Thank you so much.
I need this info for a chemistry lab. Thank you so much.
When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced.
CaCO3(s) + 2HCl(aq) ---> CaCl2(aq) + H20(l) +CO2(g)
1)How many grams of calcium chloride will be produced when 29.0 g of calcium carbonate are combined with 14.0 g of hydrochloric acid?
2)Which reactant is in excess and how many grams of this reactant will remain after the reaction is complete?
CaCO3(s) + 2HCl(aq) ---> CaCl2(aq) + H20(l) +CO2(g)
1)How many grams of calcium chloride will be produced when 29.0 g of calcium carbonate are combined with 14.0 g of hydrochloric acid?
2)Which reactant is in excess and how many grams of this reactant will remain after the reaction is complete?
Balance the following combustion reaction in order to answer the following questions. Use lowest whole-number coefficients.
C2H4 + O2 ---> CO2 + H20
You are given 7.5 moles of O2 to react with 1.80 × 102 g C2H4. Upon completion of the reaction, will there be any remaining C2H4?
C2H4 + O2 ---> CO2 + H20
You are given 7.5 moles of O2 to react with 1.80 × 102 g C2H4. Upon completion of the reaction, will there be any remaining C2H4?
In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B
2A ---> 3B
How many molecules of substance B are produced when 29.2 g of substance A reacts? The molar mass of substance A is 26.6 g/mol.
Step 1: Convert the mass of A to moles.
Step 2: Convert the number of moles of A to the number of moles of B.
Step 3: Convert the number of moles of B to the molecules of B.
2A ---> 3B
How many molecules of substance B are produced when 29.2 g of substance A reacts? The molar mass of substance A is 26.6 g/mol.
Step 1: Convert the mass of A to moles.
Step 2: Convert the number of moles of A to the number of moles of B.
Step 3: Convert the number of moles of B to the molecules of B.
Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KClO3(s). The equation for the reaction is
2KClO3 ---> 2KCl + 3O2
Calculate how many grams of O2(g) can be produced from heating 95.9 grams of KClO3(s).
2KClO3 ---> 2KCl + 3O2
Calculate how many grams of O2(g) can be produced from heating 95.9 grams of KClO3(s).
For the following chemical reaction, how many moles of potassium phosphate (K3PO4) will be produced from 4 mol of potassium hydroxide (KOH)?
3KOH + H3PO4 ---> K3PO4 + 3H2O
3KOH + H3PO4 ---> K3PO4 + 3H2O
For the following chemical reaction, what mass of calcium nitrate in grams will be needed to produce 3.17 mol of sodium nitrate?
Na2CO3 +Ca(NO3)2 ---> CaCO3 + 2NaNO3
Na2CO3 +Ca(NO3)2 ---> CaCO3 + 2NaNO3
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#339914 on Dec 2023
#339914 on Dec 2023